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   Home Page > Executive Branch > Code of Federal Regulations > Electronic Code
   of Federal Regulations

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                e-CFR Data is current as of October 1, 2007

   Title 47: Telecommunication

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PART 23—INTERNATIONAL FIXED PUBLIC RADIOCOMMUNICATION SERVICES
   ___________________________________

   Section Contents
   Fixed Public Services
   § 23.1   Definitions.
   § 23.11   Use of radiotelephone emissions by radiotelegraph stations.
   § 23.12   Use of radiotelegraph emissions by radiotelephone stations.
   § 23.13   Types of emission.
   § 23.14   Emission, bandwidth, modulation and transmission characteristics.
   § 23.15   Emission limitations.
   § 23.16   Frequency tolerances.
   § 23.17   Frequency measurement.
   § 23.18   Authorization of power.
   § 23.19   Use of directional antennas.
   § 23.20   Assignment of frequencies.
   § 23.21   Communications by international control stations.
   § 23.23   Use of frequencies for radio-telegraph communication within the
   continental United States.
   § 23.24   Correspondents and points of communication.
   § 23.25   Points of communication, limitations.
   § 23.26   Use of transmitters.
   § 23.27   Experimental research.
   § 23.28   Special temporary authorization.
   § 23.29   License period and expiration time.
   § 23.31   Period of construction.
   § 23.32   Equipment and service tests.
   § 23.35   Compliance with tariff requirements.
   § 23.36   Posting of license.
   § 23.37   Station identification.
   § 23.38   Experimental points of communication, limitations.
   § 23.39   Antenna structures.
   § 23.40   [Reserved]
   § 23.41   Quarterly report of frequency usage.
   § 23.42   License, simultaneous modification and renewal.
   § 23.43   Maintenance tests of licensed stations.
   § 23.44   Station inspection.
   § 23.45   Operator license, posting of.
   § 23.46   Operators, class required and general duties.
   § 23.47   Station records.
   § 23.48   Content of station records.
   § 23.49   Discontinuance of operation.
   § 23.50   Place of filing application; fees and number of copies.
   § 23.51   Addressed program material.
   § 23.52   Mobile stations, transmission simultaneously to.
   § 23.53   Addressed press and meteorological services.
   § 23.54   Use of double sideband radiotelephone.
   § 23.55   Equal employment opportunities.
   ___________________________________

   Authority:   Secs. 4, 303, 48 Stat. 1066, 1082 as amended; 47 U.S.C. 154,
   303. Interpret or apply sec. 301, 48 Stat. 1081; 47 U.S.C. 301.

   Source:     28 FR 13032 , Dec. 5, 1963;  36 FR 2562 , Feb. 6, 1971, unless
   otherwise noted.

Fixed Public Services

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§ 23.1   Definitions.

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   Assigned  frequency.  The  frequency  coinciding with the center of an
   authorized bandwidth of emission.

   Authorized bandwidth. The maximum bandwidth authorized to be used by a
   station  as  specified  in the station license. This shall be occupied
   bandwidth or necessary bandwidth, whichever is greater.

   Authorized reference frequency. A frequency having a fixed and specific
   position with respect to the assigned frequency.

   Authorized  service. The term “authorized service” of a point-to-point
   radiotelegraph or radiotelephone station means the transmission of public
   correspondence to a point of communication as defined herein subject to such
   special provisions as may be contained in the license of the station or in
   accordance with §23.53.

   Fixed  public  service.  The  term  “fixed  public  service”  means  a
   radiocommunication service carried on between fixed stations open to public
   correspondence.

   Fixed public press service. The term “fixed public press service” means a
   limited  radio communication service carried on between point-to-point
   telegraph stations, consisting of transmissions by fixed stations open to
   limited public correspondence, of news items, or other material related to
   or intended for publication by press agencies, newspapers, or for public
   dissemination. In addition, these transmissions may be directed to one or
   more fixed points specifically named in a station license, or to unnamed
   points in accordance with the provisions of §23.53.

   Note:  This  section  is  not  intended  as  a definition of any press
   classification. Correspondence admissible under any press classification is
   determined by the tariffs of the various common carriers on file with the
   Commission.

   Fixed station. The term “fixed station” in the fixed public or fixed public
   press  service includes all apparatus used in rendering the authorized
   service at a particular location under a single instrument of authorization.

   Frequency  tolerance.  The maximum permissible departure by the center
   frequency of the frequency band occupied by an emission from the assigned
   frequency or by the carrier, or suppressed carrier, from the reference
   frequency.

   International fixed public radiocommunication service. A fixed service, the
   stations of which are open to public correspondence and which, in general,
   is intended to provide radiocommunication between any one of the contiguous
   48 states (including the District of Columbia) and the State of Alaska, or
   the State of Hawaii, or any U.S. possession or any foreign point; or between
   any U.S. possession and any other point; or between the State of Alaska and
   any other point; or between the State of Hawaii and any other point. In
   addition, radiocommunications within the contiguous 48 states (including the
   District of Columbia) in connection with the relaying of international
   traffic between stations which provide the above service, are also deemed to
   be the international fixed public radiocommunications service; provided,
   however,  that communications solely between Alaska, or any one of the
   contiguous 48 states (including the District of Columbia), and either Canada
   or  Mexico  are  not  deemed  to  be in the international fixed public
   radiocommunication service when such radiocommunications are transmitted on
   frequencies above 72 MHz.

   International fixed public control service. A fixed service carried on for
   the  purpose of communicating between transmitting stations, receiving
   stations, message centers or control points in the international fixed
   public radiocommunication service.

   Occupied bandwidth. The frequency bandwidth such that, below its lower and
   above its upper frequency limits, the mean powers radiated are each equal to
   0.5 percent of the total mean power radiated by a given emission.

   Point-to-point  telegraph  station. The term “point-to-point telegraph
   station” means a fixed station authorized for radiotelegraph communication.

   Point-to-point  telephone  station. The term “point-to-point telephone
   station” means a fixed station authorized for radiotelephone communication.

   Point of communication. The term “point of communication” means a specific
   location designated in the license to which a station is authorized to
   communicate for the transmission of public correspondence.

   Radiotelegraph. The term “radiotelegraph” as used in this part shall be
   construed to include types N0N, A1A, A2A, A3C, F1B, F2B, and F3C emission.

   Radiotelephone. The term “radiotelephone” as used in this part, with respect
   to   operation  on  frequencies  below  30  MHz,  means  a  system  of
   radiocommunication for the transmission of speech or, in some cases, other
   sounds by means of amplitude modulation including double sideband (A3E),
   single sideband (R3E, H3E, J3E) or independent sideband (B3E) transmission.

   [ 38 FR 22478 , Aug. 21, 1973, as amended at  49 FR 48701 , Dec. 14, 1984]

§ 23.11   Use of radiotelephone emissions by radiotelegraph stations.

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   The licensee of a radiotelegraph station, using frequencies below 30 MHz,
   may be authorized to use radiotelephone emissions as defined in §23.1 for
   the following purposes:

   (a) Transmission of addressed program material as set forth in §23.51.

   (b) Controlling the transmission or reception of addressed program material

   (c) Controlling the transmission or reception of facsimile material.

   [ 28 FR 13032 , Dec. 5, 1963, as amended at  36 FR 2562 , Feb. 6, 1971;  38 FR 22479 , Aug. 21, 1973]

§ 23.12   Use of radiotelegraph emissions by radiotelephone stations.

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   The licensee of a point-to-point radiotelephone station may be authorized to
   use type N0N, A1A, A2A, F1B, or F2B emission for identification, for test
   purposes or for the exchange of service messages.

   [ 49 FR 48701 , Dec. 14, 1984]

§ 23.13   Types of emission.

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   Stations in the international fixed public radiocommunication services may
   be authorized to use any of the types of emission or combinations thereof,
   described in part 2 of this chapter, as well as new types which may be
   developed: Provided, That harmful interference to adjacent operations is not
   caused  thereby,  And  provided  further,  That the intelligence to be
   transmitted will use the bandwidth requested to a degree of efficiency
   compatible  with  the current state of the art. A determination of the
   possibilities of interference will be made as outlined in §23.20. In certain
   cases frequencies or emissions may be authorized on a temporary basis to
   determine if interference will occur. During normal operations, emissions
   shall be centered about an assigned frequency. Non-centered emissions may be
   employed for short periods of time as needed to avoid interfering signals or
   meet fluctuating traffic loading: Provided, That the occupied bandwidth of
   these emissions be contained within the authorized bandwidth, And provided
   further , That prior to any such use, the Commission be notified of the
   reference  frequency or frequencies proposed to be used in lieu of the
   assigned frequency.

   [ 38 FR 22479 , Aug. 21, 1973]

§ 23.14   Emission, bandwidth, modulation and transmission characteristics.

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   In  the  services  under  this  part emissions are designated by their
   classification  and  their  necessary bandwidth in accordance with the
   following procedures:

   (a) Designation of emissions in applications. In applying for new frequency
   assignments for emissions not presently authorized, the emissions proposed
   to be used shall be described and their bandwidths specified as outlined in
   part 2 of this chapter.

   (b) Designation of emissions in authorizations. The emission designations
   used in authorizations will indicate only the maximum value of the necessary
   bandwidth for each type of modulation authorized.

   (c) New types of emissions. If application is made for a type of emission
   not covered by part 2 of this chapter, a full description of the emission
   must be provided and, if possible, measurements of its occupied bandwidth.

   [ 38 FR 22479 , Aug. 21, 1973, as amended at  49 FR 48701 , Dec. 14, 1984]

§ 23.15   Emission limitations.

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   (a) For all transmitters placed into operation after September 19, 1973, and
   for all transmitters after September 19, 1975, which operate on frequencies
   below 30 MHz:

   (1) The occupied bandwidth of emission shall be confined within the least
   possible  spectrum  space consistent with the state of the art and the
   required quality of transmission, and in no event shall be more than the
   authorized bandwidth.

   (2) Spurious emissions of transmitters of mean power of 50 kilowatts or less
   shall  be  attenuated at least 40 decibels below the mean power of the
   fundamental without exceeding the power of 50 milliwatts.

   (3) Spurious emissions of transmitters of mean power exceeding 50 kilowatts
   shall  be  attenuated at least 60 decibels below the mean power of the
   fundamental and every effort should be made to keep the level of spurious
   emissions below the power of 50 milliwatts.

   (b) For all transmitters placed into operation after September 19, 1973, and
   for all transmitters after September 19, 1975, which operate on frequencies
   above 30 MHz, the mean powers of emissions shall be attenuated below the
   mean  output power of the transmitter in accordance with the following
   schedule:

   (1) On any frequency removed from the assigned frequency by more than 50
   percent up to and including 100 percent of the authorized bandwidth: At
   least 25 decibels;

   (2) On any frequency removed from the assigned frequency by more than 100
   percent up to and including 250 percent of the authorized bandwidth: at
   least 35 decibels;

   (3) On any frequency removed from the assigned frequency by more than 250
   percent of the authorized bandwidth: at least 43 plus 10 log (mean output
   power  in  watts)  decibels,  or  80 decibels, whichever is the lesser
   attenuation.

   (c) When an emission outside of the authorized bandwidth causes harmful
   interference,  the  Commission may, at its discretion, require greater
   attenuation than that specified in this section.

   [ 38 FR 22479 , Aug. 21, 1973;  38 FR 24901 , Sept. 11, 1973]

§ 23.16   Frequency tolerances.

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   (a) The frequency tolerance for stations in the International Fixed Public
   Radiocommunications  Services shall be maintained as prescribed in the
   following table:
   Frequency range Tolerances applicable to new transmitters installed after
   September 19, 1973, and to all transmitters after September 19, 1975
   Percent Parts per million
   10 to 50 kHz .1 1000
   50 to 535 kHz .02 200
   1605 to 30,000 kHz .0015 15
   30 to 50 MHz .002 20
   50 to 000 MHz .0005 5
   1000 to 1850 MHz .001 10
   1850 to 1990 MHz .02 200
   1990 to 2500 MHz .001 10
   2500 to 10,500 MHz .03 300
   10,500 to 40,000 MHz .05 500

   (b)  Until September 19, 1975, the frequency tolerance of transmitters
   installed at stations in these services before September 19, 1973, and
   operating within the frequency bands set forth below, shall be maintained
   within the following limits:
    Frequency range  Tolerance (percent)
   10 to 50 kHz                      0.1
   50 to 535 kHz                    0.02
   1605 to 30000 kHz               0.003
   Above 30 MHz                     (^1)

   ^1As set forth in the radio station license.

   [ 38 FR 27386 , Oct. 3, 1973]

§ 23.17   Frequency measurement.

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   Each station shall provide for the measurement of all frequencies assigned
   thereto,  and establish a procedure for checking them regularly. These
   measurements shall be made by means independent of the frequency control of
   the transmitter and shall be of accuracy sufficient to detect deviation from
   the assigned frequency within one-half of the allowed tolerance. A record
   shall be kept of the results and dates of all frequency measurements.

   [ 38 FR 22480 , Aug. 21, 1973]

§ 23.18   Authorization of power.

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   (a) Authorized power. Power, when designated in the respective station
   license for a particular transmitter or transmitters, is peak envelope power
   for  transmitters  having  full,  unkeyed  carrier, single sideband or
   independent sideband emissions, and mean power for transmitters having other
   emissions, unless specifically expressed otherwise. Designation of effective
   radiated power may appear in the station license in addition to designation
   of power for a transmitter or transmitters, when deemed necessary by the
   Commission.

   (b) Use of minimum power. In the interest of avoiding interference to other
   operations, all stations shall radiate only as much power as is necessary to
   ensure a satisfactory service.

   [ 38 FR 22480 , Aug. 21, 1973]

§ 23.19   Use of directional antennas.

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   Insofar as is practicable, directional antennas, of type consistent with the
   current state of art, shall be used on all circuits for both transmitting
   and receiving.

   [ 38 FR 22480 , Aug. 21, 1973]

§ 23.20   Assignment of frequencies.

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   (a) Only those frequencies which are in accordance with §2.106 of this
   chapter may be authorized for use by stations in the Fixed Public and Fixed
   Public Press Services. Selection of specific frequencies within such bands
   shall be made by the applicants therefor. After an application has been
   filed with the Commission for a particular frequency, its availability for
   assignment as requested will be determined by a study of the probabilities
   of  interference to and from existing services assigned on the same or
   adjacent frequencies and, if necessary, by coordination with other agencies
   utilizing frequencies in these ranges. The applicant will be notified of the
   results of such study and coordination. All new assignments of frequencies
   may be made subject to certain conditions as may be required to minimize the
   possibility of harmful interference to existing services.

   (b) In order to minimize possible harmful interference at the National Radio
   Astronomy Observatory site located at Green Bank, Pocahontas County, West
   Virginia, and at the Naval Radio Research Observatory site at Sugar Grove,
   Pendleton County, West Virginia, any applicant for a station authorization
   other than mobile, temporary base, temporary fixed, Personal Radio, Civil
   Air  Patrol, or Amateur seeking a station license for a new station, a
   construction permit to construct a new station or to modify an existing
   station license in a manner which would change either the frequency, power,
   antenna height or directivity, or location of such a station within the area
   bounded by 39°15' N. on the north, 78°30' W. on the east, 37°30' N. on the
   south  and  80°30'  W.  on  the west shall, at the time of filing such
   application  with  the Commission, simultaneously notify the Director,
   National Radio Astronomy Observatory, P. O. Box No. 2, Green Bank, West
   Virginia, 24944, in writing, of the technical particulars of the proposed
   station. Such notification shall include the geographical coordinates of the
   antenna, antenna height, antenna directivity if any, proposed frequency,
   type of emission, and power. In addition, the applicant shall indicate in
   his application to the Commission the date notification was made to the
   Observatory. After receipt of such applications, the Commission will allow a
   period of twenty (20) days for comments or objections in response to the
   notifications  indicated. If an objection to the proposed operation is
   received during the twenty day period from the National Radio Astronomy
   Observatory for itself or on behalf of the Naval Radio Research Observatory,
   the Commission will consider all aspects of the problem and take whatever
   action is deemed appropriate.

