GRAPHTEC GL500 User Manual page 107

Midi logger dual
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Software
Disp: Select On to enable the FFT function.
CH: Specify the channel for analysis.
Window: Specify the type of window for frequency analysis processing.
dB Specification: Specify whether or not to use dB for the unit.
Averaging Mode: Performs averaging of the analysis channel.
Weighted Average Mode: This mode can be selected for averaging.
Number of Averages: Specify the number of averages for the averaging mode and weighted
4-32
On: Enabled
Off: Disabled
Rectangular, Hanning, Hamming, Flat Top
Off: The amplitude is displayed using the Vrms2 unit.
On: The amplitude is displayed using the dB unit.
No averaging, Vector averaging, RMS averaging, Peak hold
Linear, Exponential
average mode parameters.

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