Jim, W0EB wrote:
> Now, the main observation. There were an awful lot of "Alligator" stations > out there \ > that don't have very good receivers. If I could decode the signals, I called > them. \ > Many of the weaker signals came right back to me, but an awful lot of the S9+ > \ > stations couldn't seem to hear anything (not just me, but a lot of stations). I suspect this particular problem doesn't have much to do with their receivers. I believe it may be characteristic of RTTY, caused by the presence of multiple stations responding to a CQ. In CW or SSB, the CQer can often pick out one or more calls by ear from a pileup, with the help of small differences in tone/pitch, speed and signal strength. In RTTY, if none of the responders' signals is strong enough to dominate the input to the decoder, the operator is likely to see only garble on his screen and not be able to pick out any call signs until the pileup thins out. I believe this may be why the problem seemed to be worse with louder stations - they are the ones who are most likely to attract a big pileup every time they CQ. 73, Rich VE3KI ______________________________________________________________ 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