   (c) [Reserved]

   (d) Protection for Table Mountain Radio Receiving Zone, Boulder County,
   Colorado: Applicants for a station authorization to operate in the vicinity
   of  Boulder  County,  Colorado under this part are advised to give due
   consideration, prior to filing applications, to the need to protect the
   Table Mountain Radio Receiving Zone from harmful interference. These are the
   research  laboratories  of the Department of Commerce, Boulder County,
   Colorado. To prevent degradation of the present ambient radio signal level
   at the site, the Department of Commerce seeks to ensure that the field
   strengths of any radiated signals (excluding reflected signals) received on
   this 728 hectare site (in the vicinity of coordinates 40°07'50" N Latitude,
   105°14'40" W Longitude) resulting from new assignments (other than mobile
   stations) or from the modification or relocation of existing facilities do
   not exceed the following values:
Frequency range Field strength (mV/m) in authorized bandwidth of service
   Power flux density^1(dBW/m^2) in authorized bandwidth of service
Below 540 kHz                                                         10   65.8
540 to 1600 Khz                                                       20   59.8
1.6 to 470 MHz                                                        10 ^265.8
470 to 890 MHz                                                        30 ^256.2
Above 890 MHz                                                          1 ^285.8

   ^1Equivalent values of power flux density are calculated assuming free space
   characteristic impedance of 376.7=120π ohms.

   ^2Space stations shall conform to the power flux density limits at the
   earth's surface specified in appropriate parts of the FCC rules, but in no
   case should exceed the above levels in any 4 kHz band for all angles of
   arrival.

   (1) Advance consultation is recommended particularly for those applicants
   who have no reliable data which indicates whether the field strength or
   power flux density figures in the above table would be exceeded by their
   proposed radio facilities (except mobile stations). In such instances, the
   following is a suggested guide for determining whether coordination is
   recommended:

   (i) All stations within 2.4 kilometers;

   (ii) Stations within 4.8 kilometers with 50 watts or more effective radiated
   power (ERP) in the primary plane of polarization in the azimuthal direction
   of the Table Mountain Radio Receiving Zone;

   (iii) Stations within 16.1 kilometers with 1 kW or more ERP in the primary
   plane of polarization in the azimuthal direction of Table Mountain Receiving
   Zone;

   (iv) Stations within 80.5 kilometers with 25 kW or more ERP in the primary
   plane or polarization in the azimuthal direction of Table Mountain Receiving
   Zone.

   (2) Applicants concerned are urged to communicate with the Radio Frequency
   Management Coordinator, Department of Commerce, Research Support Services,
   NOAA  R/E5X2, Boulder Laboratories, Boulder, CO 80303; telephone (303)
   497–6548, in advance of filing their applications with the Commission.

   (3) The Commission will not screen applications to determine whether advance
   consultation has taken place. However, applicants are advised that such
   consultation  can  avoid objections from the Department of Commerce or
   proceedings to modify any authorization which may be granted which, in fact,
   delivers a signal at the site in excess of the field strength specified
   herein.

   (e) Protection for Federal Communications Commission monitoring stations:

   (1) Applicants in the vicinity of an FCC monitoring station for a radio
   station authorization to operate new transmitting facilities or changed
   transmitting facilities which would increase the field strength produced
   over the monitoring station over that previously authorized are advised to
   give consideration, prior to filing applications, to the possible need to
   protect the FCC stations from harmful interference. Geographical coordinates
   of the facilities which require protection are listed in §0.121(c) of the
   Commission's Rules. Applications for stations (except mobile stations) which
   will produce on any frequency a direct wave fundamental field strength of
   greater than 10 mV/m in the authorized bandwidth of service (−65.8 dBW/m^2
   power flux density assuming a free space characteristic impedance of 120
   ohms) at the referenced coordinates, may be examined to determine extent of
   possible interference. Depending on the theoretical field strength value and
   existing root-sum-square or other ambient radio field signal levels at the
   indicated coordinates, a clause protecting the monitoring station may be
   added to the station authorization.

   (2) In the event that calculated value of expected field exceeds 10 mV/m
   (−65.8 dBW/m^2 ) at the reference coordinates, or if there is any question
   whether field strength levels might exceed the threshold value, advance
   consultation with the FCC to discuss any protection necessary should be
   considered. Prospective applicants may communicate with: Chief, Compliance
   and Information Bureau, Federal Communications Commission, Washington, DC
   20554, Telephone (202) 632–6980.

   (3) Advance consultation is suggested particularly for those applicants who
   have no reliable data which indicates whether the field strength or power
   flux density figure indicated would be exceeded by their proposed radio
   facilities (except mobile stations). In such instances, the following is a
   suggested guide for determining whether an applicant should coordinate:

   (i) All stations within 2.4 kilometers (1.5 statute miles);

   (ii) Stations within 4.8 kilometers (3 statute miles) with 50 watts or more
   average effective radiated power (ERP) in the primary plane of polarization
   in the azimuthal direction of the Monitoring Stations.

   (iii) Stations within 16 kilometers (10 statute miles) with 1 kW or more
   average ERP in the primary plane of polarization in the azimuthal direction
   of the Monitoring Station;

   (iv) Stations within 80 kilometers (50 statute miles) with 25 kW or more
   average ERP in the primary plane of polarization in the azimuthal direction
   of the Monitoring Station;

   (4)  Advance  coordination  for  stations  operating above 1000 MHz is
   recommended  only  where  the proposed station is in the vicinity of a
   monitoring  station  designated  as a satellite monitoring facility in
   §0.121(c) of the Commission's Rules and also meets the criteria outlined in
   paragraphs (e)(2) and (3) of this section.

   (5) The Commission will not screen applications to determine whether advance
   consultation has taken place. However, applicants are advised that such
   consultation can avoid objections from the Federal Communications Commission
   or modification of any authorization which will cause harmful interference.

   (f) Any applicant for a new permanent base or fixed station to be located on
   the islands of Puerto Rico, Desecheo, Mona, Vieques, and Culebra, or for a
   modification of an existing authorization which would change the frequency,
   power,  antenna height, directivity, or location of a station on these
   islands and would increase the likelihood of the authorized facility causing
   interference, shall notify the Interference Office, Arecibo Observatory, HC3
   Box 53995, Arecibo, Puerto Rico 00612, in writing or electronically, of the
   technical  parameters  of the proposal. Applicants may wish to consult
   interference guidelines, which will be provided by Cornell University.
   Applicants who choose to transmit information electronically should e-mail
   to: prcz@naic.edu. 

   (1) The notification to the Interference Office, Arecibo Observatory shall
   be made prior to, or simultaneously with, the filing of the application with
   the Commission. The notification shall state the geographical coordinates of
   the antenna (NAD–83 datum), antenna height above ground, ground elevation at
   the antenna, antenna directivity and gain, proposed frequency and FCC Rule
   Part, type of emission, effective radiated power, and whether the proposed
   use is itinerant. Generally, submission of the information in the technical
   portion  of  the  FCC license application is adequate notification. In
   addition, the applicant shall indicate in its application to the Commission
   the date notification was made to the Arecibo Observatory.

   (2)  After receipt of such applications, the Commission will allow the
   Arecibo  Observatory a period of 20 days for comments or objections in
   response to the notification indicated. The applicant will be required to
   make  reasonable efforts in order to resolve or mitigate any potential
   interference problem with the Arecibo Observatory and to file either an
   amendment to the application or a modification application, as appropriate.
   If  the  Commission  determines  that  an  applicant has satisfied its
   responsibility to make reasonable efforts to protect the Observatory from
   interference, its application may be granted.

   (3)  The  provisions of this paragraph do not apply to operations that
   transmit on frequencies above 15 GHz.

   [ 28 FR 13032 , Dec. 5, 1963, as amended at  42 FR 8329 , Feb. 9, 1977;  42 FR 27894 , June 1, 1977;  44 FR 77167 , Dec. 31, 1979;  50 FR 39002 , Sept. 26,
   1985;  58 FR 44904 , Aug. 25, 1993;  61 FR 8477 , Mar. 5, 1996;  62 FR 55530 ,
   Oct. 27, 1997;  70 FR 31373 , June 1, 2005]

§ 23.21   Communications by international control stations.

