Greaat! This is NOT a big deal to me… let me know if I can help…
Tom W4KX From: Wayne Burdick Sent: Friday, June 18, 2021 6:09 PM To: Tom Doligalski Cc: [email protected]; [email protected] Subject: Re: [Elecraft] K4 observation We’re testing a fix. W ---- elecraft.com On Jun 18, 2021, at 2:21 PM, Tom Doligalski via Elecraft <[email protected]> wrote: Interesting, and possibly related (and I kind of forgot till I read Jim’s email). Noticed that when the antenna are disconnected, and the K4 turned off, I hear a local TV station in the headphones… Never happened on the K3. Headphones connected to the rear panel jack. Gonna get out the ferrites… Tom W4KX Sent from my iPad On Jun 18, 2021, at 2:07 PM, Jim Brown <[email protected]> wrote: On 6/18/2021 3:58 AM, Tom Doligalski via Elecraft wrote: For years I used a Radiosport headset with my K3. Worked like a champ. Since I received my K4 I noticed annoying RFI-induced feedback on the Radiosport when operating SSB on the K4. Monitor is set to 0. I would blame that on the radio. Elecraft has a long history of Pin One Problems, which are a well known cause of RFI. I first alerted Wayne to this at least 15 years ago. Elecraft is not unique in the regard -- the last time I was at Dayton, several years ago, EVERY radio on display in booths that I was able to look at had obvious Pin One Problems. The following links were written nearly 20 years ago. Pro audio has mostly cleaned up its act. Ham radio is still in the dark ages. http://k9yc.com/Pin_1_Revisited.pdf http://k9yc.com/Pin_1_Revisited_Part_2.pdf 73, Jim K9YC ______________________________________________________________ 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] ______________________________________________________________ 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]
