CDM-625 Advanced Satellite Modem
Revision 1
Automatic Uplink Power Control (AUPC)
MN-0000036 (Ref MN/CDM625.IOM)
8–4
8.4
Monitoring
The remote demodulator’s value of Eb/No can be monitored at all times, either from the front
panel (
SELECT: Monitor
Æ
AUPC
) or via the remote control interface. The resolution of the
reading is 0.2 dB. For all values greater than or equal to 16 dB, the value 16.0 dB will be
displayed. As long as framing is enabled, the value will still be available, even though AUPC
may be disabled.
Also displayed is the current value of TX power increase. If EDMAC framing is enabled, but
AUPC is disabled, this will indicate 0.0 dB. This value is also available via the remote control
interface.
CAUTION
Comtech EF Data strongly cautions against the use of large values of permitted
power level increase under AUPC control. Users should consider using the
absolute minimum range necessary to improve rain-fade margin.
