Config: Tx; (Config:) Tx Fec; (Config:) Tx Mod - Comtech EF Data CDM-710G Installation And Operation Manual

CDM-710G High-Speed Satellite Modem
Front Panel Operation
6.3.1.2

CONFIG: Tx

The CDM-710G operates only in DVB-S2 mode.
IMPORTANT
Tx: FEC
Freq Pwr Scram
Select FEC, Mod, Code, SymRate, Freq, Pwr, or Scram using the
.
ENTER
(CONFIG:) Tx
Tx FEC:
LDPC + BCH
This is a 'status only' message. Press
(CONFIG:) Tx
Tx Modulation: Type Inv
α Pilot Frame
Select Type, Inv, α, Pilot, or Frame using the
If Tx Modulation
Tx Mod: QPSK
16APSK 32APSK
Use the arrow keys to select the Transmit Modulation Type (QPSK, 8PSK, 16APSK, or
32APSK), then press
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
TxSR=18.903085 Msps? Y N
N
If ' ' (No) is selected, the unit returns to the original configuration. If '
unit is configured with the displayed parameters.
Mod Code SymRate
(
FEC
(
ENTER
Mod
(
Type is selected:
8PSK 16QAM
(
.
ENTER
TxCR=2/3
E)
E)
or to return to the previous menu.
CLEAR
E)
arrow keys, then press
E)
6–11
Revision 1
MN-CDM710G
arrow keys, then press
.
ENTER
Y
' (Yes) is selected, the