Keysight N9923A FieldFox User Manual page 109

B/A Transmission measurement with external source
Procedure
1. Connect the external source's frequency reference output to the FieldFox Freq
2. On the FieldFox, select System , then
3. Press Mode, then
4. For highest accuracy, set the FieldFox output power to Low. Press Meas Setup
5. To calibrate, replace the DUT with a THRU connection, preferably by connecting
6. Press Meas Setup 4, then Zero.
7. Connect the DUT and measure.
VVM (Vector Voltmeter) Mode
Ref IN on the top panel. If you are unable to use a common frequency
reference, then increase the IFBW to ensure you are measuring the peak of the
correct signal. After locating and tuning to the signal, you may be able to lower
the IFBW to reduce noise.
Ref, then Ext.
VVM
4, then More, then
Output Power
together the two Power Splitters (shown in green). For low frequency
measurements, TEEs can be used.
Configuration, then
System
, then or
B/A A/B
Low.
Frequency
109