NARDA IDA, Operating Manual, Page: 181 / 292

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.