Odu: (Lnb) 22K-Tone; Odu: (Lnb) Polarity - Comtech EF Data CDM-740 Installation And Operation Manual

CDM-740 Advanced Satellite Modem
Front Panel Operation
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Satellite frequency = LO frequency +/- modem frequency
Note:
To set the sign for the Terminal Mix, use the ◄ ► arrow keys to navigate to the setting, then use
the arrow keys to edit the Terminal Mix setting as positive [+] or negative [–].
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Note: The RTF: (Receive Terminal Frequency) value is provided on a 'status only' basis.
5.9.1.6

ODU: (LNB) 22K-Tone

Rx LNB 22KHz Tone:
Select the LNB 22KHz Tone as Off or On using the ◄ ► arrow keys, then press ENTER.
5.9.1.7

ODU: (LNB) Polarity

Rx Polarity:
Select the Rx Polarity as Off, Horizontal, or Vertical using the ◄ ► arrow keys, then press
ENTER. Note the following:
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[–] indicates a low side, non-inverting mix.
Off
Horizontal corresponds to 18 volts (or LHCP);
Vertical corresponds to 13 volts (or RHCP).
Off On
Horizontal Vertical
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MN-CDM740
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