24 Oct 2014

RA3APW - 100mW 10m WSPR beacon

Karen RA3APW's 100mW, GPS controlled, Ultimate 3, Moscow WSPR beacon (2443km) that uses just a short whip antenna in his shack is coming in well again today. He is getting plenty of WSPR spots over 2000km right across Europe today. I am seeing an 8dB variation in his S/N (-14dB best, -22dB worst) and I think I tend to get him worse than some others in the UK who may have better receivers and antennas. Karen carefully measured his power so his 100mW is genuine. -14dB S/N suggests that at times just 5mW would be enough.
RA3APW on 100mW 10m WSPR today - 9 spots already.
UPDATE 1532z:  RA3APW has now been spotted 13 times at up to a very strong -5dB S/N. This level suggests 1mW would have been copied, possibly 250uW. Amazing.

No comments: