Config: Tx: Tx Modulation; Config: Tx: Tx Modulation: Pilot; Config: Tx: Tx Modulation: Pilot: Avg/Peak - Comtech EF Data CDM-710 Installation And Operation Manual

CDM-710 Broadcast Satellite Modem
Front Panel Operation
Config: Tx: Tx Modulation: 
If  is selected:
Tx () Rolloff %:
35
The default setting for Rolloff () is 20%. Whenever the Mode is changed, () reverts to 20%,
but () is modified to the other values from this menu.

Config: Tx: Tx Modulation: Pilot

This menu is only available when the Mode selection is DVB-S2.
IMPORTANT
Tx Modulation Pilot:
Off/On
This menu is active only in the DVB-S2 mode. The selections Off/On enable or disable the
insertion of pilot symbols into the physical layer frame. The default value is

Config: Tx: Tx Modulation: Pilot: Avg/Peak

Tx Modulation Pilot:
Average
The selections Avg/Peak sets the pilots and header to the average power band of the transmitted
constellation(QPSK, 8PSK, 16APSK or 32APSK) per DVB-S2 and to the outer ring of the
transmitted constellation(QPSK, 8PSK, 16APSK or 32ASK) respectively. The CDM-710
automatically adjusts but the default value is Avg.
Note: Not all demodulators will function well with the Peak pilot level.
20 25
(E)
Avg/Peak (E)
Peak (E)
5–12
Revision 9
MN/CDM710.IOM
Off
.