Hello, I was totally in error when i thought it was an encoder generated noise. I'm 100% ok with an internal (SPI?) bus generated noise; i've just tested around 28.005MHz but with PowerSDR tuning instead of VFO knob; the noise is there but disappear when no frequency change.
73 QRO fr Rudolf, HB9ARI GW0ETF wrote: > Wayne et al, > > I too can confirm the existence of what intuitively sounds like encoder > clicks on the bottom end of 10m as well as the lower ends of 15 and 6m. Most > times they are masked by antenna noise (and some pc low level hash here on > 6...!) but it does seem to vary in 'severity' so I was interested in your > comments about I/O devices etc. The bottom end of 10 does seem consistently > the worst though. > > A couple of observations from here:- > > 1/ When switched on both RIT and SUB encoders produce clicks. > 2/ The Main encoder produces clicks also in the SUB rx and vice versa. > 3/ SHIFT/LO and HI/WIDTH controls also produce clicks. > > DSP helps and ofcourse it doesn't ultimately interfere with a qso. I've only > noticed this since using 10m and then not all the time and I've yet to > double check the mechanics/wiring inside the radio. > > 73, > > Stewart Rolfe, GW0ETF > > K3 #145 (V3.19 and pretty well modded up to date) > > > wayne burdick wrote: > >> John, >> >> I've noted your report of VFO tuning noise on 10 m, and will look into >> it further when I get back from vacation. Sounds like re-radiation of >> SPI bus tuning data, and this could be frequency specific. It might >> also vary with the type of antenna, ground, and other I/O devices >> connected to the rig. Usually atmospheric noise masks any digital >> switching noise, which is typically at an extremely low level. >> >> >> >> > > ______________________________________________________________ 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
