OpenCPN has a weatherfax
plugin that can download from a
SSB radio using the sound card input of a Windows
laptop. It’s free. But it takes a bit of fiddling to tune the
radio to the right frequency. Needs an audio cable from the SSB to the computer.
There are also dead simple solutions for an
iPad as well. No programming or
cables needed but still you have to fiddle a bit with tuning the SSB radio. It’s not hard though.