Yes, it's another post about that little interface we all love to hate... I went through archives and didn't find anything that *quite* matched this, so I wanted to know if anyone's experienced it or has tips.
Aside from the widely reported high noise floor (it *seems* to be possible to just crank the RX volume to get past that a little) I have a couple of symptoms that are...strange at best: 1. If I have the KX3 connected to my laptop via the KX3USB cable to ACC1, and then attach the Signalink to a different USB port, I immediately experience broadband noise. Changing the IF doesn't seem to help this, and I seem to be tuning past peaks of noise all across the band. If I detach the Signalink, most of these symptoms go away (I think some of the peaks are just out there). 2. The Signalink seems to be radiating a significant amount of QRM - or the cables connected to it (but not necessarily to the KX3) are. Because I use an Alexloop, my antenna is always right next to my laptop, interface, radio, all that fun noisy stuff. Conveniently magloops have this great null directly perpendicular, so I've worked out that turning my antenna perpendicular to the Signalink - not necessarily my laptop or radio - reduces the noise floor significantly (both wideband noise and weird little blips every 150 Hz or so). I'm not actually sure at the moment whether I've checked if unplugging my Signalink makes a big difference, but evidence would suggest I should try that. This is all with the KX3 operating off of a gel cell (so no QRM there), the Signalink with the official KX3 snap-in jumper board and cables, a Macbook Air running from its internal battery, an Alexloop, and the included KX3USB cable. Any help would be much appreciated - I've seen the page suggesting some mods to the Signalink and I'm more than willing to do those if those would help with the symptoms I've been seeing here, but wanted to check if anyone thought that was reasonable (and that my diagnosis is) first. 73 Amy Wilhelm WN5FIZ ______________________________________________________________ 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 Message delivered to arch...@mail-archive.com