Multichannel radio frequency transmission system to deliver wideband digital data into independent sectorized service areas

摘要: A one-way and two-way multichannel radio frequency transmission system method employing sectorized broadcasting reduces the effective bandwidth of broadcast signal by multiplexing (16) available channels signals (14) into a set formatted independent digital bitstreams, each bitstream including all or portion provided program provider (10). The independant bitstreams are transmitted to transmitter towers using point-to-point (19) methods. transmitting phase modulate (20) amplify generate modulated signals. Each tower includes antenna for (41) service area at different opposite polarity then adjacent areas, so that receives subscriber site (49) demodulates, demulpilexes selects one channel from received signal.