Keysight N9938-90003 User’s Guide 123
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers)
SA Mode Settings
— The FieldFox can also read *.ANT (Antenna) files that were created from
older Keysight Spectrum Analyzers.
— SA Mode cable or antenna (*.csv or *.ANT) files can NOT be edited in Data
Link software.
How to create a Cable file from an S21 (NA mode) or an Insertion Loss
(CAT mode) measurement
1. Measure the S21 or Insertion Loss of a cable. In NA mode, select either
LogMag, Linear, or VSWR formats.
2. Use Manage Folders to change the active folder to CABLES. Learn how in
“Manage Folders” on page 276.
3. While in NA mode, save the measurement as a *.csv file. Learn how in “How
to Save a File” on page 266.
4. In SA mode, select Corrections, then recall the *.csv file for correction.
Source Tracking Offset and Offset Reversal
This feature requires:
— N991xB and N995xB FieldFox Combination Analyzers to have Options 209,
210, and 233
— N993xB and N996xB Spectrum Analyzers to have Options 209 and 220
Source offset tracking is used to offset the Source frequency from the Receiver
frequency by a fixed offset at every tune frequency. This feature is used when
the DUT contains a frequency translation device or mixer.
How to set Tracking Offset and Offset Reversal
— On the Receiver unit, press Meas 1
—Then Source
—Then Advanced
— Then choose one or both of the following:
—Tracking Offset
Enter an offset value.
—OffsetReversal
Determines whether Receiver Freq is added to or
subtracted from the Offset Freq.
——OFF
SourceFreq = Offset + RecFreq. Use to measure
Upconverters.
——ON
SourceFreq = Offset - RecFreq. Use to measure
Downconverters. The source sweeps in Reverse direction.
Note: The Offset Freq. MUST be larger than the Receiver Stop
Freq.
To Next Page
Loading...
Need help?
General
