Goto Section: 95.637 | 95.643 | Table of Contents
FCC 95.639
Revised as of October 1, 2011
Goto Year:2010 |
2012
§ 95.639 Maximum transmitter power.
(a) No GMRS transmitter, under any condition of modulation, shall
exceed:
(1) 50 W Carrier power (average TP during one unmodulated RF cycle)
when transmitting emission type A1D, F1D, G1D, A3E, F3E or G3E.
(2) 50 W peak envelope TP when transmitting emission type H1D, J1D,
R1D, H3E, J3E or R3E.
(b) No R/C transmitter, under any condition of modulation, shall exceed
a carrier power or peak envelope TP (single-sideband only) of:
(1) 4 W in the 26-27 MHz frequency band, except on channel frequency
27.255 MHz;
(2) 25 W on channel frequency 27.255 MHz;
(3) 0.75 W in the 72-76 MHz frequency band.
(c) No CB transmitter, under any condition of modulation, shall exceed:
(1) 4 W Carrier power when transmitting emission type A1D or A3E;
(2) 12 W peak envelope TP when transmitting emission type H1D, J1D,
R1D, H3E, J3E or R3E. Each CB transmitter which transmits emission type
H3E, J3E or R3E must automatically prevent the TP from exceeding 12 W
peak envelope TP or the manufacturer's rated peak envelope TP,
whichever is less.
(d) No FRS unit, under any condition of modulation, shall exceed 0.500
W effective radiated power (ERP).
(e) The maximum transmitter output power authorized for LPRS stations
is 100 mW.
(f) In the MedRadio Service for transmitters that are not excepted
under § 95.628(b) from the frequency monitoring requirements of
§ 95.628(a), the maximum radiated power in any 300 kHz bandwidth by
MedRadio transmitters operating at 402-405 MHz, or in any 100 kHz
bandwidth by MedRadio transmitters operating at 401-402 MHz or 405-406
MHz shall not exceed 25 microwatts EIRP. For transmitters that are
excepted under § 95.628(b) from the frequency monitoring requirements
of § 95.628(a), the power radiated by any station operating in 402-405
MHz shall not exceed 100 nanowatts EIRP confined to a maximum total
emission bandwidth of 300 kHz centered at 403.65 MHz. For transmitters
that are excepted under § 95.628(b) from the frequency monitoring
requirements of § 95.628(a), the power radiated by any station
operating in 401-401.85 MHz or 405-406 MHz shall not exceed 250
nanowatts EIRP in any 100 kHz bandwidth and in 401.85-402 MHz shall not
exceed 25 microwatts in the 150 kHz bandwidth. See § § 95.633(e). The
antenna associated with any MedRadio transmitter must be supplied with
the transmitter and shall be considered part of the transmitter subject
to equipment authorization. Compliance with these EIRP limits may be
determined as set forth in § 95.628(g).
(g) The maximum field strength authorized for WMTS stations in the
608-614 MHz band is 200 mV/m, measured at 3 meters. For stations in the
1395-1400 MHz and 1427-1429.5 MHz bands, the maximum field strength is
740 mV/m, measured at 3 meters.
(h) No MURS unit, under any condition of modulation, shall exceed 2
Watts transmitter power output.
(i) DSRCS-OBUs are governed under subpart L of this part, except the
maximum output power for portable DSRCS-OBUs is 1.0 mW. For purposes of
this paragraph, a portable is a transmitting device designed to be used
so that the radiating structure(s) of the device is/are within 20
centimeters of the body of the user.
[ 53 FR 36789 , Sept. 22, 1988; 53 FR 44144 , Nov. 1, 1988. Redesignated
at 61 FR 28769 , 28770, June 6, 1996, and further redesignated at 61 FR 46567 , 46569, Sept. 4, 1996; 74 FR 22708 , May 14, 2009]
Editorial Note: For Federal Register citations affecting § 95.639,
see the List of CFR Sections Affected, which appears in the Finding
Aids section of the printed volume and on GPO Access.
Certification Requirements
Goto Section: 95.637 | 95.643
Goto Year: 2010 |
2012
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