SDA-5500/SDA-5510 Sweep Configuration: Sweep History and Theory
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See Also
½ For more information about reverse path troubleshooting,
see Chapter 5.
• With both transmitters active, a different reverse sweep plan can be used
with each. If different types of information are required, try the following
procedure. The SDA-5510 can be set up for a sweep point every 1mHz
of reverse bandwidth to get fast sweep updates. The SDA-5500 can be
set up with a very dense sweep every 50kHz through a modem channel
that is being commissioned for service.
NOTE: While Acterna does not recommend a dense
sweep of an active reverse channel, during commissioning
more information may be helpful.
• The drawbacks to using both transmitters for reverse sweep are:
• A more complex set of connections in the headend.
• Slower forward sweep update rates when the SDA-5500 is used for
reverse sweep or noise broadcast.
NOTE: In a SDA-5500/SDA-5510 system, it is easiest to
set the SDA-5500 for forward only sweep, and the SDA-
5510 for reverse only sweep.
When you have selected active modes for your sweep transmitters, you can
proceed to wiring the transmitters accordingly.
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