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   Stations in the international fixed public control service are authorized to
   communicate between transmitting stations, receiving stations, message
   centers  or control points operating in the international fixed public
   radiocommunication services for the purpose of handling service messages or
   international traffic between these points: Provided, That only traffic
   originating in or destined to points outside the contiguous states may be
   handled. Frequencies in bands designated for international control stations
   in Part 2 of this chapter may be assigned to these stations.

   [ 38 FR 22480 , Aug. 21, 1973]

§ 23.23   Use of frequencies for radio-telegraph communication within the
continental United States.

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   Licensees of point-to-point radiotelegraph stations may use any frequency
   authorized in a station license for communication between designated points
   within  the 48 contiguous states and the District of Columbia upon the
   express condition that the use of any frequency above 5000 kHz shall be
   subject  to the limitation that no interference shall be caused to the
   international service, or to service with Alaska or Hawaii; and in the event
   such interference is caused the licensee shall immediately discontinue the
   use  of  the  frequency or frequencies producing such interference and
   operation thereon may be conducted only at times when such interference will
   not be caused.

§ 23.24   Correspondents and points of communication.

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   Each instrument of authorization issued for fixed public or fixed public
   press service shall authorize communication to the points of communication
   and to the organizations, agencies, or persons specified therein only,
   except as provided by §23.53: Provided, however, That in the event of a
   change in an organization, agency, or person specified or a change in the
   effective control of such organization, agency, or person, the licensee
   shall immediately notify the Commission of such change and shall file an
   application  for  modification of the instrument of authorization: And
   provided  further,  That  where such change is occasioned by reason of
   circumstances beyond the control of the licensee, communication under the
   then outstanding instrument of authorization shall be permitted to continue
   pending consideration of and action upon the application for modification of
   the instrument of authorization.

§ 23.25   Points of communication, limitations.

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   No point of communication will be regularly authorized in any instrument of
   authorization for fixed public or fixed public press service in absence of
   an  adequate showing that public correspondence may be transmitted and
   received from such points, except as provided in §23.53.

§ 23.26   Use of transmitters.

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   The licensee of a point-to-point radiotelegraph or radiotelephone station
   may use any transmitter of the station for transmission upon any frequency
   assigned to the station for communication with any point of communication
   authorized by the station license: Provided, however, That the maximum power
   authorized  for  the specific frequency as shown in the license is not
   exceeded.

§ 23.27   Experimental research.

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   The licensee of a station may be authorized to use a transmitter which is
   licensed for fixed public or fixed public press service for experimental
   research  in  accordance  with the rules and regulations governing the
   experimental service upon the condition that no interference will be caused
   to  the  public  service.  Experimental  (Research)  and  Experimental
   (Developmental) Stations authorized to operate as point-to-point telegraph
   or telephone stations shall comply with the rules governing fixed public
   radio  services  in  addition  to  the rules and regulations governing
   experimental radio services.

§ 23.28   Special temporary authorization.

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   (a)  Requests for special temporary authority must be accompanied by a
   showing that interference will not be caused to the fixed public or fixed
   public press service for which the station is primarily licensed; and, in
   addition, such requests must be accompanied by the following:

   (1)  A  statement  of the call signs, location, and frequencies of the
   transmitting station; The call signs, location, and frequencies of the
   received station; and the type or types of emission to be employed by both
   stations.

   (2) A statement as to whether the frequencies are to be used for contact
   control purposes only.

   (3) A statement of the period for which the temporary authority is desired.

   (4) A statement describing the service which is to be rendered.

   (b) Temporary authorizations of operation not to exceed 180 days may be
   granted under the standards of section 309(f) of the Communications Act
   where extraordinary circumstances so require. Extensions of the temporary
   authorizations for a period of 180 days may also be granted, but the renewal
   applicant bears a heavy burden to show that extraordinary circumstances
   warrant such an extension.

   (c) Each application proposing construction of one or more new antenna
   structures or alteration of the overall height of one or more existing
   antenna structures, where FAA notification prior to such construction or
   alteration is required by part 17 of this chapter, must include the FCC
   Antenna Structure Registration Number(s) for the affected structure(s). If
   no such number has been assigned at the time the application(s) is filed,
   the applicant must state in the application whether the owner has notified
   the FAA of the proposed construction or alteration and applied to the FCC
   for an Antenna Structure Registration Number in accordance with part 17 of
   this chapter. Applications proposing construction of one or more new antenna
   structures or alteration of the overall height of one or more existing
   antenna structures, where FAA notification prior to such construction or
   alteration is not required by part 17 of this chapter, must indicate such
   and, unless the structure is 6.10-meters or less above ground level (AGL),
   must contain a statement explaining why FAA notification is not required.

   [ 48 FR 27253 , June 14, 1983, as amended at  61 FR 4365 , Feb. 6, 1996]

§ 23.29   License period and expiration time.

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   (a) Licenses for stations operating in the fixed public radiocommunications
   services will be issued for a period of 10 years unless otherwise stated in
   the instrument of authorization. The date of expiration of such licenses
   shall be the 1st day of December, and each station license will be issued so
   as to expire at the hour 3 a.m., eastern standard time. Unless otherwise
   ordered, when an application for a new station license is granted within
   three months of the expiration date for licenses of the particular class of
   station involved, the license shall be issued for the unexpired period of
   the current license term and for the full succeeding term. If granted more
   than three months from the normal expiration date, the license shall be
   issued for the unexpired period of the current license term only.

   (b) The Commission reserves the right to grant or renew station licenses in
   these services for a shorter period of time than that generally prescribed
   for such stations if, in its judgment, the public interest, convenience or
   necessity would be served by such action.

   [ 28 FR 13032 , Dec. 5, 1963, as amended at  36 FR 2562 , Feb. 6, 1971;  38 FR 22480 , Aug. 21, 1973;  48 FR 27253 , June 14, 1983]

§ 23.31   Period of construction.

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   Each construction permit for a radio station in the fixed public service
   will specify the date of grant as the earliest date of commencement of
   construction and a maximum of eight months thereafter as the time within
   which construction shall be completed and the station ready for operation,
   unless otherwise determined by the Commission upon proper showing in any
   particular case.

§ 23.32   Equipment and service tests.

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   (a) Upon completion of construction of a radio station in exact accordance
   with the terms of the construction permit, the technical provisions of the
   application therefor and the other applicable provisions of this part and
   prior to filing of application for license, the permittee is authorized to
   test the equipment for a period not to exceed 10 days: Provided, That:

   (1) The engineer in charge of the district in which the station is located
   is notified 2 days in advance of the beginning of tests.

   (2) The Commission may notify the permittee to conduct no tests or may
   cancel, suspend, or change the date of beginning for the period of such
   tests as and when such action may appear to be in the public interest,
   convenience, and necessity.

   (b) When construction and equipment tests are completed in exact accordance
   with the terms of the construction permit, the technical provisions of the
   application therefor, and the other applicable provisions of this part, and
   after an application for station license has been filed with the Commission
   showing the transmitter to be in satisfactory operating condition, the
   permittee is authorized to conduct service tests in exact accordance with
   the terms of the construction permit for a period not to exceed 30 days:
   Provided, That:

   (1) The engineer in charge of the district in which the station is located
   is notified 2 days in advance of the beginning of the tests.

   (2) The Commission reserves the right to cancel such tests or suspend, or
   change the date of beginning for the period of such tests as and when such
   action may appear to be in the public interest, convenience, and necessity
   by notifying the permittee.

   (3) Service tests will not be authorized after the expiration date of the
   construction permit.

   (c) The authorization for tests embodied in paragraphs (a) and (b) of this
   section shall not be construed as constituting a license to operate but as a
   necessary part of the construction.

§ 23.35   Compliance with tariff requirements.

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   No licensee authorized to perform common carrier service by means of radio
   communication shall engage in such service without compliance with all
   statutory provisions and regulations of the Commission relative to the
   filing of tariffs; and nothing contained in this part shall be deemed as a
   waiver or modification of any such statutory provision or regulation.

§ 23.36   Posting of license.

