Conditions this week were very poor, earlier at around 0830 signals on 80m were strong from North and South America but that didn't equate to good inter-G propagation a couple of hours later.
Some stations struggled to hear each other with apparent high band noise, this prompted a discussion on the effectiveness (or otherwise) of the K3 noise reduction. My noise level was a measured -110 dBm (S3) from my Perseus SDR, so there wasn't a lot of noise to deal with. The consensus being the K3 noise reduction wasn't as good as many expected it to be, although it does work. I only run an NR setting of F1-1 which seemed to be the same as others on the net. One station mentioned using the RX equaliser to boost mid range tones being quite good in high band noise conditions. Running both the EQ boost and NR can produce awful screechy audio. Those stations who had tried the latest field test (not beta release) of K3 f/w 2.95 found it worked well enough for most purposes, I have tried it and acknowledge it has better SSB ALC control than 2.82 (the current beta release) but still find it prone to occasional excessive peaks when running a linear in the 20 ~ 30 Watt drive level range on SSB. There was a brief discussion on the 5 MHz band pass tuning "mod" and the problem of needing to remove the 2nd receiver in order to access the trimmers. Stations this week were: G4LWA, Alan G0VGS, Ian G0MJW, Mike G3YPZ, John G4JTR, Vin GM3SEK, Ian 73 Dave, G4AON K3/100 #80, f/w 2.38, Acom 1000 linear, dipole antenna. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
