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CDM-625 Advanced Satellite Modem
Appendix F
F.3.3.3.2
ODU: LNB:PwrSupply+Ref (Power Supply and Reference)
LNB control/monitor:
PSU-and-10MHz
The modem can supply DC power to an LNB connected to the Type 'N' rear panel Rx connector.
It can also supply a 10 MHz reference for a phase-locked LNB. Use the
PSU-and-10MHz, LO-freq, or PSUmonitor, and then press ENTER.
F.3.3.3.2.1 ODU: LNB:PwrSupply+Ref PSU-and-10MHz
LNB: Voltage=Off
Alarm limits, from 000 to 500 mA
Use the
◄ ►
arrow keys to select Voltage, 10MHz, or Alarm Limits. Then, use the
keys to edit that setting:
Selection
Voltage
10MHz
Alarm Limits
Press ENTER when done.
F.3.3.3.2.2 ODU: LNB:PwrSupply+Ref LO-Freq (Local Oscillator
Frequency)
LNB-LO: Frequency= 00000 MHz
Use the
◄ ►
downconversion, or Mix to set the polarity for the downconversion mix in the LNB.
On the top line – To set the LNB-LO Frequency, use the
and then use the
Entering a non-zero value for LNB LO causes the Rx-IF frequency menu to show LO and Satellite
satellite frequency = LO frequency
frequencies (
Press ENTER when done.
On the bottom line – To set the Mix polarity, use the
indicate a high side, inverting mix) or Lo (to indicate a low side, non-inverting mix).
Press ENTER when done.
LO-freq
Setting
Select Off, 13V, 18V, or 24V
Set the 10MHz Reference as Off or On.
Use the◄ ►arrow keys to select a digit to edit, and then use the ▲▼ arrow keys to
change that digit. Valid range, in mA, is 000 to 500.
Mix= High [-] (Hi,Lo)
arrow keys to select the LNB-LO (Local Oscillator) Frequency for the
arrow keys to change that digit. The valid LO range is 3000 to 65000 MHz.
▲▼
PSUmonitor ()
10MHz:Off (Off,On)
◄ ►
arrow keys to select a digit to edit,
modem frequency
±
arrow keys to set polarity as Hi (to
▲▼
F–12
Revision 13
MN-CDM625
◄ ►
arrow keys to select
()
▲▼
()
).
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