Monitoring - Comtech EF Data CDM-570 Installation And Operation Manual

CDM-570/570L Satellite Modem with Optional IP Module
Automatic Uplink Power Control
11.4

Monitoring

The remote demodulator's value of Eb/No can be monitored at all times, either from the
front panel (Monitor, 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, regardless of
the AUPC mode, or framing mix.
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.
11–4
Revision 3
MN/CDM570L.IOM