Config: Tx  Fec - Comtech EF Data CDM-625 Installation And Operation Manual

CDM-625 Advanced Satellite Modem
Front Panel Operation
Selection
Nom-Pwr (Nominal Power)
Max-Pwr (Maximum Power)
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
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
parentheses), and then press ENTER. The choices are:
► None (i.e., uncoded)
► Seq (Sequential)
► TPC (Turbo)
(Hardware option)
► VFEC
(VersaFEC Hardware option)
Function
The output level reverts to the nominal power level set under Manual.
The output level changes to the maximum permitted.
◄ ► arrow keys to select a digit to edit, and then use
arrow keys to select an available Encoder option (shown in
▲▼
► Vit (Viterbi)
► TCM (Trellis Coded Modulation)
► LDPC (Low Density Parity
► ULL (Ultra-Low Latency)
5–15
()
8-PSK Rate 2/3 only (FAST option)
Check) (Hardware option)
(VersaFEC Hardware option)
Revision 13
MN-CDM625