Chapter 4 4-9
Making GSM Air Interface Measurements
Making the Out-of-Band Spurious Measurement
Inspecting Results
1. Select a specific spur:
•Press
Meas Setup, Inspect Spur and Inspect Spur ON. If any spurs
have been measured, the current spur number is highlighted in
the results table.
• Move up and down the list of spurs using the numeric keypad or
tab keys.
2. Inspect a specific spur by using:
• Parameters contained under the
Frequency, Span and Amplitude
front panel keys.
•
Sweep Time, Res BW and Video BW parameters, contained under
Meas Setup, and Inspect Spur.
Troubleshooting Hints
• If an external attenuator is used, be sure to include the attenuation
value in the measurement. This can be done under the
Input, Ext Atten menu.
• If an external preamplifier is used, be sure to include the gain value
in the measurement. This can be done under the
Input and Ext Gain
menu.
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