Comtech EF Data SLM-5650B Installation And Operation Manual page 96

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CONFIG: Tx  DataRate
Tx Data Rate:
Sym Rate:
Use Method 1 or Method 2 to enter the desired Tx Data Rate (in kilobits per second):
Method
1
2
CONFIG: Tx  Overhead
Tx:
Overhead:None
RS-CW:N/A
Use the  arrow keys to select Overhead, Rate, RS-CW, and Depth, and then press
[ENT].
Use the  arrow keys to scroll through the available settings. Press [ENT] once again
when done.
Option
Overhead
Rate
RS-CW
Depth
Front Panel Operation
020000.000 kbps
0266666.666 ksps(E)
Procedure
Use the number keypad and enter the desired data rate.
(See Appendix B. OPERATIONS GUIDE.)
Use the  arrow keys to scroll through and select the desired data rate or symbol
rate. When scrolling through the data rates the symbol rate is automatically recalculated
and displayed.
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.
Rate: N/A
Depth:N/A (E)
Setting
IESS-308, IESS-309 are standard. AUPC is optional.
96 kbps (IESS-308); 1/15 (IESS-309); N/A (None), 1/15 (AUPC).
Reed-Solomon Code Word, N/K: 126/112, 194/178, 208/192, 219/201, 220/200,
225/205.
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.
5–12
SLM-5650B Satellite Modem
Revision 2
MN-SLM-5650B

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