NARDA NBM-550, Operating Manual

Page: 61 / 156

5.3 Measuring the spatial average
Narda NBM-550
51
Measuring values continuously
Making the measurement
✓
You have selected
Continuous
as
Spatial AVG Mode
.
1. Press the
Spatial Average
key.

Spatial
measurement mode is displayed.
2. Press the
Start
key.

The measurement starts. The elapsed measurement
time is shown top left in the display.
3. Move the NBM-550 evenly around the space to be
measured. Press the
Stop
key to end the measurement.

Pos.1
displays the measured average value.
4. You can then
– add positions to record further average values or
– store the entire measurement.
Note:
The NBM-550 emits an audible signal every second to
assist you in moving it evenly.
Adding a position
1. Press the
Add Position
key.
 Pos. 2
is displayed,
the elapsed time counter shows
00:00 s
.
2. Record new measured values as described above.
3. You can add more positions and record more results if
necessary.

Avg Pos
shows the average value for all the positions
measured, along with the positions used to form the
average (e.g. 1-4 for positions 1 through 4).
You can store the measurement results when you have
recorded all the measured values.
Storing the results

Press the
Store
key.

The average of all positions and the averages for
each separate position are stored.