Hardware
large uplink antenna array for transmission
- commonly over ten antennas each over 10m
- Ku-band uplink frequencies: 14-17 GHz
direct broadcast satellite
- high altitude (geosynchronous orbits around 36,000 km)
- large foot print with small number of satellites each with multiple spotbeams
small ‘set-top’ receiver
- small dish size (0.5m - 1.5m)
- Ku-band downlink frequencies: 11-13 GHz
- bandwidth: 40Mb/s (23Mb/s post FEC)