The advantage of using DVB-S2 in the CCM
mode is the improved protection that is achieved
by utilizing the new inner and outer codes.
Another advantage is the 30 percent increase in
capacity that is realized while using the method.
If Auto-CCM is selected, the receiver will detect
and configure the Modulation Mode, Pilot, and
Frame Type.
Adaptive Coding and Modulation (ACM) is
available for receivers with the appropriate
hardware and feature key. In this mode,
modulation and coding can vary on a DVB-S2
frame by frame basis. Auto-CCM is the preferred
method to automatically detect modcod, pilots
and frame type. **This configuration is not
available via front panel at this time.
note: this field is not applicable for DVB-S.
Similar functionality (AUTO MODCOD detection)
can be used in DVB-S by using QPSK_AUTO or
8PSK_AUTO modulation modes.
Modulation
Mode
This control allows the operator to select the
desired modulation mode and FEC code rate.
note: This is a configuration value. When in
DVB-S2 AUTO-CCM mode, actual detected
modulation can be found in the Quick View
status. QPSK_AUTO and 8PSK_AUTO
configurations are only valid in DVB-S. See how
to appendix for automatic detection instructions.
We display all possible ranges
available via our device in the
Front Panel. This list will differ
from the list found in the web UI
as it only shows those options
available based on the hardware
and feature keys found.
QPSK-1/2
QPSK-2/3
QPSK-3/4
QPSK-5/6
QPSK-6/7
QPSK-7/8
QPSK-1/4
QPSK-1/3
QPSK-2/5
QPSK-3/5
QPSK-4/5
QPSK-8/9
QPSK-9/10
QPSK_AUTO*
8PSK-3/5
8PSK-2/3
8PSK-3/4
8PSK-5/6
8PSK-8/9
8PSK-9/10
8PSK_AUTO*
16QAM-3/4
16QAM-7/8
16APSK-2/3
16APSK-3/4
16APSK-4/5
16APSK-5/6
16APSK-8/9
16APSK-9/10
32APSK-3/4
32APSK-4/5
32APSK-5/6
32APSK-8/9
32APSK-9/10
Symbol Rate The number of symbols transmitted per second.
The amount of data per symbol is dependant
upon the modulation type, e.g. QPSK, 8PSK, etc.
Range can be determined by
feature key.
