Sec. 95.857  Emission standards.

    (a) All transmissions by each CTS and by each RTU shall use an 
emission type that complies with the following standard for unnecessary 
radiation.
    (b) All spurious and out-of-band emissions shall be attenuated:
    (1) Zero dB on any frequency within the authorized frequency 
segment.
    (2) At least 28 dB on any frequency removed from the midpoint of the 
assigned frequency segment by more than 250 kHz up to and including 750 
kHz;
    (3) At least 35 dB on any frequency removed from the midpoint of the 
assigned frequency segment by more than 750 kHz up to and including 1250 
kHz;
    (4) At least 43 plus 10 log (base 10) (mean power in watts) dB on 
any frequency removed from the midpoint of the assigned frequency 
segment by more than 1250 kHz.
    (c) When testing for type acceptance, all measurements of 
unnecessary radiation are performed using a carrier frequency as close 
to the edge of the authorized frequency segment as the transmitter is 
designed to be capable of operating.
    (d) The resolution bandwidth of the instrumentation used to measure 
the emission power shall be 100 Hz for measuring emissions up to and 
including 250 kHz from the edge of the authorized frequency segment, and 
10 kHz for measuring emissions more than 250 kHz from the edge of the 
authorized frequency segment. If a video filter is used, its bandwidth 
shall not be less than the resolution bandwidth. The power level of the 
highest emission within the frequency segment, to which the attenuation 
is referenced, shall be remeasured for each change in resolution 
bandwidth.