Interference Finder (Option 24) - Anritsu Field Master Measurement Manual

Making Spectrum Analyzer Measurements

3-17 Interference Finder (Option 24)

The interference finder measurement is set up using the
The interference finder measurement is used in conjunction with a directional antenna to locate the direction
of an interfering signal. This test measures the integrated power of a received signal over a specified frequency
range. During the measurement, the instrument emits an audio tone that coincides with the power of the
received signal. As the antenna is pointed toward the signal source, the signal level increases further into the
set MAX and MIN level, and the audio increases in pitch. An example of a frequency modulated interfering
signal is shown in the figure below.
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1. The status panel provides quick access to common spectrum analyzer settings. See
(Interference Finder)" on page
2. Interference setup parameters and measurement results are shown in a table at the bottom of the display.
3. A vertical bar corresponds to the received signal strength within the integration bandwidth.
4. Dashed vertical lines and a shaded region define the received channel integration bandwidth.
5. Horizontal blue lines define the audio response range for the measurement.
6. All signal power measurement parameters are set via the SETUP menu.
Figure 3-62. Interference Finder Measurement
Frequency and level settings for many interfering signals can be set as follows:
1. Press MEASURE on the main menu.
2. Select Interference from the MEASUREMENT button.
3. Press SETUP and then do the following:
• Set the signal INTEGRATION BW (bandwidth).
• Toggle and set the POWER LIMIT if you wish to see pass/fail test results.
• Set the MAX LEVEL and MIN LEVEL for the audio pitch response of the measurement. Note that
these settings can also be dragged into position using the indicator bars in the display panel.
Spectrum Analyzer MG
2 3
3-79.
PN: 10580-00447 Rev. C
3-17 Interference Finder (Option 24)
"SETUP Menu (Interference Finder)" on page
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3-80.
"STATUS PANEL
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