Product specifications

CDM-710 Broadcast Satellite Modem Revision 10
Front Panel Operation MN/CDM710.IOM
If Tx Modulation Æ Pilot is selected (this menu is active only in the DVB-S2 mode):
Tx Modulation Pilot:
Off/On Avg/Peak (E)
Select Off/On or Avg/Peak using the ◄ ► arrow keys. The User should then press
ENTER.
If Pilot Æ Off/On is selected (this menu is active only in the DVB-S2 mode):
Tx Modulation Pilot:
Off/On Avg/Peak (E)
Using the ◄ ► arrow keys, 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. The default
value is Off. The User should then press
ENTER.
If Pilot Æ Avg/Peak is selected (this menu is active only in the DVB-S2 mode):
Tx Modulation Pilot:
Average Peak (E)
The solid cursor indicates the current configuration choice. Selected Average or Peak using the
◄ ► arrow keys. The CDM-710 automatically adjusts, but the default value is Average. The
User should then press
ENTER.
Select Average to set the pilots and header to the average power band of the transmitted
constellation (QPSK, 8PSK, 16APSK or 32APSK) per DVB-S2.
Select Peak to set the pilots and header to the outer ring of the transmitted constellation (QPSK,
8PSK, 16APSK or 32ASK).
Note: Not all commercially available demodulators will function well with the Peak pilot level.
If Tx Modulation Æ Frame is selected (this menu is active only in the DVB-S2 mode):
Tx Frame Size:
Long Short (E)
Select Long or Short using the ◄ ► arrow keys. The default value is Long. When selected,
Long enables the standard FECFRAME = 64,800 bits. If Short is selected, it enables the 16,200
bit frame. The User should then press
ENTER.
Note: Only DVB-S2 allows a FECRAME choice.
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