Comtech EF Data CDM-710G - Manual (Page 87)

CDM-710G High-Speed Satellite Modem Revision 1
Front Panel Operation MN-CDM710G
6–11
6.3.1.2 CONFIG: Tx
IMPORTANT
The CDM-710G operates only in DVB-S2 mode.
Tx: FEC Mod Code SymRate
Freq Pwr Scram (E)
Select FEC, Mod, Code, SymRate, Freq, Pwr, or Scram using the W X arrow keys, then press
ENTER
.
(CONFIG:) Tx Æ FEC
Tx FEC:
LDPC + BCH (E)
This is a ‘status only’ message. Press
ENTER
or
CLEAR
to return to the previous menu.
(CONFIG:) Tx
Æ Mod
Tx Modulation: Type Inv
α Pilot Frame (E)
Select Type, Inv, α, Pilot, or Frame using the
W X arrow keys, then press
ENTER
.
If Tx Modulation Æ Type is selected:
Tx Mod: QPSK 8PSK 16QAM
16APSK 32APSK (E)
Use the W X arrow keys to select the Transmit Modulation Type (QPSK, 8PSK, 16APSK, or
32APSK), then press
ENTER
.
Note: While16QAM is displayed in this menu, it is not selectable and not supported in DVB-S2
mode.
If the Tx Modulation selection gives an invalid data rate or symbol rate, the following menu
appears after the error message – it will query the configuration change for a valid configuration:
Cfg TXMod=8PSK TxCR=2/3
TxSR=18.903085 Msps? Y N
If ‘ N ’ (No) is selected, the unit returns to the original configuration. If ‘ Y ’ (Yes) is selected, the
unit is configured with the displayed parameters.