Re: [Elecraft] KWM-380 (was K4 and Delivery Delays)
I unfortunately worked for the DoD, And we had Many of the KWM-380’s-- Many Problems ! Ray WA6VAB From: Ed W0YK Sent: Sunday, April 3, 2022 4:32 AM To: Bill Tippett; Elecraft Reflector Subject: Re: [Elecraft] KWM-380 (was K4 and Delivery Delays) I'm not surprised. The receiver is chock full of internally generated birdies. On a dead band, a bandscope looks like a major contest!73,Ed W0YK Original message From: Bill Tippett Date: 4/3/22 03:12 (GMT-08:00) To: Elecraft Reflector Cc: e...@w0yk.com Subject: KWM-380 (was [Elecraft] K4 and Delivery Delays) W0YK wrote:The KWM-380 may have been a "hot radio" in some people's minds, but I can personally attest to the opposite. I have one, along with a number of KWM-2As and S-Lines. The 380 is a horrible performer. The receiver is incredibly noisy, obstructing reception of all but the loudest signals. The audio is distorted and filtering is poor. Collins' last hurrah was a dud.Hi Ed, I don't recall ever telling you this but your 380 also had horrible TX phase noise. In the early 80s, we were located within 5 miles of each other in CO, both running amps. