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CDM-600L Satellite Modem
DST Setup
RX Side Setup:
Step
No.
30.
Disconnect LNB.
31.
Set the RX Terminal LO (MHz) and MIX (+ or -). The LO frequency is the BUC
local oscillator frequency and the MIX is.
Mix = "-" if the LNB LO > Satellite Frequency
Mix = "+" if the LNB LO < Satellite Frequency
32.
Set Demod Spectrum Invert ON if LNB mix is "-".
33.
Program the satellite frequency under the Rx Terminal Frequency menu
34.
Select 10 MHz Ref = ON (if LNB is external reference unit)
35.
Program LNB Voltage to the correct value (13, 18, or 24 VDC)
36.
LNB Voltage OFF.
37.
Connect LNB.
38.
Program LNB Power = ON
39.
Record the nominal LNB current after the units are warmed up and functioning
normally.
40.
Set the High alarm about 20% higher than nominal
41.
Set the Low alarm about 20% to 40% lower than nominal.
Selection / Programming
18–6
Revision 2
MN/CDM600L.IOM
Menu Location
LNB: MORE
Consult LNB manufacturer's
specifications for LO
Configuration: Rx: Rx-IF
Configuration: Rx: Rx-IF
LNB
LNB
LNB
LNB
Monitor: LNB
LNB
LNB
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