
7 Direction Finding Mode
134
IDA
-
3106
Narda
7.4
Horizontal Scan
Horizontal Scan
plots the signal strength versus the angle of incidence on a
polar diagram. The measured signals are normalized to the maximum value
linearly during the measurement (1 = 100 % signal strength). The display allows
you to more easily see the difference between the received signal and the
reflections that occur. The IDA
-
3106 automatically calculates the bearing of the
signal source based on the horizontally measured values.
The calculation of the main angle of incidence is performed where possible
using a quadratic regression of the measured values obtained. Otherwise,
the azimuth angle of the maximum level is assumed to be the direction of
transmission and a message to this effect is displayed.
To select the Horizontal Scan function:
Press the
Horizontal Scan
softkey until
On
appears.
Figure 25:
Direction Finding
mode,
Horizontal Scan
function.
The following measurement procedures are available:
•
Continuous Horizontal Scan (Continuous)
(see page 135)
•
Discrete Horizontal Scan (Discrete)
(see page 136)
•
Discrete Horizontal Scan with Max Hold (Discrete with Max Hold)
(see page 137)
You can also determine the bearing manually if the bearing calculated on
the basis of the measured values does not appear to be sensible; see
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: ......