1107
Peak Search
Marker Delta
Performs the same function as the Delta 1-of-N selection key in the Marker menu. Basically this sets the
control mode for the selected marker to Delta mode. See the “Marker” on page 989 for the complete
description of this function. The key is duplicated here in the Peak Search Menu to allow you to
conveniently perform a peak search and change the marker’s control mode to Delta without having to
access two separate menus.
Mkr->CF
Assigns the selected marker’s frequency to the Center Frequency setting. See “Marker To” on page 1027
for the description of this function. The key is duplicated here in the Peak Search Menu to allow you to
conveniently perform a peak search and marker to CF without having to access two separate menus.
Mkr->Ref Lvl
Assigns the selected marker’s level to the Reference Level setting. See “Marker To” on page 1027 for the
description of this function. The key is duplicated here in the Peak Search Menu to allow you to
conveniently perform a peak search and marker to RL without having to access two separate menus.
Peak Criteria
Pressing this key opens the Peak Criteria menu and allows you to adjust the Pk Threshold and Pk
Excursion parameters used for peak search functions.
For a signal to be identified as a peak it must meet certain criteria. Signals in the negative frequency
range and signals very close to 0 Hz are ignored. If either the peak excursion or peak threshold functions
are on, then the signal must satisfy those criteria before being identified as a peak.
When peak excursion and peak threshold are both off:
Peak Search, Continuous Peak Search, and maximum part of Pk-Pk Search will search the trace for
Initial S/W Revision Prior to A.02.00
Key Path Peak Search or Marker
Notes Whenever the selected marker is in Delta mode and you are in the Peak Search
menu, the Marker Delta key should be highlighted and the active function for
setting its delta value turned on.
Key Path Peak Search or Marker->
Dependencies Same as specified under Marker To
Initial S/W Revision Prior to A.02.00
Key Path Peak Search or Marker ->
Dependencies Same as specified under Marker To
Initial S/W Revision Prior to A.02.00