Hello, Last night I was trying to use my KX3 with 2M module to decode weather satellite images. I have been working at this for a while now with very limited success. I am using Gnome predict to find the satellites and control the radio using rigctld. I am using xwxtoimg to decode the sounds coming off the radio. The antenna is a Quadrifilar Helix antenna. Often I will get a very noisy picture, with what appear to be clouds near the middle and increasing noise toward the top and bottom edge. I have the FM deviation as high as it will go in the menu. Finally last night I was near(life is busy, usually I set it up and get called away) the radio as a satellite was entering the horizon so I unplugged the radio from the computer and listened. I could very clearly hear the signal, but as the satellite got closer and closer to over head as shown on gnome predict the audio started muting. It seemed to mute as the frequency was being adjusted by gnome predict. By default the frequency is adjusted every 1 second. When I changed it to every 2 seconds it seemed to get better. Any idea why this is happening and is there any sort of workaround? It doesn't seem to happen until there is a strong signal. The software seems to be continuously adjusting the radio's frequency even well before the satellite comes into view and the static doesn't mute. Incidentally, initially I think squelch was set to a 3, I ended up setting it to 0.
Any ideas? What is the theoretical maximum deviation for FM this module can do? Be helpful for this kind of thing to widen it up more... Incidentally, the satellites transmit in the vicinity of 137MHz. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
