Great story, Stan. Now you know why the K3/K3S/KX2/KX3 all have data modes you can use without a computer :)
73, Wayne N6KR > On Nov 19, 2017, at 4:23 PM, stan levandowski <[email protected]> wrote: > > Most people on this Reflector are well educated and intelligent. Apparently, > I'm the exception because this one got by me. I'm only owning up to this in > the hope that it might help someone else on the Reflector. > > For the last couple of years I've been bothered by a high background noise > level. It happened on my K1, K2, K3, KX2 and KX3. I attributed this to > the fact that my antenna has been in my attic for the last fifteen years and > propagation hasn't been good lately. > > > I just got official permission from the HOA to install an end fed wire > outside. I was thrilled. I put it up. The darn thing wasn't any better > than the attic doublet. Noisy as heck! What a letdown! > > > So I'm laying in bed last night reflecting on how my little KX1 was the only > Elecraft radio that never had noise problems and seemed to have a receiver > quieter than my K3. > > > Whoa! The KX1 always ran on batteries...could it be????? > > > I just took delivery on a brand new Kx33 Low RFI power supply a couple days > ago. It was advertised in the last QST. Previous to that, I've been using a > Samlex 1235M. For the heck of it, I connected my K2 to an SLA battery and > the noise was still there. But when I disconnected the Kx33 power supply > from the wall, the noise level dropped dramatically. Then I switched to the > Samlex and the noise came back. Back on the battery, the noise dropped again > as long as the power supplies were unplugged and dead. > > > I have a laptop next to the computer. When I pulled the plug on the laptop > supply, the rest of the noise went away. I was down to S0/S1 and CW signals > were popping out all over the band again. Running the computer on its > internal battery did NOT contribute any noise. It was the computer power > supply. > > > Now that I am totally on batteries, I also appear to be immune from both the > gas furnace and the dishwasher motor both of which caused me problems when > using the AC supplies. YES, I HAD CHOKES ON ALL SUPPLIES, CABLES, WIRE. > > > I've been on the air all day with my new outside antenna, on battery power, > making contacts near and far and I feel like I've hit the jackpot. Since I'm > totally QRP and CW, being limited to batteries is not an issue. > > > If you're going to check your own supplies out, remember they've got to be > OFF/UNPLUGGED from the wall. Just disconnecting them from the radio/computer > isn't enough. It's RF. > > > 73, Stan WB2LQF > > > > > > > 1 > > ______________________________________________________________ > 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 > Message delivered to [email protected] ______________________________________________________________ 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 Message delivered to [email protected]
