Application Notes: Return Path Troubleshooting
334
A
Fig. Reverse ingress spectrum trace after 30 sec. with
traditional settings.
Fig. Reverse ingress spectrum trace after 6 sec. with dwell
time = 20 ms.
The "Zero Span" Mode
In this mode, you can view desired-to-undesired ratios and see peak bursts
of TDMA data. You can also measure peak digital levels, observe high traffic
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