Agilent Technologies S GSM, 8922M manual Method

Spectrum Analyzer (Available if Option 006, Spectrum Analyzer, is Fitted)

NOTE

NOTE

Making Measurements

Measurements

The spectrum analyzer allows you to view the mobile phone’s signal over a wide dynamic range. It also allows you to view any adjacent interference which may exist.

The spectrum analyzer can detect very low power signals where Active Cell and even Test Mode cannot operate. Broken cable or connectors can be found using this function.

Method

Select SPEC ANL in the cell control screen.

Selecting (1) provides access to other functions of the spectrum analyzer. These are:

•Main - the default screen has basic spectrum analyzer functions, see Figure 2-12 on page 2-25.

•RF Gen - this controls the RF generator in the Agilent 8922M/S. The generator signal can be fed back into the spectrum analyzer for signal confirmation. The Aux RF OUT port should be connected to the RF In/Out, and the RF Output set to “Aux RF OUT”.

If both the input and output are set to RF IN/OUT, large errors in measured signal level will be seen.

•Marker - this screen allows you to control the marker for the input signal.

•Auxiliary - the auxiliary screen controls the inputs and the attenuator settings.

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