Technical data

Chapter 16 443
Spectrum Analyzer
Using the Interference ID Measurement
Spectrum Analyzer
10 You can set the threshold level to
automatically set value or manual select
a value by:
a. On [Threshold] select
Auto
Or
a. On [Threshold] select
Manual
b. Enter the threshold value using the
numeric keypad.
c. Select [dBm].
The threshold limit line is
displayed on the graticule at the
desired level. Ensure that the
threshold value you enter is within
the graticule range or the threshold
limit line will be off the display.
The threshold is used to determine
the “edges” of the signal. Manual
adjustment may be required to
correctly identify some signals,
especially in crowded spectrums.
11 You can set center frequency of the
display to the marker frequency by:
a. [Zoom to Signal]
b. [Zoom In]
The marker will track with the new
center frequency at the center of
the display. The Span will be
decreased to enhance viewing of
the designated interference signal.
12 Under [Zoom to Signal] you may also
select [Zoom Out]
[Zoom Out] will back out the
[Zoom In] series. If you Manually
set the Frequency/Channel or
Span, it will clear the [Zoom Out]
history.
Step Notes