General description
WEFAX decoder detects the TIROS/NOAA APT satellite weather fax signal. The signal has two parts: infra red and visible light. ‘Reset’ resets the decoder and received picture can be saved using ‘Save’.
Configuration
Pressing the Config button opens the following configuration dialog.
Parameters
Mode
With ‘Visible Light’/’Infra Red Light’ switch, you can choose whether visible light or infrared picture will be received.
Scroll
If the scroll checkbox is selected, a picture is scrolled from the bottom up. Otherwise drawing is started at the top and re-started at the top, when the picture area is full.
Post Processing Functions
Post processing functions can be used to correct properties of the picture after receiving. The post processing functions are not enabled during receiving.
Start
If the picture is sifted in horizontally, the start slider can be used to set the left margin in the correct place.
Sampling
If the picture is slanted, the sampling slider is used to correct the slanting.
Intensity
The intensity of the picture can be changed with the intensity slider.
Contrast
The contrast of the picture can be changed with the contrast slider.
Save
The save button saves received picture into file as bitmap format.
Reset
The reset button resets the decoder and clears the window.
