Comtech EF Data SLM-5650 Installation And Operation Manual page 83

Satellite modem
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SLM-5650 Satellite Modem
Front Panel Operation
Select: CONFIG: Receive: DataRate
Rx Data Rate:
The user can enter the desired data rate using step 1 or step 2 as follows:
1. Use the number keypad and enter the desired data rate (see Chapter 3).
2. Use the
IMPORTANT
Select: CONFIG: Receive: Overhead
Rx:
Select the desired Overhead, Rate, RS-CW, and Depth and then press [E].
Overhead
Rate
RS-CW
Depth
IMPORTANT
020000.000 kbps
Sym Rate:
0266666.666 ksps (
arrow keys to scroll up and down to select the desired data
rate or symbol rate. When scrolling data rate the symbol rate will be
automatically recalculated and displayed.
When entering the data rate, the following interactions need to be taken
into account. If the modulation type selected is 8-PSK or 16-QAM 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.
Overhead:None
RS-CW:N/A
(IESS-308, IESS-309 are standard), (AUPC is optional)
96 kbps (IESS-308), 1/15 (IESS-309 or AUPC), N/A (none)
126/112, 194/178, 208/192, 219/201, 220/200, 225/205
(Reed Solomon Code Rate, N/K)
4, 8 or 16 (Deinterleaving depth)
Some selections will only be visible if the modem is set to a compatible
mode or if an option is installed or enabled.
Rate: N/A
Depth:N/A (
4–13
Revision 2
MN/SLM5650.IOM
E)
E)

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