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R&S FSH
Digital Modulation Analyzer
Measurements on 1xEV-DO Signals
Operating Manual 1173.6275.12 - 30
289
9.6.2 The PN Scanner
If you equip the R&S FSH with option R&S FSH-K47E, the PN scanner becomes
available.
If you are measuring over-the-air (OTA) signals, you can use the PN scanner to
identify base stations in the area. Every base station is identified by its PN offset. The
PN Scanner shows the PN offset for every base station it has detected. For every base
station it also shows the its power graphically (each yellow bar represents an active
and detected base station) and numerically in a table above the diagram.
Note that a GPS trigger is necessary to detect the PN offset of the base stations you
are scanning. GPS trigger is available with the R&S FSH GPS receiver, for example.
Trace modes
Note that the PN Scanner supports several trace modes.
If you are using a trace mode other than Clear / Write, the bars depicting the PN offset
may turn grey. A grey bar is shown in case of base stations that have been detected in
the past but are not currently detected.
For more information on the trace modes see "