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refresh of the spectrum.
• Save / Recall: this function allows the user to make screen captures of the spectrum
diagram, including top and bottom bars, as well as the markers. The Recall function could
be used to visualize stored screen-shots, selecting them among the saved files list.
• HELP: switches the meter to the Auto-discovery function, with which the meter will try to
identify automatically the tuning parameters for the pointed digital carrier. First of all, the
meter tries to determine the modulation type among those it can manage; once the
modulation has been identified, the meter will determine (in a certain range) the exact center
frequency of the carrier.
Last, the meter will try to demodulate the signal, either setting different Symbol rate values
(for SAT and CATV signals) or Channel BW for DVB-T/T2 channels.
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