6 Functions Common to More Than One Operating Mode
86 SRM-3006 Narda
Two methods can be selected:
Automatic isotropic
This is the usual setting for isotropic antennas. All three axes are measured
automatically and the overall result is calculated.
Manual isotropic
As with a single axis antenna, each of the three axes can be measured
separately with this setting. However, it is not necessary to turn the antenna
in the direction of each axis. The procedure is as follows:
✓ A three axis antenna is connected directly or via a cable to the
SRM-3006.
1. Select the Manual Isotropic function from the Axis menu.
2. Press the Start X-Axis softkey. When the measurement finishes, press
the Stop X-Axis softkey.
3. Do the same for the Y axis and Z axis.
4. Press the Show Isotropic softkey to display the measurement result.
To make another measurement:
Press the Start X-Axis softkey and proceed as described above.
To change the settings:
1. Press the Change Settings softkey and then change the settings.
2. Press the Back to Axis softkey (highlighted in yellow) to return to
measurement mode.
To finish manual isotropic measurement:
⇒ Press the Axis softkey and select Automatic Isotropic.
6.6.2 Measurement using a single axis antenna
Isotropic measurement using a single axis antenna is much more time-
consuming than using a three axis antenna because each of the three axes
has to be measured separately, one after the other.
The SRM-3006 provides support for sequential measurements using single
axis antennas and for calculating the isotropic result.
The sections below explain how such measurements can be made.
You can of course use any suitable standard antenna and corresponding
cable as well as the items supplied with the instrument.
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