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   The license of a station shall be posted in a conspicuous place in the main
   transmitter building of the station or kept in such building where it is
   readily available for inspection purposes.

§ 23.37   Station identification.

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   (a)  General.  Every  radiotelegraph  or radiotelephone station in the
   International Fixed Public or Fixed Public Press Service shall transmit, as
   provided below, the identifying call sign or other approved identification
   signal on each of its assigned frequencies below 30 MHz on which energy is
   being radiated.

   (b) When required. (1) The call sign assigned to each frequency shall be
   transmitted on that frequency at the beginning and end of each period of use
   of the frequency.

   (2)  During  regular operation on any freuency, the call sign or other
   approved identification signal shall be transmitted at least at hourly
   intervals within the period from 10 minutes before to 10 minutes after each
   hour. If identification during this period would require an interruption in
   the transmission of a radio-photo, a telephone conversation, an addressed
   program or a multiple addressed press message, or a break in the continuity
   of a “conference” or “leased line” type of service, the identifying signal
   shall  be  transmitted at the first break in, at the conclusion of, or
   simultaneously with, the particular transmission as described below.

   (c)  Methods  of  transmission.  (1)  All identifying signals shall be
   transmitted in such a manner as to permit identification without special
   equipment other than communication type receivers, except as provided in
   paragraph (e) of this section. When emissions are being used which are not
   capable of identification without special equipment, the identifying signal
   shall be transmitted by one of the following methods:

   (i) By interrupting the transmission and transmitting the call sign in a
   manner which can be identified without special equipment.

   (ii) By superimposing the call sign or other approved identification signal
   on the emission being transmitted without interrupting the transmission as
   provided for by paragraphs (e) and (f) of this section.

   (d) Emissions to be used. (1) Except as otherwise provided, the following
   emissions shall be used for identification:

   (i) Radiotelegraph stations. The identifying call sign shall be transmitted
   by International Morse code at a speed not to exceed 25 words per minute and
   shall  consist  of the signal “QRA de” followed by the call sign. This
   transmission shall be made at least three times.

   (ii) Radiotelegraph stations using telephone type emissions. When telephone
   type emissions are being used in accordance with §23.11, identification may
   be made by voice and shall consist of announcing three times in English the
   call sign of the frequency being used

   (iii) Radiotelephone stations. The identifying transmission may be made
   utilizing either telegraph or telephone type emissions. When telegraph
   emission is used, the transmission shall be made in International Morse Code
   at a speed not to exceed 25 words per minute and shall consist of the signal
   “QRA de” followed by the call sign. This transmission shall be made at least
   three times. When telephone emission is used, the identification shall
   consist of announcing three times in English the call sign of the frequency
   being used, provided that all privacy or secrecy devices shall be removed
   from the circuit during such transmissions.

   (e) Superimposed identification. Radiotelegraph or radiotelephone stations
   identifying simultaneously with transmission of traffic: call signs or the
   general identification signal described in paragraph (f) of this section may
   be superimposed on the emission being transmitted by any method which will
   make identification possible with communication type receivers provided that
   approval of any such method shall first have been obtained from the Federal
   Communications  Commission.  (Approval  by  the Federal Communications
   Commission  of  any  means  of  identification of complex emissions by
   superimposing identification of regular transmissions will be given upon
   satisfactory completion of coordinated tests thereof by the applicant and
   the Commission's Field Engineering Bureau.) Commission approval may be
   withdrawn  if  at any subsequent time harmful interference to adjacent
   frequencies is caused by the superimposed identification. When superimposed
   identification by call sign is used, the identifying signal shall consist of
   “QTT de (call sign)” transmitted at least three times in International Morse
   Code at a speed not to exceed 25 words per minute.

   (f) General identification signal. When an approved method of superimposed
   identification is used, the identification signal shall consist of “QTT de
   (abbreviated name of company recorded with the Commission) (abbreviated name
   of  station  recorded  with  the  Commission).”  (It is suggested that
   “abbreviated  company name” consist of two to five letters such as the
   initials of the company name and that “abbreviated name of station” consist
   of two or three letters indicating the name of the city where the licensee's
   message center is located. Both of these abbreviations shall be notified to
   the  Commission  before  being  used for identification.) This general
   identification signal shall be transmitted in International Morse Code at a
   speed not to exceed 25 words per minute and may be transmitted continuously
   or intermittently as desired provided that it shall be transmitted for at
   least five minutes total time during the period from 10 minutes before to 10
   minutes after each hour that energy is being radiated on the frequency. The
   same  signal  may be superimposed on all transmissions being made at a
   particular station: Provided, however, That licensed call signs shall be
   transmitted on the frequencies to which they are assigned as often as is
   practicable and reasonable or at least at the beginning and end of each
   period of use of each frequency.

   (g) Identification by printer. Notwithstanding the other provisions of this
   section  with  respect to methods of transmission, when single channel
   start-stop 5 unit code printer equipment is being used, the identifying call
   sign may be transmitted by means of printer signals. When identification is
   made  by  printer  signals,  it shall consist of the call sign for the
   particular frequency being used and shall be made at least three times at a
   speed of approximately 60 words per minute.

§ 23.38   Experimental points of communication, limitations.

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   Experimental (Research) or Experimental (Developmental) stations licensed to
   operate as point-to-point telegraph or telephone stations in the fixed
   public service may communicate only with other experimental stations located
   within  the  continental  limits of the United States (except Alaska):
   Provided, however, That upon application the Commission may authorize such a
   station to communicate with one or more specific points in Alaska, Hawaii,
   possessions of the United States, or with a specific foreign point. In each
   such case, the Commission will determine the nature of the experimental
   transmissions which may be made to such point of communication.

§ 23.39   Antenna structures.

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   (a) FAA notification. Before the construction of new antenna structures or
   alteration in the height of existing antenna structures is authorized by the
   FCC, a Federal Aviation Administration (FAA) determination of “no hazard”
   may be required. To apply for this determination, the FAA must be notified
   of  the  planned  construction. Criteria used to determine whether FAA
   notification is required for a particular antenna structure are contained in
   part 17 of this chapter. Applications proposing construction of one or more
   new antenna structures or alteration of the overall height of one or more
   existing  antenna  structures,  where  FAA  notification prior to such
   construction or alteration is not required by part 17 of this chapter, must
   indicate such and, unless the reason is obvious (e.g. structure height is
   less than 6.10 meters AGL) must contain a statement explaining why FAA
   notification is not required.

   (b) Painting and lighting. The owner of each antenna structure required to
   be painted and/or illuminated under the provisions of Section 303(q) of the
   Communications Act of 1934, as amended, shall operate and maintain the
   antenna structure painting and lighting in accordance with part 17 of this
   chapter. In the event of default by the owner, each licensee or permittee
   shall  be  individually responsible for conforming to the requirements
   pertaining to antenna structure painting and lighting.

   (c)  Antenna  Structure  Registration  Number.  Applications proposing
   construction of one or more new antenna structures or alteration of the
   overall height of one or more existing structures, where FAA notification
   prior to such construction or alteration is required by part 17 of this
   chapter, must include the FCC Antenna Structure Registration Number(s) for
   the affected structure(s). If no such number has been assigned at the time
   the  application is filed, the applicant must state in the application
   whether or not the antenna structure owner has notified the FAA of the
   proposed construction or alteration and applied to the FCC for an Antenna
   Structure Registration Number in accordance with part 17 of this chapter for
   the antenna structure in question.

   [ 61 FR 4366 , Feb. 6, 1996]

§ 23.40   [Reserved]

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§ 23.41   Quarterly report of frequency usage.

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   (a)  Transmitted frequencies. Each licensee in the international fixed
   radio-communication services shall submit a report of frequency usage for
   all authorized frequencies below 30 MHz for each station. If more than one
   station is operated from a common control point, reports for the stations
   may be combined into one. This report shall be due 40 days after the close
   of each calendar quarter and shall contain the following information: Each
   frequency assigned to the station or stations and the number of hours it was
   used during the quarter to each point of communication for each class of
   service rendered (such as telegraph, telephone, program, or radiophoto), the
   types of emission normally used to each point of communication, and the
   total hours each frequency was used.

