8- 12 Keysight N9912-90001 User’s Guide
SA (Spectrum Analyzer) Mode
SA Mode Settings
8-
— If the signal level DOES increase, then the receiver was compressed.
Set the RF Attenuation value at the setting when further increases no
longer result in an increase in the displayed power level.
Field Strength Measurements
To measure the strength of any signal transmitted through the air, an antenna
must be connected to the FieldFox. The Field Strength feature allows you to
enter the frequency response of the receiving antenna (the Antenna Factor)
and associated cabling, and then have amplitude corrections automatically
compensate the displayed trace for that response.
Field Strength Measurements
Trace 1 - Corrected trace with antenna factor. (Antenna = ON, Apply Corr =
ON)
Trace 2 - Uncorrected trace (Apply Corr = OFF).
Red Trace - Current correction factor. See below.
—Learn “How to Set Y-axis Units” on page 8-9.
— Use a Band Power marker to measure total power over a range of
frequencies. Learn how in “Band/Interval Power Marker” on page 8-33
How to select and edit corrections for Field Strength measurements
The Antenna and Cable correction data survives a Mode Preset and Preset.
All Correction ON/OFF states survive a Mode Preset, but NOT a Preset.
—Press Scale/Amptd
.
—Then More
.
—Then Corrections
.
— Then choose from the following:
—Apply Corrections ON OFF
Turn ON and OFF correction for all settings.
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