
8 Spectrum Analysis Mode
170
IDA
-
3106
Narda
8.4.1
Changing the time resolution (Time Resolution)
In total, 400 lines are available in the spectrogram for the display. The time
resolution corresponds to the representation of one line and therefore
determines the maximum time that can be displayed: t = 400 x Time Res. If
the measurement time needed for a spectrum is longer than the time
resolution setting, the average sweep time will be shown in the display as
Time Res.
When the maximum display time is reached, the oldest result is
overwritten in each case (rolling memory).
To change the Time Resolution:
Press the
Spectrogram / Time Resolution
softkey and select a value.
NOTE:
A new spectrogram line is generated with every new spectrum if you set
As
fast as possible
.
8.4.2
Selecting the detector
Since the data in the time axis as well as the frequency axis is compressed
to display each individual pixel in the spectrogram, you must select a
detector. The choice of a detector determines which values from the
spectrum are shown in the spectrogram. The following types can be
selected:
•
RMS:
The spectrogram shows the time characteristic of the RMS value
•
+Peak:
The spectrogram shows the time characteristic of the largest
value
• –
Peak:
The spectrogram shows the time characteristic of the smallest
value
NOTE:
The measurement is always performed for all three detectors at the same
time. You can therefore switch between the detector types at any time and
the results shown immediately, without the need for a new measurement.
To select a detector:
Press the
Detector
softkey, select a type using the rotary control knob
and press
OK
to set it.
Summary of Contents for IDA
Page 1: ...IDA 3106 Interference and Direction Analyzer Operating Manual IDA IDA 2...
Page 8: ...Contents VI IDA 3106 Narda...
Page 28: ...2 Important Safety Instructions 20 IDA 3106 Narda...
Page 134: ...6 Common Functions 126 IDA 3106 Narda...
Page 166: ...7 Direction Finding Mode 158 IDA 3106 Narda...
Page 188: ...9 Level Meter Mode 180 IDA 3106 Narda...
Page 206: ...10 Time Domain Scope Mode 198 IDA 3106 Narda...
Page 218: ...11 I Q Analyzer Mode 210 IDA 3106 Narda...
Page 238: ...13 Measurement Data Memory 230 IDA 3106 Narda...
Page 242: ...14 Maintenance Repairs Updates 234 IDA 3106 Narda...
Page 246: ...15 PC Software 238 IDA 3106 Narda...
Page 254: ...16 Remote Control 246 IDA 3106 Narda...
Page 269: ...17 4 Antenna handle and antennas Narda IDA 3106 261 17 4 7 Antenna factors typical...
Page 272: ...17 Specifications 264 IDA 3106 Narda...
Page 284: ...19 Glossary 276 IDA 3106 Narda...
Page 290: ...Index 282 IDA 3106 Narda...
Page 291: ......