Quorum GRB-200 - Figure 25 - Demodulator Mode Spectrum and AGC Screenshot

GRB-200 Demodulator (GOES-R) OI&M
GRB-200 Demodulator (GOES-R) OI&M
© Copyright 2015, Quorum Communications, Inc.
Revision A.01
32
Demodulator Mode Spectrum and AGC
Figure 25 - Demodulator Mode Spectrum and AGC Screenshot
LH MSA: LHCP demodulator Mode Spectrum and AGC (MSA)
RH MSA: RHCP demodulator Mode Spectrum and AGC
This display is useful to diagnose RF problems by showing the demodulator
mode, 8PSK or QPSK, Spectrum Inversion, NOR (Normal) or INV (Inverted)
and the current AGC voltage.
The GRB Demodulator has a reverse AGC (Automatic Gain Control).
Maximum gain would be set with a voltage of 0.20 volts while higher voltages
represent lower gain.