NARDA FieldMan, User Manual

Page: 67 / 126

8.3 SPATIAL AVERAGE
Narda FieldMan
67
8.3 SPATIAL AVERAGE
The
SPATIAL AVERAGE
operating mode enables the spatial averaging of measured
field strength values over 1 to a maximum of 100 measuring positions. It can also be use -
ful to measure at a single measuring position, in order to record the field strength in a
specific spatial volume there, averaged over the desired measuring time, by continuous
movement of the measuring probe.
The spatial averaging is determined by quadratic averaging over all measured positions
and displayed as a horizontal line in the bar graph. The measurement per position can be
stopped automatically after a preset time or manually. An adjustable delay allows the per -
son performing the measurement to leave the measurement site before the measure -
ment starts.
8.3.1 Measurement settings
The
MEASUREMENT SETTINGS
menu provides quick access to the most important
measurement settings for the selected operating mode.
Function
1)
Description
Zero
Offset correction (HP-01 probe only)
⇒
See
10.3 Offset correction – Zero on page 102
.
Frequency Span
Frequency range
Field
Electric or magnetic field
Range
Measuring range
Unit
Display unit
Low Cut Filter
Filter for suppression of low frequencies (low cut filter)
Detector
Detector type
Measurement Time
Stop measurements:
•
Manual
: The measurement must be ended manually.
•
5 s, 10 s...
: The measurement stops after the
preselected time.