   (b) Received frequency report. Upon specific request by the Commission,
   licensees in the international fixed public radiocommunication services
   shall furnish promptly the following information regarding frequencies
   received  from  all points of communication: All frequencies received,
   including call signs, location of transmitting station, type and bandwidth
   of emission normally employed, point of reception, and a symbol from the
   following table indicating the amount of usage of the particular received
   frequency.
   Symbol Usage
   D Daily regular use during business days.
   O Occasional use; not used daily, but offered frequently when required by
   propagation or operational conditions.
   S Seldom received; where records indicate light use during the past year.
   L Limited use; limited by solar activity to a part of the solar cycle or to
   a part of each year.

   The following criteria shall be used to determine whether or not a frequency
   shall be reported as received:

   (1)  Report  all  frequencies  regularly  used during the period under
   consideration.

   (2) Report frequencies received consistently during a substantial part of
   any cyclical change in frequency usefulness even though they may be unused
   for considerable periods of time during another part of the cycle.

   (3) Do not report any frequency, the use of which is known to have been
   discontinued or transferred to another operation by a foreign correspondent.

   (4) Do not report any frequency which has been inactive for a period of 6
   months or longer, except as indicated in paragraph (b)(2) of this section.

   [ 38 FR 22480 , Aug. 21, 1973]

§ 23.42   License, simultaneous modification and renewal.

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   When an application is granted by the Commission necessitating the issuance
   of a modified license less than 60 days prior to the expiration date of the
   license  sought to be modified, and an application for renewal of said
   license  is granted subsequent or prior thereto (but within 30 days of
   expiration of the present license) the modified license as well as the
   renewal license shall be issued to conform to the combined action of the
   Commission.

§ 23.43   Maintenance tests of licensed stations.

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   Station licensees are authorized to carry on such routine tests as may be
   required for the proper maintenance of the stations: Provided, That the
   tests shall be so conducted as not to cause interference with the service of
   other stations.

§ 23.44   Station inspection.

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   The licensee of any radio station shall make the station available for
   inspection by representatives of the Commission at any reasonable hour.

§ 23.45   Operator license, posting of.

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   The original license of each station operator shall be posted at the place
   where he is on duty.

§ 23.46   Operators, class required and general duties.

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   (a) The operation and control of all transmitting apparatus licensed at a
   station in the international fixed public radiocommunication services shall
   be carried on only by a person holding a valid operator license issued by
   the Commission, except as provided in other paragraphs of this section.

   (b) Classes of operator licenses required are as follows:

   (1) Radiotelegraph stations: Radio-telegraph or Radiotelephone first- or
   second-class license: Provided, however: 

   (i)  If  manual  morse  code  keying  is  used for transmitting public
   correspondence, the person manipulating the telegraph key shall be the
   holder  of  a radio-telegraph first- or second-class license except as
   provided by paragraph (b)(1)(iv) of this section;

   (ii)  If  manual  morse  code  keying is used only for the purposes of
   identification or for sending service messages, the person manipulating the
   telegraph key shall be the holder of a radiotelegraph third-class permit or
   higher class of radiotelegraph license except as provided by paragraph
   (b)(1)(iv) of this section;

   (iii) If automatic keying equipment is used, the operator of such equipment
   may send short service signals (requests for repeats, etc.) by manual morse
   code without being the holder of a radio operator license.

   (iv) Unlicensed telegraph operators of appropriate skill as determined by
   the  radio  station  licensee  may  manipulate  the  telegraph  key of
   radiotelegraph stations provided that properly licensed radiotelegraph
   operators are on duty at the transmitting station or authorized remote
   control point and that such licensed operators are fully responsible for the
   proper operation of the transmitting equipment.

   (2) Radiotelephone stations: Radiotelephone first- or second-class license:
   Provided,  however,  that,  if manual morse code keying is employed in
   accordance with §23.12, the person manipulating the telegraph key shall be
   the holder of a valid radiotelegraph third-class permit or higher class of
   radiotelegraph license.

   (3) Radiotelegraph-Radiotelephone stations: Provisions under paragraph
   (b)(1) of this section are applicable.

   (4) International control stations: Radiotelegraph or radiotelephone first-
   or second-class license.

   (c) One or more licensed operators of the grade specified in paragraph (b)
   of  this  section shall be on duty at the place where the transmitting
   apparatus is located and in actual charge thereof when it is being operated:
   Provided, however, That:

   (1) In case of stations in these services operating on frequencies above 30
   MHz, the Commission may authorize unattended operation upon application
   therefor and showing that the equipment is so designed and constructed as to
   make such operation feasible. When such unattended operation is authorized,
   properly licensed operators shall be on duty at a terminal of the system of
   which the unattended station or stations are a part or shall be available on
   call to perform necessary maintenance duties.

   (2) In the case of a station where remote control is used, the Commission
   may grant authority to employ an operator or operators at the control point
   in lieu of the place where the transmitting apparatus is located, provided
   that the following conditions are complied with:

   (i) The transmitter shall be so installed and protected that it is not
   accessible to other than duly authorized persons.

   (ii) A device shall be provided at the remote control point which gives a
   continuous visual indication whenever the control circuits have been placed
   in a condition to activate the radio transmitting apparatus.

   (iii)  Provision  shall  be  made to monitor aurally all transmissions
   originating under control of the responsible operator at the remote point.

   (iv) The radiation of the transmitter shall be suspended immediately when
   there is a deviation from the terms of the station license or applicable
   provisions of this chapter.

   (v)  When remote control of a transmitter is performed from a separate
   location such as a message center or telephone exchange and manual morse
   code keying is not used, the operator(s) at that point need not be licensed
   by the Commission provided that licensed operator(s) are on duty at the
   transmitter location or authorized remote control point at all times that
   the station is in operation, and they are fully responsible for the proper
   operation of the transmitting equipment. If manual morse code keying is used
   at  a remote control point, the provisions of paragraph (b)(1) of this
   section shall apply.

   (3) When a radio station is radiating, all adjustments or tests during or
   coincident  with  the installation and servicing or maintenance of the
   transmitter and its associated equipment which may affect the quality of
   transmission or possibly cause the station radiation to exceed the limits
   specified in its instrument of authorization or in the rules pertaining to
   such  station  shall be made by or under the immediate supervision and
   responsibility  of  a  person holding the proper license, who shall be
   responsible  for  the  proper  functioning  of the radio facilities. A
   radiotelephone station must be under the supervision of a person holding a
   radiotelephone or radiotelegraph first- or second-class license, and a
   radiotelegraph station must be under the supervision of a person holding a
   radiotelegraph first- or second-class license.

   (4) When a radio station is not radiating, persons of appropriate technical
   skill, who are not licensed radio operators, may perform the functions
   described in paragraph (c)(3) of this section without direct supervision
   after having been authorized to do so by the responsible licensed operator
   under whose immediate supervision the facilities shall thereafter initially
   be placed in operation and be determined to be operating properly.

   [ 38 FR 22480 , Aug. 21, 1973]

§ 23.47   Station records.

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   (a) Station records shall be kept in an orderly manner, and in such detail
   that the data required is readily available. Key letters, abbreviations, or
   symbols may be used if proper meaning or explanation is set forth in the
   record.

   (b)  Each  entry in the records of a station shall be made by a person
   qualified to do so and having actual knowledge of the facts to be recorded,
   and each entry shall clearly identify the person making the entry. Each
   entry or group of entries shall be certified by the signature of the person
   or persons responsible: Provided, That each physical page contain such
   certification: And provided further, That any such group of entries contain
   entries made only during a single daily period of duty.

   (c) No record or portions thereof shall be erased, obliterated, or willfully
   destroyed within the required retention period. Any necessary correction may
   be made only by the person originating the entry, who shall strike out the
   erroneous portion, initial the corrections made, and indicate the date of
   correction.

   (d) The records required by this part shall be retained for a period of at
   least 1 year: Provided, that: 

   (1) Records involving communications incident to a disaster or which include
   communications  incident  to,  or involved in, an investigation by the
   Commission and concerning which the licensee has knowledge shall be retained
   by the licensee until specifically authorized in writing by the Commission
   to destroy them.

