NARDA EHP-50-G, Руководство пользователя

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4-10 Description
Four additional frames, Acquisition, Marker, Save and Waterfall, are
included in the Data section:
Acquisition :
spectrum is displayed in different acquisition modes.
Here is the choice between instantaneous reading and Root Mean Squared
over a certain period, which is set in the proper box. A Max Hold function is
also available. When the RMS is activated, a progressive bar appears
showing, step by step, how many seconds are already taken into account
for the calculation of the result.
Actual: instantaneous values are shown; the display is continuously
updated with new instantaneous readings.
RMS over:
square average calculated over the specified time period (sec)
is shown. This is a moving average. Ones the first time period has been
completed, oldest data is discarded to be replaced by the newest one
showing thus the average value of the latest time period as specified.
Max Hold:
the maximum field strength value of each frequency step is
retained and displayed since the Max Hold function has been activated.
Every spectral line is therefore updated only if the new value is grater than
the previously dislayed one showing thus the Maximum of each spectral
line since the Max hold function was activated.
Marker:
in this area you can select on which trace to place the Marker:
specific axis (X,Y,Z) or Total result.
Three dedicated buttons, Highest Peak, Next Peak and Previous Peak,
allow Marker positioning over peaks shown by the graph.
If activated, Limit checkbox allows displaying the Limit value corresponding
to the Marker frequency.
Save: three buttons in this area to save spectrum as a picture file (.bmp),
as a text file (.txt) or to copy the spectrum picture to the Windows Clipboard.
Auto save text: it is a functionality provided to automatically save a text file
containing the measurements data and information.