Comtech EF Data CDM-425, Installation And Operation Manual

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CDM-425 Advanced Satellite Modem
Revision 0
Front Panel Operation 6–17 MN-CDM-425
On the bottom line – Use the
▲▼ arrow keys to select the action that occurs if the remote
demodulator is unlocked. Use the
▲▼ arrow keys to select a parameter. Valid settings are:
Setting Function
Nom (Nominal Power) The output level reverts to the nominal power level set under Manual.
Max (Maximum Power) The output level changes to the permitted maximum.
Hold The output level is maintained at the value just before the remote demod lost lock.
CONFIG: Tx

Power

Mode

CnC-APC Mode
Appendix F. Double Talk Carrier-in-Carrier Option
When you select CnC Automatic Power Control (CnC-APC) mode, this menu appears as shown:
Output Power Mode=CnC-Auto-Power-Control
Level=-25.0dBm MaxPwrIncrease=2.5dB(

)
On the bottom line – 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, and then use the
▲▼ arrow
keys to change that digit. Press ENTER.
Note that, when APC is in an active state, the power level values display in the bottom left as
‘AUTO’.
6.2.1.3.4 CONFIG: Tx

FEC
Enc=VFEC (VFEC,ULL,VF2L,VF2S)
(

)
Use the
▲▼ arrow keys to select an available Encoder option (shown in parentheses). Press
ENTER . Valid selections are:
► VFEC (VersaFEC)
► VF2L (VersaFEC-2 Long Block)
► ULL (VersaFEC Ultra-Low Latency) ► VF2S (VersaFEC-2 Short Block)