Comtech EF Data SDM-9000 - Manual (Page 112)

SDM-9000 Satellite Modem Operation
Rev.4 4–39
4.2.5.2 Utility Demodulator
ASSIGN RX FILTERS RX filter display utility. Used to view filter rate assignments.
The modulator has up to four symbol rate filters. Filters are
designated as A, B, C, and D.
To view the assignments, press [ENTER]. RXA will be on
line 1 of the display, which indicates TX filter A. Following
RXA on line 1 will be the code rate (1/2, 3/4, or 7/8). On line 2
will be the data rate assigned to preset A. Press [
← ] or [ → ] to
view the assignments for B, C, and D (RXB, RXC, and RXD).
Notes:
1. These assignments are used for the selection of RX
rate in the Configuration Functions menu.
2. If the filter is optimized for Reed-Solomon, “+RS” will
be appended to the code rate.
3. Refer to the table in Figure 4-12 for code rates and
data rate ranges.
DEMOD SPECTRUM Programmable vector rotation. Allows the operator to select
Normal or Inverted for spectrum reversal of the I and Q
baseband channels.
DEMOD OPTION This program displays the 8PSK and 16QAM option.
Note: This menu is status only.
RX MODULE FIRMWARE Displays the RX module firmware version installed in RX
module. The display includes the month, day, and year.
RX FPGA FIRMWARE Displays the firmware installed in the RX field programmable
gate array. The display includes the month, day, and year.