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7 Direction Finding Mode
142
IDA - 3106 Narda
7.6 Exchanging bearings between
instruments
Direction Finding • External Bearing
You will normally only use one IDA - 3106 and will therefore have to move to
a different location to take bearings from different points. If more than one
instrument is available, you can have measurements made at several
locations simultaneously and exchange the results or transfer them to one
IDA - 3106 for evaluation.
The bearing results from the other instruments can be read over a radio or
mobile phone link and entered manually, for example.
To use bearing results from other instruments:

A localization must be open, otherwise transfer can only be made as a
single data set.
1.
Press the
External Bearing
softkey.

The menu for entering the measured values opens and initially shows
the current bearing results for the instrument itself.
2.
Select the items using the rotary control knob, press
OK
to open them,
enter the values as measured, and press
OK
to confirm:
–
Fcent:
center frequency
–
Transmitter
: Transmitter name
(optionally, you can make the selection from a transmitter in the loaded
transmitter table. Fcent is then entered automatically)
–
Value:
Data is exchanged in dBµV/m for field strength, otherwise in
dBµV
–
Latitude:
Measurement location latitude (in DegDec)
–
Longitude:
Measurement location longitude (in DegDec)
–
Azimuth:
measured azimuth value, 0° (North) to 359.9°
3.
After you have entered all the values, press the
Save External Bearing
softkey to save the bearing in the open localization.

This bearing is now part of the localization just like the bearings taken
using your own instrument.
NOTE:
Items 1 and 2 are used as well for transferring to other instruments. This
ensures that the transfer is made in suitable units.