Comtech EF Data CDM-625 - CONFIG: Tx  FEC

CDM-625 Advanced Satellite Modem Revision 13
Front Panel Operation MN-CDM625
5–15
Selection Function
Nom-Pwr (Nominal Power) The output level reverts to the nominal power level set under Manual.
Max-Pwr (Maximum Power) The output level changes to the maximum permitted.
Press ENTER when done.
CONFIG: Tx  Power  Mode  CnC-APC Mode
Chapter 10. Double Talk Carrier-in-Carrier Option
Selecting CnC Automatic Power Control (CnC-APC) mode displays the following menu:
Output Power Mode = CnC-Auto-Power-Control
Level=-25.0dBm MaxPwrIncrease=2.5dB ()
On the bottom line – To edit the power output level and the maximum permitted increase in
power level when in APC Mode, use the
◄ ►arrow keys to select a digit to edit, and then use
the
▲▼ arrow keys to change that digit. Press ENTER when done.
Note that, when APC is in an active state, the power level values display in the bottom left as
‘AUTO’.
5.2.1.3.4 CONFIG: Tx  FEC
Enc=Vit (Vit,Seq,TCM,TPC,LDPC,VFEC,ULL)
Reed-Solomon=On (Off, On) ()
Use the
◄ ►arrow keys to select Encoder or Reed-Solomon / Diff Encoder, and then press
ENTER.
On the top line – Use the
▲▼ arrow keys to select an available Encoder option (shown in
parentheses), and then press ENTER. The choices are:
► None (i.e., uncoded) ► Vit (Viterbi)
► Seq (Sequential)
► TCM (Trellis Coded Modulation)
8-PSK Rate 2/3 only (FAST option)
► TPC
(Turbo)
(Hardware option)
► LDPC
(Low Density Parity
Check) (Hardware option)
► VFEC
(VersaFEC Hardware option)
► ULL (Ultra-Low Latency)
(VersaFEC Hardware option)