Comtech EF Data CDM-625A Installation And Operation Manual page 452

CDM-625A Advanced Satellite Modem
CDM-625A ODU (Transceiver, BUC, LNB) Operation
Selection
Mute
Slope
Press ENTER to save, or CLEAR to cancel and return to the previous menu.
10.3.3.3.3.1.1.2
Rx: Fq=6427.0 MHz
Use the ◄ ► arrow keys to select the setting to edit, and then use the
that setting:
Selection
Fq
Att
Mute
Slope
Press ENTER when done.
10.3.3.3.3.1.1.3
LNA: State=On
Current-Window=50%
Use the ◄ ► arrow keys to select the setting to edit, and then use the
that setting:
Selection
State
Calibrate-LNA-Current
Current-Window:
Setting
(Mute setting) Muted (i.e., Tx off) or Unmuted (i.e., Tx on)
Manual (0.0 to 1.0, in increments of 0.1) or Calibrated
ODU: FSK-control  CSAT (2CSATs  CSAT #X) 
Configuration  Rx
Mute=Unmuted
Setting
(Rx Frequency) 3625-4200 MHz, in steps of 1.0 or 2.5 MHz.
(Rx Attenuation) 0 to 25 dB, in increments of .25dB.
(Mute setting) Muted (i.e., Tx off) or Unmuted (i.e., Tx on).
Manual (0.0 to 1.0, in increments of 0.1) or Calibrated.
ODU: FSK-control  CSAT (2CSATs  CSAT #X) 
Configuration  LNA
Calibrate-LNA-Current=N
Setting
(LNA State) Off or On. This controls whether or not the CSAT provides LNA
Power via the Receive RF Cable.
Select YES and press ENTER to calibrate the LNA current for use with the
Current-Window function. (Default is NO.)
A value from 20% to 50% defines the allowable LNA Current change before
declaring a fault. Select 99% to disable the Current Window function.
Att=23.00 dB
Slope:x.x, Cal()
Fault-Logic=Summary
10–16
Revision 0
MN-CDM625A
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