HP 8590 E-Series User Manual page 256

PEAK
finds the highest displayed signal and narrows the span to a value selected
ZOOM by the user. Pressing
active function so the user can input the destination span. The current FINAL
SPAN value will be displayed. At that time the user can enter a span or press
PEAK
ZOOM again to use the displayed span.
The peak zoom function sets the reference level to the signal amplitude and
sets the center frequency step size to the signal frequency. If the signal is in a
microwave band, a preselector peak is executed.
For a signal to be found it must have a peak of at least 6 dB. If no signal is
found, Signal not found will be displayed. (The routine will ignore the
spectrum analyzer local oscillator feedthrough signal which is at 0 Hz.)
Front-Panel Key Access: @YXJ
PK MODE
select which peaks will be listed in the peak table to include all peaks, or to
exclude the peaks that are either above or below the display line, see table
below. The display line is activated if it was not currently being displayed.
Front-Panel Key Access:
switches the peak table sorting routine between listing the peaks in order by
PK SORT
descending amplitude or by ascending frequency.
FRQ AMP
Front-Panel Key Access:
displays a list, of up to ten signal peaks, that is updated at the end of each
PK TABLE
sweep. The peaks can be sorted in order by descending amplitude or by
ON OFF
ascending frequency. Peaks above or below the display line can be excluded
from the table. The peak table function works with trace A only. The peak
table is not saved with the m and (jj keys.
Front-Panel Key Access:
Option 041 or 043 only.
P l o t
accesses the menu used to address the plotter and to select plotter options.
See the lcopvl key for more information.
Front-Panel Key Access: (CONFIG)
Option
PLOTTER
changes the HP-IB address of the plotter. The plotter address is set to 5 when
ADDRESS
DEFAULT CONFIG is pressed.
Front-Panel Key Access: (-1
PEAK
ZOOM the first time will make FINAL SPAN the
peaks above display line listed
peaks below display line listed
Key Descriptions 7-63