Agilent Technologies ESA Series User's/Programmer's Reference page 143

signal. Pressing
upper window is not the active window or if it is in zero
span.
Key Access:
Finds the next peak to the left of the zone center
Zone Pk Left
frequency on the upper window trace and then moves
the zone so that it is centered around the new peak. The
zone span is not changed. The center frequency of the
lower window changes to reflect the new zone center
frequency. The lower window will not be updated until
it is made active. If no peak is found, the zone will not
be moved. A signal must obey the parameters defined
in
Search
signal. Pressing
upper window is not the active window or if it is in zero
span.
Key Access:
Chapter 2
will have no effect if the
Zone Pk Right
,
SPAN X Scale Zone
, to be identified as a peak
Search Param
will have no effect if the
Zone Pk Left
,
SPAN X Scale Zone
Front-Panel Key Reference
SPAN X Scale
143