I've had a request from another department involved in telecommunications to revamp elevation data into GTOPO30, DTED or SRTM formats as input into a program called Radio Mobile. They are working on adding infill sites to low signal areas. Radio Mobile looks to be a program with history and a quick peruse of the message archives and tutorial sites shows there is active user community.
The reliance on somewhat dated elevation formats, e.g. they don't seem to have heard of geotiff and do everything in geographic lat/long, got me wondering about the overlap between GIS and radio signal analysis. What communities and/or software systems are there out there approach Radio Propagation Modelling from a GIS point of view? What's your assessment of their GIS "savvyness"?
EDIT: This could also be phrased as, where does someone who knows a something about GIS but nothing about radio signal propagation go to learn more?