User`s guide

N dl3 PTS
ON OFF
automatically places two markers at points N dB from the highest point on the
highest displayed signal, and determines the frequency difference between
the two markers. N dB is the active function and the value of N is set by
the user. The measurement defaults to 3 dB when it is first turned on. The
measurement runs continuously re-executing at the end of each sweep.
NEW
EDIT
NEXT
PEAK
No other signal can appear on the display within N dB of the highest signal.
The measured signal cannot have more than one peak that is greater than or
equal to N dB. A signal must be greater than the peak excursion above the
threshold to be identified. The setting for peak excursion may be increased
from the 6 dB default value so that noise will not be identified as signals.
Increasing the value too much may cause a smaller signal to be missed or
misinterpreted as part of a larger signal. The amplitude scale may be either
linear or logarithmic.
Front-Panel Key Access: (j-1
For Options Ml and 043 only. Refer to the HP 8590 E-Series and L-Series
Spectrum Analyzer and HP 8591C Cable TV Analyzer Programmer’s Guide for
more information.
starts the DLP editor function, clearing the DLP editor memory to create a
new item in the spectrum analyzer 2500 byte DLP editor memory. The item
will not be in the spectrum analyzer user memory until it is processed by the
SAVE EDIT softkey. The DLP editor memory buffer remains intact when the
instrument is preset and when it is powered off.
Front-Panel Key Access: [RECALL] or ISAVE_)
HP 8591 E, HP 8593E, HP 8594E, HP 85953, or HP 8596E only.
switches the active window between the two displayed windows, if the
windows display mode has been turned on. The active window is marked by
solid lines.
If the zoom function has been used to expand an active window to the full
screen, the II\IEXT) key still switches the active window between the two
windows. The windows remain zoomed (full screen) so the inactive window is
not displayed as the active window is switched.
NEXT PK
LEFT
places the marker on the next highest peak. The signal peak must exceed the
threshold value. (Also see the PEAK EXCURSN and THRESHLD ON OFF softkey
descriptions.)
Front-Panel Key Access: [PEAK SEARCH)
moves the marker to the next peak to the left of the current marker.
The signal peak must exceed the threshold value. If there is no peak to
the left, the marker will not move. (Also see the PEAK EXCURSN and
THRESHLD ON OFF softkey descriptions.)
Front-Panel Key Access: (PEAK SEARCH)
NEXT PK
RIGHT
moves the marker to the next peak to the right of the current marker.
The signal peak must exceed the threshold value. If there is no peak to
the right, the marker will not move. (Also see the PEAK EXCURSN and
THRESHLD ON OFF softkey descriptions.)
Front-Panel Key Access: CPEAK SEARCH]
7.58 Key Descriptions