Goto Section: 74.710 | 74.732 | Table of Contents
FCC 74.731
Revised as of October 1, 2011
Goto Year:2010 |
2012
§ 74.731 Purpose and permissible service.
(a) Television broadcast translator stations and television broadcast
booster stations provide a means whereby the signals of television
broadcast stations may be retransmitted to areas in which direct
reception of such television broadcast stations is unsatisfactory due
to distance or intervening terrain barriers.
(b) Except as provided in paragraph (f) of this section, a television
broadcast translator station or television broadcast booster station
may be used only to receive the signals of a television broadcast
station, another television broadcast translator station, a television
translator relay station, a television intercity relay station, a
television STL station, or other suitable source such as a CARS or
common carrier microwave station, for the simultaneous retransmission
of the programs and signals of a television broadcast station. Such
retransmissions may be accomplished by either:
(1) Reception of the television programs and signals of a television
broadcast station directly through space, conversion to a different
channel by simple heterodyne frequency conversion and suitable
amplification; or,
(2) Modulation and amplification of a video and audio feed, in which
case modulating equipment meeting the requirements of § 74.750(d) shall
be used.
(c) The transmissions of each television broadcast translator station
shall be intended for direct reception by the general public and any
other use shall be incidental thereto. A television broadcast
translator station shall not be operated solely for the purpose of
relaying signals to one or more fixed receiving points for
retransmission, distribution, or further relaying.
(d) The technical characteristics of the retransmitted signals shall
not be deliberately altered so as to hinder reception on conventional
television broadcast receivers.
(e) A television broadcast translator station shall not deliberately
retransmit the signals of any station other than the station it is
authorized by license to retransmit. Precautions shall be taken to
avoid unintentional retransmission of such other signals.
(f) A locally generated radio frequency signal similar to that of a TV
broadcast station and modulated with visual and aural information may
be connected to the input terminals of a television broadcast
translator or low power station for the purposes of transmitting still
photographs, slides and voice announcements. The radio frequency
signals shall be on the same channel as the normally used off-the-air
signal being rebroadcast. When transmitting originations concerning
financial support or public service announcements, connection of the
locally generated signals shall be made automatically either by means
of a time switch or upon receipt of a control signal from the TV
station being rebroadcast designed to actuate the switching circuit.
The switching circuit will be so designed that the input circuit will
be returned to the off-the-air signal within 30 seconds. The connection
for emergency transmissions may be made manually. The apparatus used to
generate the local signal which is used to modulate the translator or
low power station must be capable of producing a visual or aural signal
or both which will provide acceptable reception on television receivers
designed for the transmission standards employed by TV broadcast
stations. The visual and aural materials so transmitted shall be
limited to emergency warnings of imminent danger, to local public
service announcements and to seeking or acknowledging financial support
deemed necessary to the continued operation of the station.
Accordingly, the originations concerning financial support and PSAs are
limited to 30 seconds each, no more than once per hour.
Acknowledgements of financial support may include identification of the
contributors, the size and nature of the contribution and advertising
messages of contributors. Emergency transmissions shall be no longer or
more frequent than necessary to protect life and property.
(g) Low power TV stations may operate under the following modes of
service:
(1) As a TV translator station, subject to the requirements of this
part;
(2) For origination of programming and commercial matter as defined in
§ 74.701(f);
(3) For the transmission of subscription television broadcast (STV)
programs, intended to be received in intelligible form by members of
the public for a fee or charge subject to the provisions of
§ § 73.642(e) and 73.644.
(h) A low power TV station may not be operated solely for the purpose
of relaying signals to one or more fixed receiving points for
retransmission, distribution or relaying.
(i) Low power TV stations are subject to no minimum required hours of
operation and may operate in any of the 3 modes described in paragraph
(g) of this section for any number of hours.
(j) Television broadcast booster stations provide a means whereby the
licensee of a television broadcast station may provide service to areas
of low signal strength in any region within the primary station's Grade
B contour. The booster station may not be located outside the predicted
Grade B of its primary station nor may the predicted Grade B signal of
the television booster station extend beyond the predicted Grade B
contour of the primary station. A television broadcast booster station
is authorized to retransmit only the signals of its primary station; it
shall not retransmit the signals of any other stations nor make
independent transmissions. However, locally generated signals may be
used to excite the booster apparatus for the purpose of conducting
tests and measurements essential to the proper installation and
maintenance of the apparatus.
(k) The transmissions of a television broadcast booster station shall
be intended for direct reception by the general public. Such stations
will not be permitted to establish a point-to-point television relay
system.
(l) After 11:59 pm local time on September 1, 2015, low power
television, TV translators and Class A television stations may no
longer operate any facility in analog (NTSC) mode.
[ 28 FR 13722 , Dec. 14, 1963, as amended at 43 FR 1951 , Jan. 13, 1978;
47 FR 21499 , May 18, 1982; 47 FR 40172 , Sept. 13, 1982; 48 FR 21487 ,
May 12, 1983; 52 FR 31404 , Aug. 20, 1987; 76 FR 44827 , July 27, 2011]
Goto Section: 74.710 | 74.732
Goto Year: 2010 |
2012
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