Chapter 10 Measure Mode – Spectrum Tab
Downstream Spectrum
DSAM Help User Guide Rev. 001 253
frequency spans. The Downstream Spectrum measurement mode
allows for a very comprehensive troubleshooting utility that reveals
ingress spikes on the forward path as brief as 1 ms.
Running a
Downstream
Spectrum
To run a downstream spectrum
1 Press Measure.
2 Press the Spectrum softkey.
3 Using the arrow keys, select Downstream Spectrum.
4 Press ENTER.
5 Press the Settings softkey.
6 Using the arrow keys, select Center Frequency.
Figure 229 Spectrum – Downstream Spectrum
Figure 230 Spectrum – Downstream Spectrum
21128026 R001 DSAM Help User Guide.book Page 253 Thursday, February 5, 2009 2:02 PM