HP 8590 E-Series User Manual page 226

function allows you to delete an item from spectrum analyzer memory or a
DELETE
file from the memory card. Use the step keys to view different sections of
FILE
the directory and use the knob to select the file or item to delete. Pressing
DELETE FILE causes a message to appear on the spectrum analyzer screen:
you are sure, press key again to purge data. Press DELETE FILE again if
you want to delete the memory item.
Note
Deleting items beginning with an underscore from spectrum analyzer memory is
not recommended and may have unexpected results. Items beginning with an
underscore are used by the spectrum analyzer.
Front-Panel Key Access: [RECALL) or (SAVE)
deletes an amplitude-correction factor that was previously selected by
DELETE
POINT SELECT POINT.
Front-Panel Key Access: (CAL)
deletes the limit-line entry for the selected segment number. Press
DELETE
SELECT SEGMENT then enter the segment number to select the limit-line entry
SEGMENT
for deletion.
Front-Panel Key Access: c-1
Demod
accesses the softkeys controlling demodulation functions, speaker volume,
squelch level, FM gain, and dwell time.
Front-Panel Key Access: (AUXJ
Option 102 or 103 only.
DEMOD
allows selection of amplitude (AM) or frequency (FM) demodulation.
AM FM
Activating AM detection turns off FM demodulation (if it is on). When the
frequency span is greater than 0 Hz, a 30 kHz resolution bandwidth is used
during demodulation, regardless of the screen annotation. When the span is
equal to 0 Hz, the displayed bandwidth is used.
Turning FM demodulation on turns off AM demodulation (if it is on). When the
frequency span is greater than 0 Hz, a 100 kHz bandwidth is used during the
demodulation, regardless of the screen annotation. When the span is equal to
0 Hz, the displayed bandwidth is used.
Front-Panel Key Access: (AUX]
102 or 103 only.
DEMOD
turns the AM or FM demodulation on and off. If the spectrum analyzer is in a
ON OFF
already present. The marker pause is changed to equal the current dwell time
value. Demodulation takes place on any signal that is indicated by the marker
position during the marker pause. There is no change to the display during
marker pause, but the demodulation signal is present on the AUX VIDEO OUT.
Also see the SPEAKER ON OFF softkey description.
Pressing DEMOD ON OFF selects the sample peak detector for AM
demodulation, the FMV detector for FM demodulation. If the spectrum
analyzer is in zero span, demodulation is done continuously, with or without an
on-screen marker.
Front-Panel Key Access: CRUX]
If
Key Descriptions 7-33