   (2) Records incident to or involved in any claim or complaint of which the
   licensee has knowledge shall be retained by the licensee until such claim or
   complaint has been fully satisfied or until the same has been barred by
   statute limiting the time for the filing of suit upon such claim.

   [ 38 FR 22481 , Aug. 21, 1973]

§ 23.48   Content of station records.

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   (a) For each station in the services under this part, except stations in the
   international fixed public control service, the licensee shall maintain a
   technical log of the station operating showing:

   (1) Signature of each licensed operator responsible for the operation of the
   transmitting equipment and an indication of his hours of duty.

   (2)  Hours  of  use  of each frequency assignment and type of emission
   indicating time of beginning and end of each period of operation and points
   of communication to which each frequency is used (or area if service is
   pursuant to §23.53).

   (3) Hours of use of each transmitter indicating time of beginning and end of
   each period of operation.

   (4) Power input to the final stage of each transmitter.

   (5) Dates and results of each frequency measurement.

   (b) For stations in the international fixed public control service, the
   licensee shall maintain a technical log of the station operating showing:

   (1)  Normal hours of operation and dates and times of interruptions to
   service.

   (2) Dates and results of each frequency measurement.

   (3)  When service or maintenance duties are performed, the responsible
   operator shall sign and date the station record giving pertinent details of
   all duties performed by him or under his supervision; his name and the
   class, serial number, and date of expiration of his license.

   (c) For each station having an antenna structure which is required to be
   obstruction-lighted, appropriate entries shall be made in the station's
   technical log as required by §23.39.

   [ 38 FR 22481 , Aug. 21, 1973]

§ 23.49   Discontinuance of operation.

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   The  licensee of each fixed radio station except stations operating in
   Alaska, shall notify the Engineer in Charge of the district where such
   station is located of any of the following changes in the status of such
   station at least two days before such change: (a) Temporary discontinuance
   of operation for a period of ten days or more; (b) the date of resumption of
   operation after temporary discontinuance of operation for a period of ten
   days or more; (c) permanent discontinuance of operation: Provided, however,
   Where any such discontinuance of operation is not voluntary and results from
   causes beyond the control of the licensee, notice thereof shall be given not
   later than two days after such discontinuance of operation. In all cases of
   permanent discontinuance of operation the licensee shall, in addition to
   notifying the engineer of intention to discontinue operation, immediately
   forward  the  station  license  to the Washington, D.C., office of the
   Commission for cancellation.

   [ 28 FR 13002 , Dec. 5, 1963, as amended at  30 FR 7176 , May 28, 1965;  35 FR 10447 , June 26, 1970. Redesignated at  38 FR 22481 , Aug. 21, 1973]

§ 23.50   Place of filing application; fees and number of copies.

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   (a) Standard numbered forms applicable to the international fixed public
   radiocommunication services discussed within the subpart are as follows:
   Form No. Description
   403 Application for radio station license or modification thereof.
   405 Application for renewal of radio station license in specified services.
   407 Application for radio station construction permit.
   408  Application  for temporary authorization in addition to authority
   contained in license.
   701 Application for additional time to construct radio station.
   702 Application for consent to assignment of radio station construction
   permit or license (for stations in services other than broadcast).
   704 Application for consent to transfer of control of corporation holding
   common carrier radio station construction permit or license.
   714  Supplement  to  application  for  new  or  modified radio station
   authorization (concerning antenna structure notification to FAA).

   These forms may be obtained from the Secretary, Federal Communications
   Commission,  Washington,  DC  20554,  or  from any of the Commission's
   engineering field offices, the addresses of which are listed in §0.121(a) of
   this chapter.

   (b)  Every  application  for  a  radio  station  authorization and all
   correspondence relating thereto shall be submitted to the Commission's
   office at Washington, DC 20554. Applications requiring fees as set forth at
   part 1, subpart G of this chapter must be filed in accordance with §0.401(b)
   of the rules.

   (c) Unless otherwise specified in a particular case, or for a particular
   form, each application, including exhibits and attachments thereto, shall be
   filed in duplicate.

   (d) Each application shall be accompanied by a fee prescribed in subpart G
   of part 1 of this chapter.

   [ 38 FR 22481 , Aug. 21, 1973, as amended at  52 FR 5294 , Feb. 20, 1987;  52 FR 10230 , Mar. 31, 1987]

§ 23.51   Addressed program material.

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   (a) Stations operating in the fixed public service and in the fixed public
   press service may be authorized to transmit addressed program material to a
   fixed point, or points, outside the 48 contiguous States and the District of
   Columbia, specifically named in the instrument of authorization granted to
   the licensee, intended for broadcast only by a broadcast station. Any such
   authorization shall be subject to the condition that no interference is
   caused to the authorized regular service of the station as defined by §23.8.

   (b) Such stations may also, upon proper application therefor, be authorized
   to transmit addressed program material to any such fixed point in South or
   Central America for simultaneous interception and broadcast by a broadcast
   station at one or more additional points in the same general area upon a
   showing that public message service to such fixed point of communication
   will  not  be unduly impaired. Application for such authority shall be
   submitted not less than 10 days prior to the proposed date of the first
   interception. Such application shall show, in addition to the proposed
   intercept and broadcast points, the South or Central American station or
   stations over which the program will be broadcast, a full description of the
   arrangements made for such intercept and broadcast, and the period for which
   such authority is requested. Authorizations will be limited to the period
   for  which  arrangements for broadcasting by South or Central American
   stations have been made and in no event will extend beyond the term of the
   point-to-point station license.

§ 23.52   Mobile stations, transmission simultaneously to.

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   A point-to-point telegraph station, in addition to the fixed points of
   communication specified in an instrument of authorization, may be authorized
   to communicate simultaneously with mobile stations for the transmission of
   press material destined primarily to fixed points.

§ 23.53   Addressed press and meteorological services.

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   (a) The licensee of a station in the fixed public or fixed public press
   service  may be authorized to transmit, without coordinated reception,
   addressed press messages (including press facsimile and photographs) and
   weather maps, charts and photographs for reception at overseas or foreign
   points   by   meteorological  organizations  by  facsimile  and  radio
   phototelegraphy, to one or more persons at one or more fixed points not
   specifically named in its license: Provided, however, That the licensee,
   upon institution of addressed press service to any point, shall promptly
   notify the Commission of the following:

   (1) The name and location of the person subscribing to such service.

   (2) The date of institution of such service, and

   (3)  The location of the licensee's station from which such service is
   transmitted.

   Any authority, granted under this paragraph, to transmit addressed press
   messages to any person or to any point may be terminated by the Commission
   upon notice to the licensee within 30 days after notification of institution
   of service to such person or point is filed by the licensee.

   (b) In the event of the deletion of service to any point or to any person or
   any change with respect to the facts reported under paragraph (a) (1) or (3)
   of this section, the licensee shall promptly notify the Commission of such
   deletion or change and the date thereof.

   (c) On or before the first day of February and the first day of August of
   each year, the licensee shall submit, for each of its stations authorized to
   render  addressed  press service in accordance with provisions of this
   section, a recapitulative list, as of the first day of January and the first
   day of July respectively of that year, containing the following:

   (1) The name and location of each person subscribing to such service, and

   (2) The date of institution of such service to each person at each point.

   [ 28 FR 13032 , Dec. 5, 1963, as amended at  36 FR 2562 , Feb. 6, 1971]

§ 23.54   Use of double sideband radiotelephone.

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   Use of double sideband radiotelephone transmissions, on frequencies below 30
   MHz, shall be held to a minimum with a view towards discontinuance of such
   operations  as  soon  as  possible.  Except in cases where the foreign
   correspondent is unable to receive single sideband transmissions, double
   sideband radiotelephone shall not be transmitted after January 1, 1965.

§ 23.55   Equal employment opportunities.

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   (a) General policy. Equal opportunity in employment shall be afforded by all
   common carrier licensees or permittees to all qualified persons, and no
   personnel shall be discriminated against in employment because of sex, race,
   color, religion, or national origin.

   (b) Equal employment opportunity program. Each licensee or permittee shall
   establish,  maintain,  and carry out, a positive continuing program of
   specific practices designed to assure equal opportunity in every aspect of
   employment policy and practice. Under the terms of its program, a licensee
   or permittee shall:

   (1)  Define the responsibility of each level of management to insure a
   positive  application  and vigorous enforcement of the policy of equal
   opportunity, and establish a procedure to review and control managerial and
   supervisory performance.

