Adtec RD-70 User Manual page 13

2.15GHz. The value entered in this field is used
with the Local Oscillator frequency to calculate
the Downlink frequency using the following rules.
If Downlink < Local Oscillator, then Downlink -
Local Oscillator = │L-Band│. If Downlink >
Local Oscillator, then Downlink - Local Oscillator
= L-Band
Modulation Allows the selection of the mod type.
Type
CCM Mode* When the Constant Coding and Modulation
(CCM) option is selected, the same modulation
mode and FEC is used for all physical layer
framing. 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 This control allows the operator to select the
Mode 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.
DVBS
DVBS-2
CCM
AUTO-CCM
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.