Greetings, I am the relatively new owner of a KX3 and I've discovered somewhat of a problem: The switching power supplies that supply power to at least my laptop, an external display, the router, the desk lamp and possibly my speakers create S5-7 noise on all bands and S9 noise on some of them.
I unplugged the power cable that controls the desk and the noise dropped to an S1-2. I plugged the main power cord back in and then started by unplugging individual items, keeping track of what I was plugging in and what the noise level was like. I placed an order on Amazon for some snap on ferrite beads and they should be here today. Having never had to track down the source of noise like this, I am unsure of where to place the beads to have the maximum effect to clear up the signals so I can enjoy operating from home... I'll add that I first noticed the high amounts of noise after I had strung up a wire inside the office because something had happened to my G5RV on the roof. I am suspecting bad coax on the G5RV as I have it working by playing with the coax. Neither of the PL-259s on my Comet CTC-50 window passthrough jumper (Landlord and XYL say no holes in the house.. :() are tightened down and I can hear stations in the noise. Tighten them down and I get silence. If I unplug the antenna from the side of the KX3, I get silence (well, unless the volume is up in the 30's or higher and I have the speakers connected) I can still hear noise but it doesn't register on the S meter. If anyone could help out a still somewhat new General with this, it would be appreciated. 72, Joshua Gould K8WXA EM89pn KX3# 7480 NAQCC # 7704 ______________________________________________________________ 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]
