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CDM-Qx Satellite Modem Revision 5
Front Panel Operation MN/CDMQx.IOM
5–22
(ConfigTxPwrCombined) – COMBINED TRANSMIT POWER
The combined power adjusts the level after all modulators in the chassis have been
combined. It has a range of –5 dBm to +5 dBm. This level is fixed, and is not adjusted by
AUPC.
(ConfigTxScram) – SCRAMBLER
The options are:
Default-On
the appropriate scrambler type is automatically selected
IESS-315-On
this only applies when Turbo is installed and has been selected as the FEC
type
Off
No scrambling
As before, the options are displayed all of the time, but the ◄ ► arrow keys will force
the cursor to skip past an unavailable choice.
The default scrambler types are:
Viterbi, no framing: ITU V.35 (Intelsat variant)
Viterbi, EDMAC frame: Comtech proprietary, frame synchronized
Viterbi + R-S or TCM/R-S: Per IESS-308, frame synchronized
TPC: Comtech proprietary, frame synchronized
(ConfigTxClk) – TX CLOCKING MODE
Select Int (Internal), Ext (External) or Loop-Timed, using the ◄ ► arrow keys, then
press ENT.
Scrambling:Default
-
O
n
IESS-315-On Off (◄ ►,ENT)
Tx Clocking Mode: Int Ext
Loop-Timed ExtLoop (◄ ►,ENT)
Tx Com
b
ined Output Power:
-3.9 dBm (◄ ►,▲ ▼,ENT)
IMPORTANT