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CDM-Qx Satellite Modem
Front Panel Operation
(Config%Tx%On/Off) – TRANSMIT ON/OFF CONTROL
Tx Output State:
RxTxInhibit Common (◄ ►, ENT)
Select either On, Off, RxTxInhibit, or Common using the ! " arrow keys, then press
ENTER.
When Rx-Tx Inhibit (RTI) is selected, it prevents the TX carrier from being transmitted,
until the demodulator is locked.
To avoid the Tx Carrier from being turned off when the demodulator loses lock for a very
short period of time, the demodulator must be unlocked continuously for a period of 10
seconds before the transmit carrier is inhibited. This time interval is fixed and the user
cannot change it.
IMPORTANT
Selecting Common displays the following submenu:
Tx Common Output State:
Off On
This will turn On or Off all the transmit path – master control for all modulators.
(Config%Tx%Pwr) – TRANSMIT POWER LEVEL MODE
Select the output power level mode, either Manual or AUPC, then press
Selecting Manual displays the following menu:
Output Power Level Mode:
Manual AUPC (◄ ►, ENT)
(Config%Tx%Pwr%Manual) – MANUAL MODE
Tx Output Power Level:
-03.9 dBm
Edit the output power level using the ◄ ► and #$ arrow keys, then press
On
Having this feature enabled does not affect the internal IF Loopback
feature. But, please be aware that if an external IF Loopback is
attempted (connecting an external cable from the Tx IF output to the Rx
IF input), then this will not work! (The Tx carrier cannot turn on until the
demod is locked, and the demod cannot lock, because the TX output is
off. The net result is that the demod will not lock, and the Tx carrier will
not turn on. USE THE RTI FEATURE WITH EXTREME CARE!
(◄ ► ENT)
(◄ ►, ▲ ▼, ENT)
5–17
Off
Revision 6
MN/CDMQx.IOM
.
ENTER
.
ENTER
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