Table of Contents
Advertisement
Txα (Tx Alpha Filter Rolloff Factor) – Use the ▲▼ arrow keys to select the Txα. Press ENTER.
Valid settings are:
Txα (Tx Alpha Rollout Factor) (%)
0.05, 0.10, 0.15, 0.25
The Rxα of the corresponding receiver must match the Txα – see Sect.
6.2.1.4.1 for details. To summarize:
•
Set Rxα = 0.35 if Txα ≥ 0.25
Set Rxα = 0.12 if Txα ≤ 0.20
•
6.2.1.3.2
Tx-IF Frequency:
To edit the Tx-IF Frequency, use the ◄ ►arrow keys to select a digit, and then use the ▲▼
arrow keys to change that digit. Press ENTER. Valid settings are:
IF Frequency
70/140 MHz
L-Band (FAST Option)
When you use the ODU menus to configure a BUC lockout frequency, this screen displays a
second line of information:
Tx-IF Frequency:
(LO:12500 MHz
As you edit the IF frequency, the Satellite frequency updates accordingly.
Satellite frequency = LO ± IF frequency,
where the sign ± is determined by the LO mix parameter:
•
High-sided mix [–] (includes a spectral inversion);
•
Low-sided mix [+].
Front Panel Operation
0.35
CONFIG: Tx Freq (Frequency)
Sat:14250.0000 MHz) ()
0070.0000 MHz
Range
50-180 MHz
950-2250 MHz
1750.0000 MHz
6–13
CDM-425 Advanced Satellite Modem
Default
()
Step Size (Increment)
100 Hz
100 Hz
MN-CDM-425
Revision 0
Advertisement
Table of Contents
