Chapter 3 Spectrum Analysis Operation
Setting up the level parameters
60 9102 Handheld Spectrum Analyzer Software version 5.31
Changing between automatic and manual mode
Push the appropriate softkey (
RBW, VBW, or SWT) several times until
the desired selection (auto or manual) is highlighted.
Setting up the level parameters
The accuracy and the dynamic range between the measured signal
and the noise floor depend on the proper setting of the level settings.
These consist of the reference level and the attenuation.
The reference level basically determines the level at the top of the
display. The vertical axis is divided into eight horizontal lines; you can
adjust the scale (which defaults to 10 dB per line) to your preferences.
The attenuation setting can be coupled to automatically follow the
reference level setting. For reference levels of –20 dBm and lower, the
attenuation is set to 10 dB; the maximum attenuation is 50 dB.
Attenuation or gain due to external coupling can be compensated by
frequency-dependent coupling factors, so that the displayed measure-
ment values reflect the power at the device under test.
Setting the reference
level
1 In the main menu, push the Ref. softkey or select Level followed by
Ref. Alternatively, push the REF function key.
The reference level input field opens.
2 Enter the new reference level either using the numeric keys,
closing the input field with the appropriate enter key, or with the
U
P/DOWN arrow keys.
The new reference level appears at the top of the vertical axis. The
reference is based on the actually set output power.
Setting the hardware
attenuation
1 In the main menu, push the Attenuation softkey.
The Attenuation input field opens.
2 Enter a new attenuation value in the range from 0 to 50 dB (in
10 dB steps) and close the input field with one of the enter keys, or
use the U
P/DOWN arrow keys to select the attenuation value in the
range 10 to 50 dB.
If the attenuation value is changed, the attenuation option will
change to “manual”.
WARNING
The maximum input power level at the RF
IN connector is 30 dBm
(1 W). Higher input levels may result in serious damage of the instru-
ment.
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