Comtech EF Data CDM-710 Installation And Operation Manual page 122

CDM-710/L Broadcast Satellite Modem
Front Panel Operation
(CONFIG:) Tx:  Mod  Pilot (DVB-S2 Mode only)
Use the   arrow keys to select Off/On or Avg/Peak. Press ENTER.
(Config:) Tx:  Mod  Pilot Off/On (DVB-S2 Mode only)
Use the   arrow keys to select Off or On. Press ENTER.
• The default value is Off. Select Off to disable insertion of pilot symbols
into the physical layer frame.
• Select On to enable insertion of pilot symbols into the physical layer
frame.
(Config:) Tx:  Mod  Pilot  Avg/Peak (DVB-S2 Mode only)
Take care when using this feature. Not all commercially available
demodulators will function well with the Peak pilot level.
Use the   arrow keys to select Average or Peak. Press ENTER.
The solid cursor indicates the current configuration choice. The modem
automatically adjusts, but the default value is Average. Note that:
• With Average, the unit sets the pilots and header to the average power
band of the transmitted constellation (QPSK, 8PSK, 16APSK, or 32APSK)
per DVB-S2.
• With Peak, the unit sets the pilots and header to the outer ring of the
transmitted constellation (QPSK, 8PSK, 16APSK, or 32APSK).
Tx Modulation Pilot:
Off/On Avg/Peak
Tx Modulation Pilot:
Off On
Tx Modulation Pilot:
Average Peak
7–16
MN/CDM710.IOM
Revision 12
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