On Thu, Mar 15, 2012 at 8:11 PM, Simon Lewis <[email protected]> wrote: > They are chirpsounders... ================= Ah yes, now I remember hearing that name. Thank you, Simon Those are the sweeping beacons I mentioned.
Google on 'chirpsounder' and you'll find a strange world of propagation analysis stuff you may not have known about or imagined. Peter Martinez G3PLX, one of ham radio's resident geniuses (inventor of PSK), seems to have started the ball rolling with a software app and analytical framework. Others have built on it to create a number of esoteric tools to figure out what's going on up there in the sky. Of course, what Jim was hearing that prompted all this may be something different, like a faulty cable repeater, and may have nothing to do with chirpsounders. But some of the ones I hear definitely are. Tony KT0NY -- http://www.isb.edu/faculty/facultydir.aspx?ddlFaculty=352 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
