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36 lines
1.4 KiB
Plaintext
36 lines
1.4 KiB
Plaintext
// Status=review
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Set up the Wide Graph (also called the Waterfall).
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It is important to set appropriate lower and upper
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audio frequency limits for the Wide Graph because these limits define the FT8 decoder's search window:
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- Set *Start* = 100 Hz.
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- Set *Bins/Pixel* = 5. Smaller/larger values make the Wide Graph cover a smaller/larger
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frequency range.
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- Use the mouse to grab the left or right edge of the *Wide Graph*, and
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adjust its width so that the upper frequency limit is about 3300 Hz.
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The *N Avg* setting controls how many spectra are averaged to produce each line in the spectrogram.
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Smaller values make the spectrogram update more frequently, resulting in signals being more spread
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out in the vertical (time) direction.
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On the other hand, larger values make it easier to detect very weak signals:
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- Set *N Avg* = 2.
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The *Palette* setting controls the color scheme used for the spectrogram:
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- Set *Palette* = Fldigi
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When *Flatten* is checked, WSJT-X attempts to correct for rolloff at the lowest and highest
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frequencies in the spectrum:
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- *Flatten* = checked
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- Select *Cumulative* for data display
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- Set the *Gain* and *Zero* sliders for the waterfall and spectrum to near midscale
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The *Spec* setting determines what fraction of the vertical extent of the Wide Graph will
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be used for the line plot of the spectrum. Setting *Spec* to 0 will eliminate the line plot.
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- Set *Spec* = 25%
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