Goto Section: 95.633 | 95.637 | Table of Contents

FCC 95.635
Revised as of
Goto Year:1996 | 1998
Sec. 95.635  Unwanted radiation.

    (a) In addition to the procedures in part 2, the following 
requirements apply to each transmitter both with and without the 
connection of all attachments acceptable for use with the transmitter, 
such as an external speaker, microphone, power cord, antenna, etc.
    (b) The power of each unwanted emission shall be less than TP as 
specified in the applicable paragraph:

                                                                                                
                
------------------------------------------------------------------------------------------------
----------------
               Transmitter                         Emission type                   Applicable pa
ragraphs        
------------------------------------------------------------------------------------------------
----------------
GMRS....................................  A1D, A3E, F1D, G1D, F3E, G3E     (1), (3), (7)        
                
                                           with filtering.                                      
                
                                          A1D, A3E, F1D, G1D, F3E, G3E     (5), (6), (7)        
                
                                           without filtering.                                   
                
                                          H1D, J1D, R1D, H3E, J3E, R3E...  (2), (4), (7)        
                
FRS.....................................  F3E with filtering.............  (1), (3), (7)        
                
                                                                                                
                
                        Note: Filtering refers to the requirement in Sec.  95.635(b) R/C:       
                
                                                                                                
                
27 MHz band.............................  As specified in Sec.  95.629(b)  (1), (3), (7)        
                
72-76 MHz band..........................  As specified in Sec.  95.629(b)  (1), (3), (7), (10), 
(11), (12)      
CB......................................  A1D, A3E.......................  (1), (3), (8), (9)   
                
                                          H1D, J1D, R1D, H3E, J3E, R3E...  (2), (4), (8), (9)   
                
                                          A1D, A3E type accepted before    (1), (3), (7)        
                
                                           September 10, 1976.                                  
                
                                          H1D, J1D, R1D, H3E, J3E, R3E     (2), (4), (7)        
                
                                           type accepted before September                       
                
                                           10, 1986.                                            
                
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----------------

    (c) For transmitters designed to operate in the LPRS, emissions 
shall be attenuated in accordance with the following:
    (1) Emissions for LPRS transmitters operating on standard band 
channels (25 kHz) shall be attenuated below the unmodulated carrier in 
accordance with the following:
    (i) Emissions 12.5 kHz to 22.5 kHz away from the channel center 
frequency: at least 30 dB; and
    (ii) Emissions more than 22.5 kHz away from the channel center 
frequency: at least 43 + 10log(carrier power in watts) dB.
    (2) Emissions for LPRS transmitters operating on extra band channels 
(50 kHz) shall be attenuated below the unmodulated carrier in accordance 
with the following:
    (i) Emissions 25 kHz to 35 kHz from the channel center frequency: at 
least 30 dB; and
    (ii) Emissions more than 35 kHz away from the channel center 
frequency: at least 43 + 10log(carrier power in watts) dB.
    (3) Emissions for LPRS transmitters operating on narrowband channels 
(5 kHz) shall be attenuated below the power (P) of the highest emission, 
measured in peak values, contained within the authorized bandwidth (4 
kHz) in accordance with the following:
    (i) On any frequency within the authorized bandwidth: Zero dB;
    (ii) On any frequency removed from the center of the authorized 
bandwidth by a displacement frequency (fd in kHz) of more 
than 2 kHz up to and including 3.75 kHz: The lesser of 30 + 
20(fd-2) dB, or 55 + 10 log(P), or 65 dB; and
    (iii) On any frequency beyond 3.75 kHz removed from the center of 
the authorized bandwidth: At least 55 + 10 log(P) dB.
    (4) Emissions from AMTS transmitters using a single 250 kHz channel 
shall be attenuated below the unmodulated carrier in accordance with the 
following:
    (i) Emissions from 125 kHz to 135 kHz away from the channel center 
frequency; at least 30 dB; and
    (ii) Emissions more than 135 kHz away from the channel center 
frequency; at least 43 + 10log(carrier power in watts) dB.
[ 53 FR 36789 , Sept. 22, 1988, as amended at  56 FR 15837 , Apr. 18, 1991. 
Redesignated and amended at  61 FR 28769 , 28770, June 6, 1996, and 
further redesignated and amended at  61 FR 46567 , 46568, Sept. 4, 1996]

[[Page 662]]


Goto Section: 95.633 | 95.637

Goto Year: 1996 | 1998
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