Page 264 - Satellite Communications, Fourth Edition

244 Chapter Eight

Figure 8.2 One possible arrangement for a master antenna TV (MATV) system.

8.4 Community Antenna TV System
The CATV system employs a single outdoor unit, with separate feeds
available for each sense of polarization, like the MATV system, so that
all channels are made available simultaneously at the indoor receiver.
Instead of having a separate receiver for each user, all the carriers are
demodulated in a common receiver-filter system, as shown in Fig. 8.3.
The channels are then combined into a standard multiplexed signal for
transmission over cable to the subscribers.
In remote areas where a cable distribution system may not be
installed, the signal can be rebroadcast from a low-power VHF TV
transmitter. Figure 8.4 shows a remote TV station which employs an