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4.19.6 - RF Waterfall Palette

Palette Editor

SdrDx allows you to adjust the colors of the waterfall using EDP. The edit palette dialog is shown at the right; basically, you select a color from the list at the left, adjust its R, G, B (RGB) components, optionally adjust its offset using O and then either accept the result, or not. Please be aware that main panel I and C affect how these palettes are applied in the waterfall.

Let's talk a little bit about what C and I do.

I, or "intercept", moves signals "up" through the waterfall palette, so as you increase I, the signal is reported with colors that would otherwise indicate "stronger" signals.

C increases the amplitude of the signal within the waterfall such that for any particular signal, the number of palette colors the signal extends across increases as C is increased.

By using these two controls, you can make signals of interest start over a wide range of colors in the palette, and from there, extend over a varying number of colors in the palette.

Once you have a color set you like, you can save them using SVP. Once saved, you can reload them using LDP. - Auto-load of Waterfall Palette

If you save the palette under the name pal_default.wfp in your home directory and you leave PAL on, then SdrDx will automatically load those waterfall colors when it starts.

Note: The waterfall palette editor is designed to edit palettes with exactly seven control colors, which, generally speaking, is enough to cover an extremely wide range of color schemes.

SdrDx can, however, deal with palette files that contain far more than 7 control colors. See the waterfall file format for examples. Also note that if you load such a palette, and then open the editor, the large palette will be replaced with a 7-color standard palette.

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