Chapter 12 EMF (EMI) Operation
Selecting the frequency range
198 9102 Handheld Spectrum Analyzer Software version 5.31
Selecting the frequency range
There are different methods to set the frequency range to be
measured; the range can be expressed by either the start and stop
frequencies (i.e. first and last frequencies on the display), or by center
frequency and span (i.e. the center and the frequency range), or by
other combinations of center frequency, span, start and stop frequen-
cies.
All four parameters are accessible in the Freq
menu. On the main
menu, however, only one of the combinations mentioned above is
shown, depending on the parameter last entered.
The following section concentrate on the different methods of setting
the frequency, which is one of the preparative steps for EMF measure-
ments. For descriptions of further Frequency menu functions (e.g.
Trigger) refer to Chapter 3 “Spectrum Analysis Operation”.
Figure 55 Frequency menu
NOTE
Changing a frequency parameter may affect an associated parame-
ter.
Example: In a unit without the frequency extension option installed, if
you change the span to the maximum of 4 GHz, the start and stop
frequencies are changed to 0 and 4 GHz, respectively.
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