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Measuring the Downstream RF Signal
Figure 4-3
Measure the IF signal using the channel power option on your spectrum analyzer. Set your channel
Step 5
spacing and your channel bandwidth to 6 MHz. Your analyzer should display a signal similar to the one
shown in
Figure 4-4
The IF channel power in
Note
Select the video averaging feature. Your spectrum analyzer should display a signal similar to the one
Step 6
shown in
Cisco uBR7225VXR Universal Broadband Router Hardware Installation Guide
4-6
Viewing the Downstream IF Signal on a Spectrum Analyzer
Figure
4-4.
Measuring the IF Channel Power
Figure 4-4
Figure
4-5.
Chapter 4
Connecting the Cisco uBR7225VXR Router to the Cable Headend
is +34.23 dBmV, as displayed on the spectrum analyzer.
OL-17309-01
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Troubleshooting