   (2)  Inform its employees and recognized employee organizations of the
   positive equal employment opportunity policy and program and enlist their
   cooperation.

   (3) Communicate its equal employment opportunity policy and program and its
   employment needs to sources of qualified applicants without regard to sex,
   race, color, religion, or national origin, and solicit their recruitment
   assistance on a continuing basis.

   (4) Conduct a continuing campaign to exclude every form of prejudice or
   discrimination based upon sex, race, color, religion, or national origin,
   from the licensees' or permittees' personnel policies and practices and
   working conditions.

   (5) Conduct a continuing review of job structure and employment practices
   and adopt positive recruitment, training, job design and other measures
   needed in order to insure genuine equality of opportunity to participate
   fully in all organizational units, occupations and levels of responsibility.

   (c) Additional information to be furnished to the Commission. (1) Equal
   Employment Programs to be filed by common carrier licensees or permittees.

   (i)  All  licensees or permittees will file a statement of their equal
   employment opportunity program not later than December 17, 1970, indicating
   specific  practices to be followed in order to assure equal employment
   opportunity on the basis of sex, race, color, religion, or national origin
   in such aspects of employment practices as regards recruitment, selection,
   training, placement, promotion, pay, working conditions, demotion, layoff,
   and termination.

   ( a ) Any changes or amendments to existing programs should be filed with
   the Commission on April 1 of each year thereafter.

   ( b ) If a licensee or permittee has fewer than 16 full-time employees, no
   such statement need be filed.

   (2) The program should reasonably address itself to such specific areas as
   set  forth  below, to the extent that they are appropriate in terms of
   licensee size, location, etc.

   (i) To assure nondiscrimination in recruiting. ( a ) Posting notices in the
   licensee's or permittee's offices informing applicants for employment of
   their equal employment rights and their right to notify the Equal Employment
   Opportunity Commission, the Federal Communications Commission, or other
   appropriate  agency.  Where  a  substantial  number  of applicants are
   Spanish-surnamed Americans such notice should be posted in Spanish and
   English.

   ( b ) Placing a notice in bold type on the employment application informing
   prospective employees that discrimination because of sex, race, color,
   religion, or national origin is prohibited and that they may notify the
   Equal  Employment  Opportunity  Commission, the Federal Communications
   Commission  or other appropriate agency if they believe they have been
   discriminated against.

   ( c ) Placing employment advertisements in media which have significant
   circulation among minority-group people in the recruiting area.

   (  d  )  Recruiting  through  schools  and  colleges  with significant
   minority-group enrollments.

   ( e ) Maintaining systematic contacts with minority and human relations
   organizations, leaders, and spokesmen to encourage referral of qualified
   minority or female applicants.

   ( f ) Encouraging present employees to refer minority or female applicants.

   ( g ) Making known to the appropriate recruitment sources in the employer's
   immediate  area  that  qualified minority members are being sought for
   consideration whenever the licensee hires.

   (ii) To assure nondiscrimination in selection and hiring. ( a ) Instructing
   personally those on the staff of the licensee or permittee who make hiring
   decisions that all applicants for all jobs are to be considered without
   discrimination.

   ( b ) Where union agreements exist, cooperating with the union or unions in
   the development of programs to assure qualified minority persons or females
   of  equal  opportunity  for  employment,  and  including  an effective
   nondiscrimination clause in new or renegotiated union agreements.

   ( c ) Avoiding use of selection techniques or tests which have the effect of
   discriminating against minority groups or females.

   (iii) To assure nondiscriminatory placement and promotion. (a ) Instructing
   personally those of the licensee's or permittee's staff who make decisions
   on placement and promotion that minority employees and females are to be
   considered without discrimination, and that job areas in which there is
   little  or  no minority or female representation should be reviewed to
   determine whether this results from discrimination.

   ( b ) Giving minority groups and female employees equal opportunity for
   positions which lead to higher positions. Inquiring as to the interest and
   skills of all lower-paid employees with respect to any of the higher-paid
   positions, followed by assistance, counseling, and effective measures to
   enable employees with interest and potential to qualify themselves for such
   positions.

   (  c ) Reviewing seniority practices to insure that such practices are
   nondiscriminatory and do not have a discriminatory effect.

   ( d ) Avoiding use of selection techniques or tests, which have the effect
   of discriminating against minority groups or females.

   (iv) To assure nondiscrimination in other areas of employment practices. ( a
   ) Examining rates of pay and fringe benefits for present employees with
   equivalent duties, and adjusting any inequities found.

   ( b ) Proving opportunity to perform overtime work on a basis that does not
   discriminate against qualified minority group or female employees.

   (d) Report of complaints filed against licensees and permittees. (1) All
   licensees or permittees shall submit an annual report to the FCC no later
   than  May  31 of each year indicating whether any complaints regarding
   violations by the licensee or permittee of equal employment provisions of
   Federal, State, Territorial, or local law have been filed before any body
   having competent jurisdiction.

   (i) The report should state the parties involved the date filing, the courts
   or agencies before which the matters have been heard, the appropriate file
   number (if any), and the respective disposition or current status of any
   such complaints.

   (ii) Any licensee or permittee who has filed such information with the EEOC
   need not do so with the Commission, if such previous filing is indicated.

   (e) Complaints of violations of Equal Employment Programs. (1) Complaints
   alleging employment discrimination against a common carrier licensee will be
   considered by the Commission in the following manner:

   (i) If a complaint raising an issue of discrimination is received against a
   licensee or permittee who is within the jurisdiction of the EEOC, it will be
   submitted to that agency. The Commission will maintain a liaison with that
   agency  which  will keep the Commission informed of the disposition of
   complaints filed against any of the common carrier licensees.

   (ii) Complaints alleging employment discrimination against a common carrier
   licensee of permittee who does not fall under the jurisdiction of the EEOC
   but is covered by appropriate enforceable State law, to which penalties
   apply, may be submitted by the Commission to the respective State agency.

   (iii) Complaints alleging employment discrimination against a common carrier
   licensee or permittee who does not fall under the jurisdiction of the EEOC
   or an appropriate State law, will be accorded appropriate treatment by the
   FCC.

   (iv) The Commission will consult with the EEOC on all matters relating to
   the  evaluation  and determination of compliance by the common carrier
   licensees or permittees with the principles of equal employment as set forth
   herein.

   (2) Complaints indicating a general pattern of disregard of equal employment
   practices which are received against a licensee or permittee who is required
   to file an employment report to the Commission under §1.815(a) of this
   chapter will be investigated by the Commission.

   (f) Records available to public —(1) Commission records. A copy of every
   annual employment report, equal employment opportunity program, and reports
   on complaints regarding violation of equal employment provisions of Federal,
   State, Territorial, or local law, and copies of all exhibits, letters, and
   other  documents  filed  as  part thereof, all amendments thereto, all
   correspondence  between  the  permittee or licensee and the Commission
   pertaining to the reports after they have been filed and all documents
   incorporated therein by reference, are open for public inspection at the
   offices of the Commission.

   (2) Records to be maintained locally for public inspection by licensees or
   permittees  —(i)  Records to be maintained. Each licensee or permittee
   required to file annual employment reports, equal employment opportunity
   programs, and annual reports on complaints regarding violations of equal
   employment provisions of Federal, State, Territorial, or local law shall
   maintain for public inspection, in the same manner and in the same locations
   as required for the keeping and posting of tariffs as set forth in §61.72 of
   this chapter, a file containing a copy of each such report and copies of all
   exhibits,  letters,  and  other  documents  filed as part thereto, all
   correspondence  between  the  permittee or licensee and the Commission
   pertaining to the reports after they have been filed and all documents
   incorporated therein by reference.

   (ii) Period of retention. The documents specified in paragraph (f)(2)(i) of
   this section shall be maintained for a period of 2 years.

   [ 35 FR 12894 , Aug. 14, 1970, as amended at  36 FR 3119 , Feb. 18, 1971.
   Redesignated at  38 FR 22481 , Aug. 21, 1973]
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