NARDA FieldMan, Руководство пользователя

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8.5 SPECTRUM
Narda FieldMan
81
8.5.4 Graphic display
Properties of the graphical representation:
X-axis
• The entire frequency range up to the set span is always displayed (
MEASUREMENT
SETTINGS
>
Frequency Span
).
• The frequency scaling can be set to either linear from 0 Hz or logarithmic
(
MEASUREMENT SETTINGS
>
Frequency Scale
).
Y-axis
• The field strength is displayed on a logarithmic scale.
Measuring curve
•
Representation:
Maximum of one measuring curve (X, Y, Z axis or isotropic)
•
If standard is selected:
The associated limit value curve is additionally displayed.
The field strength axis is scaled automatically. Some standards are only defined from
higher frequencies and can therefore only be displayed partially or not at all.
•
% unit selected:
Spectrum is displayed normalized, related to the selected standard.
•
If no standard is selected (Standard = None):
A message prompts to select a
standard.