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Using Real-time Spectrum Analyzer
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Persistent interference finder
The Persistent Interference Finder is an automatic triangulation algorithm that uses GPS coordinates to locate possible interference
sources based on three measurements. The persistent interference finder calculates possible interference locations using its
inscribed circle or circumscribed circle based on measured intersection points. You can plot up to seven measurement points and
select three that are more representative for triangulation. CellAdvisor 5G automatically logs measurement positions not to lose
them while changing measurement modes. You can switch the main screen from persistent spectrum view to map view and vice
versa using the icon, (
) on the persistent spectrum view screen. Before starting the Persistent Interference Finder, you
need to configure spectrum measurements. See "
Configuring Spectrum Measurements
". Note that the purpose of the measurement
is to monitor the intermittent and transient interfering signals.
To make full use of the feature available in the map mode, you will need a GPS receiver and an antenna. For more details, see the
antenna connection below.
Antenna connection
Before starting the measurement, you need to connect the Omni or Log periodic antenna to your instrument. In the Interference
Finder mode and the Radar Chart mode, you can perform interference hunting using the optional Antenna Advisor Handle after
attaching a broadband directional antenna to it. The handle is a device that has a built-in GPS antenna and LNA. The following are
examples of the antenna connection.
1
Mount a broadband antenna to your AntennaAdvisor Handle.
2
Connect the
RF Type-N jack
of the handle to the
RF In port
of the instrument.
3
Connect the
GPS SMA jack
of the handle to the
GPS port
of the instrument.
The GPS status indicator appears on the instrument screen.
4
Connect the
USB plug
of the handle to the
USB Host
port
of the instrument.
The device icon appears in the system status bar on the screen.
NOTE:
The AntennaAdvisor Handle is an optional item. It is recommended that you use a log periodic antenna with
AntennaAdivsor handle to search more exact directional information. You can use a log periodic antenna or Omni
antenna alone as well.
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