154 Keysight N9927-90001 User’s Guide
SA (Spectrum Analyzer) Mode
SA Mode Settings
signal power will not be displayed accurately. This can occur even if
ADC Over
Range
is not displayed because devices other than the ADC, such as the mixer,
might be compressed. Increase the RF Attenuation value to prevent the SA
receiver from being compressed.
How to Check for a Compressed Measurement
— Using a marker at the signal peak, make note of the signal power level.
— Increase the RF Attenuation level by 5 dB.
—If the signal level does NOT change, then NO compression exists. This
indicates that the signal is in the linear region of the FieldFox
receiver.
—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). The Trace 2 trace state is
“View.” For information, refer to
“Trace Display States (SA Mode)” on page 175
Pink Trace
- Current correction factor. See below.
— Learn how to set Y-Axis
Units
Содержание N9913A
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Страница 142: ...142 Keysight N9927 90001 User s Guide Calibration for NA CAT and VVM Modes Calibration Method Summary ...
Страница 202: ...202 Keysight N9927 90001 User s Guide SA Spectrum Analyzer Mode Channel Measurements ...
Страница 262: ...262 Keysight N9927 90001 User s Guide IQ Analyzer IQA Option 351 CPU2 Only Other Features Available ...
Страница 286: ...286 Keysight N9927 90001 User s Guide Interference Analyzer SA Mode Option 236 Record Playback SA Option ...
Страница 292: ...292 Keysight N9927 90001 User s Guide Reflection Mode SA Models Option 320 Reflection Mode Settings ...
Страница 316: ...316 Keysight N9927 90001 User s Guide Frequency Offset Using Power Sensor FOPS Option 208 FOPS Settings ...
Страница 332: ...332 Keysight N9927 90001 User s Guide Pulse Measurements Mode Option 330 Pulse Measurement Settings ...
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