10 Cross-mode functions
98 FieldMan Narda
10.1 Post-Processing
⇒ See 7.5.1 POST-PROCESSING on page 47.
This menu contains settings for post-processing the measurement data of broadband HF
probes. These setting options are thus limited to the operating modes of FIELD
STRENGTH, SPECTRUM and TIMER LOGGING. Two types of post-processing are
available:
• The application of a correction factor
• The conversion to display in % of the standard for measured field strengths at a
reference frequency
For evaluating probes, only the correction factor can be applied.
10.1.1 Applying a correction factor
10.1.2 Setting the reference frequency
⇒ See 7.5.1 POST-PROCESSING on page 47: Apply Correction Factor CF
When calibrating the HF probes, the measuring error at the def
ined calibration frequen-
cies is recorded and stored in the probe. If the correction is applied (Apply Correction
Factor CF = On), then the measuring error is taken into account in the measurement
result and thus a higher measurement accuracy is achieved. However, the correction can
only be applied meaningfully when measuring at a single prevailing frequency, which
must also be known. If this freque
ncy does not exactly correspond to a calibration fre-
quency, it can still be entered as a reference frequency (Reference Frequency) and the
corresponding correction factor is then determined by interpolation from the adjacent cor-
rection factors.
⇒ See 7.5.1 POST-PROCESSING on page 47: Reference Frequency
Reference Frequency provides a selection list of probe-specific calibration frequencies.
In addition, the input of any frequency is possible with
a resolution of up to 1 kHz.
The last set value in MHz is always displayed, even if the frequency no longer matches
the probe after a probe change. Only when the calibration factor or the display in % of the
standard are activated is the frequency list updated by reading from the probe data and
set to the lowest value.
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