ABC makes the switch to digital
Abstract
The digital satellite-distribution system being completed for the ABC radio network is briefly characterized. Audio programming on 19 channels at 15 kHz is digitized at the studio and transmitted by microwave to the uplink facility for distribution via Satcom I-R to 1800 affiliates with affiliate-owned receivers. A data channel comprising several 32-kbit/sec subchannels operates through network-owned data cards and printers installed in the affiliate ground stations to provide internal communication (to all affiliates, a selected group, or a single station) using soft addresses, data-distribution services for station customers, or the proposed 900-MHz nationwide paging service.
- Publication:
-
Satellite Communications
- Pub Date:
- May 1984
- Bibcode:
- 1984SatCo...8...38P
- Keywords:
-
- Communication Networks;
- Digital Systems;
- Pulse Communication;
- Radio Communication;
- Addressing;
- Channels (Data Transmission);
- Technology Utilization;
- Communications and Radar