CDM-Qx Satellite Modem

Revision 5

Front Panel Operation

MN/CDMQx.IOM

(Config„ODU„LNB) LNB

If LNB is selected, the following sub-menu is displayed:

LNB: DC-Voltage

10MHz

Alarm

LO Mix

(

►, ENT)

Select Voltage, Power-On/Off, 10MHz, Alarm, LO or Mix, using the ◄ ► arrow keys, then press ENT.

 

Voltage

 

Selects 13 or 18 Volts as the LNB power supply output voltage.

 

10MHz

 

This menu permits the user to turn the 10MHz frequency reference

 

Alarm

 

for the BUC ON or OFF.

 

 

This menu permits the user to define the upper and lower limits for

 

 

 

a current ‘window’. If the measured LNB current falls outside this

 

 

 

window, an alarm is generated.

 

LO

 

This menu permits the user to define the LO frequency used in the

 

 

 

LNB. This is then used in the display of RF frequency in the

 

 

 

Config„Rx„Freq menu.

 

Mix

 

This menu permits the user to define the sense of the frequency

 

 

 

translation – either high-side mix or low-side mix.

(Config„ODU„LNB„Voltage) - LNB VOLTAGE

If Voltage is selected, the following sub-menu is displayed:

LNB DC

Supply Voltage:

Power

Off

(▲▼, ENT)

Edit the value of the LNB supply voltage, using the STarrow keys. The user should then press ENT. The choices are 13 or 18 Volts.

5–50

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Image 104
Mocomtech CDM-QX operation manual Config„ODU„LNB LNB, Config„ODU„LNB„Voltage LNB Voltage, Lnb Dc