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33 lines
1.4 KiB
Plaintext
33 lines
1.4 KiB
Plaintext
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// Status=review
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The following controls appear at the bottom of the Wide Graph window:
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image::images/wide-graph-controls.png[align="left",alt="Wide Graph Controls"]
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* *FFT Bins/Pixel* controls the displayed frequency resolution. Set
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to 1 for the highest possible resolution, or to higher values to
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compress the spectral display. Normal operation with a convenient
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window size works well at 2 to 8 bins per pixel.
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* *N Avg* is the number of successive FFTs to be averaged before
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updating the spectral display. Values around 5 are suitable for
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normal JT9 and JT65 operation.
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* *Gain* and *Zero* control the scaling and reference level for
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waterfall colors. Values around 0 for both parameters are usually
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about right, depending on the input signal level and your own
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preferences.
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* *JT65 nnnn JT9* sets the dividing point for wide-band decoding of
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JT65 and JT9 signals in JT9+JT65 mode. The decoder looks for JT65
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signals below nnnn Hz and JT9 signals above that frequency.
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* *Current / Cumulative* controls the graphical display in the bottom
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one-third of the Wide Graph window. ** Current is the average
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spectrum over the most recent N Avg FFT calculations. ** Cumulative
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is the average spectrum since the start of the current Rx sequence.
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* With the exception of *JT65 nnnn JT9*, controls on the Wide Graph
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window affect only the graphical displays — they have no effect
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on the decoding process.
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