Goto Section: 95.855 | 95.859 | Table of Contents
FCC 95.857
Revised as of October 1, 2008
Goto Year:2007 |
2009
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 certification, 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.
[ 57 FR 8275 , Mar. 9, 1992, as amended at 63 FR 36611 , July 7, 1998]
Goto Section: 95.855 | 95.859
Goto Year: 2007 |
2009
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