Commands Listed in Alphabetical Order
MARKER:PEAK:
EXCURsion
This command specifies the peak excursion value, in dB, for the frequency
domain trace automatic peak markers.
Peak excursion refers to how far an RF signal needs to fall in amplitude between
marked peaks, in order to be considered another valid peak. If the peak excursion
value is low
, more peaks will tend to qualify as valid peaks and have associated
markers. If the peak excursion value is high, fewer peaks will tend to qualify as
valid peaks and have associated markers.
Conditions
MDO3000, MDO4000/B, or MDO4000C models with option SA3 or SA6 only.
Group
RF
Syntax
MARKER:PEAK:EXCURsion <NR3>
MARKER:PEAK:EXCURsion?
Related Commands
MARKER:PEAK:THReshold, MARKER:TYPe, MARKER:PEAK:STATE
MARKER:PEAK:MAXimum
Arguments
<NR3> is a floating point number that specifies the automatic marker excursion
value.
Examples
MARKER:PEAK:EXCURsion 30 sets the peak excursion value to 30 dB.
MARKER:PEAK:EXCURsion? might return 30.0000, indicating a peak excursion
value of 30 dB.
MARKER:PEAK:MAXimum
This command specifies the maximum number of frequency domain trace peaks
that could have automatic markers placed on them. This can be a number
between 1 and 11. The default is 5. To turn on the automatic peak markers, use
the command MARKER:PEAK:STATE. To list all of the peak markers, use the
command SEARCH:SPECTral:LIST?
The actual number of automatic markers may be less than the maximum,
depending on the threshold and excursion values and the spectral content ofthe
RF signal.
If more peaks than the maximum are detected that meet the threshold and
excursion criteria, only the highest amplitude peaks will have automatic markers
placed on them.
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-363
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