Comtech EF Data SDR-54A - Manual (Page 15)

Chapter 1. Introduction
This chapter describes the SDR-54A satellite demodulator, hereinafter referred to as
“the demodulator.”
Two versions of the SDR-54A are available:
• Desktop (Figure 1-1)
• Rack Mount (Figure 1-2)
1.1 Demodulator Functions
For the purposes of this document, a demodulator will consist of a device having the
following functions:
• Perform filtered QPSK or BPSK demodulation from carriers of variable
frequencies/amplitudes.
• Decode the data.
• Descramble the data.
• Provide Terrestrial data interface.
• Provide Monitor and Control interface for remote operation.
• Maintain full functionality of SDM-51, SDM-52, and all their respective
configurations.
1–1