L3Harris Narda SignalShark, Руководство пользователя

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Using Markers
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Frequency
Enter a frequency as marker position.
Time Enter a time as marker position.
Value Enter an absolute power level as marker position.
Search
The Search menu allows to set various parameters for setting markers to a peak, e.g. when
tapping the Next Peak button.
Spectrogram
Search Range
All / Visible : Select to search all data or just the visible data.
Track Peaks
Marker is fixed to a peak even if the frequency varies.
Auto peak Search
for M1
Marker 1 always shows highest peak.
Exclude LO Only frequencies higher than 4 x RBW are evaluated. Low
frequencies, DC portion, and mirror frequencies are excluded.
Peak Excursion Peak Excursion determines what is considered a peak in contrast to
noise.
Use Search Limits Narrow the search range:
• Lower Frequency : Set lower frequency limit
• Upper Frequency : Set upper frequency limit
• Threshold : Set the lower power level
Lower Frequency Shows lower frequency limit
Upper Frequency Shows upper frequency limit
Threshold Shows the lower power level