A preliminary estimate of the effects of spread-spectrum interference on TV.
Dept.of Commerce, National Telecommunications and Information Administration, 1978 - Performing Arts - 30 pages
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0.l Mbps ADJACENT CHANNEL INTERFERENCE adjacent channel rejection binary chrominance chrominance subcarrier clocking rates Composite of Figures curve cw interference decibels digitized Direct Sequence Chip direct sequence PRN emission spectrum Example of minimum Expanded view FCC recommended protection Federal Communications Commission Figure AD-l Figure l(a Figure l2 frequency band frequency hopping Frequency Offset INTERFERENCE ON TV interference to color interfering signal Juroshek KHz BW laboratory tests land-mobile radio level of interference MHz Figure minimum required signal-to-interference minimum signal-to-interference ratio modulated FM signal multipath noise out-of-band power density PRN Sequence processing gain produce random ratio for VHF recommended protection ratios required signal-to-interference ratio Sequence Chip Rate sequence PRN signals shown in Figure signal-to-noise ratio signals with clocking spectral spectrum analyzer SPECTRUM INTERFERENCE spectrum spreads greater Spread-Spectrum Interference spread-spectrum system surface acoustic wave total power TV receiver TV selectivity TV/FM U.S. DEPARTMENT VHF TV voice modulated FM waveform wideband