NARDA IDA - Page 181

Narda IDA-3106 173
8.5.1 Example Delta Marker applications
Finding a single event that is earlier than the time range shown in the
Spectrogram window:
 Delta Marker = Single Marker,
Navigation = Frequency
1. Press the Hold key to freeze the display.
2. Select Active Marker = A or B.
3. Set the desired frequency with the selected marker.
4. Select Navigation= Time.
5. Scroll back down the time axis of the spectrogram with the marker and
select the desired time point.
 The associated values are displayed in the Marker bar.
Comparing two events at different times in the spectrogram:
 Delta Marker = Delta Time,
Navigation = Frequency
1. Press the Hold key to freeze the display.
2. Select Active Marker = A.
3. Set the desired frequency with the selected marker.
4. Select Navigation= Time.
5. Set Marker A to the first time point.
6. Select Active Marker = B.
7. Set Marker B to the second time point.
 The associated values are displayed in the Marker bar.
Tip: If you select Navigation = Frequency, you can move both markers together
through the frequency band.
Comparing two events at identical times in the spectrogram:
 Delta Marker = Delta Frequency,
Navigation = Frequency
1. Press the Hold key to freeze the display.
2. Select Active Marker = A.
3. Set Marker A to the first frequency.
4. Select Active Marker = B.
5. Set Marker B to the second frequency.
 The associated values are displayed in the Marker bar.
Tip: If you select Navigation = Time, you can move both markers together along
the time axis.