The words "blur" and "mush" are confusing to me. The effect I heard whilst running on 80m during CQWW (CW) 2010 was the following:
A very slight raise in the noise floor then a random partial letter a few seconds later. If this is what is meant by "blur" and "mush" then I have noticed the effect. I was running and had just finished my last CQ call (I was considering a QSY) when I first noticed it. I decided to call CQ again and noticed the same effect again. The penny finally dropped that the slight rise in noise floor was actually a pile-up of similar strength stations calling me (all S5, with S4 noise floor). To test my theory I sent back 2 letters which clearly appeared on their own 2 or 3 seconds after my last CQ call and low and behold a single US station came back Q5. I worked another 10 or so stations in exactly the same way until the effect disappeared as did the pile-up (probably all pretty hacked off with how slow I was working through them). I later discovered I had been spotted by KC1XX. The reason for the random partial letter a few seconds after your CQ call, is that the pile up seems to "*disappear*" until only the last few callers are still calling. Usually these stations have the longest callsign or sent their callsign twice. The difficult thing about this effect is that first you have to realise what is going on. If you are calling CQ with hardly any gap between each call, you will not know the effect has taken place (you may be unaware a pile up is there until it has thinned out), as tail end callers will only become apparent when you are transmitting again. You have to pause between CQ calls (much longer than usual) before you get the hint of what is going on. Not wanting to have to pause long enough between every CQ call to catch this effect again, I haven't noticed it recently (ignorance is bliss). 73 Doug MM3T -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-blur-was-a-no-show-during-ARRL-10m-tp7087044p7101115.html Sent from the Elecraft mailing list archive at Nabble.com. ______________________________________________________________ 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
