Comtech EF Data CDM-625 - Manual (Page 146)

CDM-625 Advanced Satellite Modem Revision 15
Front Panel Operation MN-CDM625
5–46
5.2.1.10.9.1 CONFIG: Misc  MEO Antenna Handover
Antenna Handover: Enabled DPD = 00
Mode = Manual ()
Use the ◄ ► arrow keys to navigate to the proper line:
First, on the top line – Use the ◄ ► arrow keys to select the Antenna Handover operational
control, and to set the DPD (Digital Pre-Distortion) limit.
• To set the Antenna Handover operation, use the ▲▼ arrow keys to select operation as
Enabled or Disabled.
• To set a value for the DPD limit for this unit, use the ▲▼ arrow keys to select a DPD value
from -13 to (+)13.
Next, on the bottom line – Use the ▲▼ arrow keys to set the Antenna Handover switching
mode as Manual or Auto.
Press ENTER when done.
5.2.1.11 CONFIG: Mask
The Mask submenus allow you to selectively mask (ignore) or make active various alarms and
traffic conditions that are monitored by the modem.
Alarm Masks: AIS Buffer Ref RxIF TxClk
TxSat RxSat Terr ROp BUC LNB CEX ()
Use the ◄ ► arrow keys to select AIS, Buffer, Ref, RxIF, TxClk, TxSat, RxSat, Terr, ROp, BUC, LNB
and CEX, and then press ENTER.
5.2.1.11.1 CONFIG: Mask  AIS
AIS: Tx-Terr-AIS = Masked (Active,Mask)
Rx-Sat-AIS = Active ()
Use the ◄ ► arrow keys to select Tx-Terr-AIS or Rx-Sat-AIS, and then use the ▲▼ arrow keys to
select either as Active or Masked. Press ENTER when done. Note the following:
• Selecting Tx-Terr-AIS as Active generates a fault whenever the modulator senses that the
‘all ones’ condition is present in the terrestrial data.