VSAT frequency source using direct digital synthesizer

Details VSAT frequency source using direct digital synthesizer VSAT frequency source using direct digital synthesizer

1995-09-01

1999-11-30

Urban, Edward F.

Telecommunications

Transmitter

Carrier frequency stabilization

455 76, 455 121, H04B 7155

Patent

active

059958120

ABSTRACT:
A frequency generation device for a satellite communication system composed of a central hub station and a number of remote units. The remote units contain a single synthesizer located in an indoor unit. In this invention, the indoor-located synthesizer is a direct digital synthesizer which modulates the baseband signal and conveys the modulated signal to an outdoor unit for communication between the remote unit and the central hub. In the outdoor unit, the signal is converted directly by a fixed number to a Ku band frequency and transmitted to the central hub.

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