Comtech EF Data SLM-5650A - Manual (Page 98)

SLM-5650A Satellite Modem Revision 8
Front Panel Operation MN-SLM5650A
5–16
When entering the data rate, the following interactions need to be taken into
account:
If the modulation type selected is 8PSK, 8QAM, or 16QAM the minimum data rate
allowed is 256 kbps.
When changing certain parameters like modem type, the data rate will default to 64
kbps or 256 kbps.
The calculated symbol rate is displayed for the user. This is helpful for determining
the occupied bandwidth required for the selected modulation type, code rate and
overhead.
CONFIG: Rx  Overhead
Rx: Overhead:None Rate: N/A
RS-CW:N/A Depth:N/A (E)
First, use the  arrow keys to select Overhead, Rate, RS-CW, and Depth, and then press
[ENT]. Then, use the  arrow keys to scroll through the available settings. Press [ENT] once
again when done.
Option Settings
Overhead (IESS-308, IESS-309 are standard; AUPC is optional).
Rate 96 kbps (IESS-308), 1/15 (IESS-309 or AUPC), N/A (none).
RS-CW Reed-Solomon Code Rate, N/K: 126/112, 194/178, 208/192, 219/201, 220/200, 225/205.
Depth De-interleaving depth: 4, 8 or 16
Some selections will only be visible if the modem is set to a compatible
mode, or if an option is installed or enabled.
CONFIG: Rx  Frequency
Rx Frequency: 1955.0000 MHz
Spectrum: Normal (E)
First, use the  arrow keys to select Rx Frequency or Spectrum, and then press [ENT].
Use Method 1 or Method 2 to enter the desired Rx Frequency:
Method Procedure
1 Use the number keypad and enter the desired frequency. Press [ENT] when done.