Web GUI Monitoring & Control
Figure 4.31: Stream Isolation - Assignment ISI Activated
When the feature is active, the user can enter ISI values in any of the legal MODCOD boxes. ISI
values in the range 0 to 255 inclusive may be entered.
In the example shown in Figure 4.32, the user has configured one stream, ISI=1, to occupy a
range of QPSK MODCODs, from rate 3/5 to 8/9 inclusive. A second stream, ISI=2, is only expected
in base-band frames transmitted using the 16APSK rate 3/4 MODCOD.
Notes
1. All base-band frames transmitted using 16APSK rate 3/4 will be treated as belonging to stream
ISI=2.
2. The QPSK code rates from 3/5 to 8/9 can
only
be used to transmit stream ISI=1.
SBD75e Series Demodulator Installation and Operation Manual
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