Chapter 8 Measure Mode – Basic Tab
Return QAM Generator
184 DSAM Help User Guide Rev. 001
2 See “FDR Parameters” on page 64.
Viewing FDR
Results
To view FDR results in different ways
1 Press the View softkey.
2 Using the arrow keys, select one of the following options:
– Auto Reference (Shift, 9) – Enables you to automatically view
measurement results in the best reference setting on the
graph.
– 5 dB/div or 10 dB/div – Enables you to adjust the vertical
resolution of the graph for the best viewing.
– Pause (Shift, 8) – Suspends measurement updates.
3 Press ENTER.
Return QAM Generator
DSAM is equipped with this mode so you can evaluate problems in the
network arising due to phase and amplitude distortions. Generally
these problems need attention to take advantage of the higher
capacity of the 16 QAM or 64 QAM.
Figure 167 Configure – FDR Settings
NOTE
For best reference setting results you may need to press the Auto
Reference button up to three times.
21128026 R001 DSAM Help User Guide.book Page 184 Thursday, February 5, 2009 2:02 PM
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