Cisco UBR7225VXR Hardware Installation Manual page 97

Chapter 4 Connecting the Cisco uBR7225VXR Router to the Cable Headend
Figure 4-26
The horizontal line passing through the center of the spectrum analyzer display in
Tip
trigger line.
Step 6 Set the sweep value to 80 microseconds. Your spectrum analyzer should display a signal similar to the
one shown in
Be sure that your particular spectrum analyzer is capable of supporting sweep times as short as 80
Note
microseconds.
Figure 4-27
Position the trigger line on the spectrum analyzer so that it is roughly in the middle (approximately
Step 7
halfway between the highest and lowest portions) of the upstream RF signal.
OL-17309-01
Measuring the Upstream RF Signal—Setting the Resolution and Video Channel
Bandwidth
Figure 4-27.
Measuring the Upstream RF Signal—Setting the Sweep Time Period
Cisco uBR7225VXR Universal Broadband Router Hardware Installation Guide
Measuring the Upstream RF Signal
Figure 4-26 is the
4-23