70 N9912A FieldFox User’s Guide
Triggering ................................................................ 87
Single/Continuous/Restart .................................. 87
Points ....................................................................... 89
Trace Display States .............................................. 89
Average Type .......................................................... 90
Average Count ........................................................ 91
Detection Method ................................................... 91
Display Line ............................................................ 92
Noise Marker .......................................................... 92
Band/Interval Power Marker ............................... 94
Frequency Counter at Marker ............................. 95
Audio Beep at Marker Power .............................. 95
Channel Measurements ........................................ 96
o Channel Power
o Occupied Bandwidth
o Adjacent Channel Power Ratio
See Also
Interference Analyzer (Opt 236)
Spectrogram Display .................................... 105
Waterfall Display........................................... 108
Record / Playback ......................................... 109
Optional settings
Markers .................................................................. 135
Limit Lines ............................................................ 145
Save Measurement Settings and Results ......... 151
SA Mode Settings
Select SA Mode before making any setting in this chapter.
Because there is no calibration, these settings can be made in any order.
How to select SA Mode
Press Mode_.
Then SA.
Frequency Range
The X-axis frequency range determines the frequencies that are measured for
each sweep. The default Start frequency is 0 Hz. However, the Start frequency
can be set as low as –100 MHz. The internal LO of the FieldFox can be seen at 0
Hz, which will mask signals that may be present.
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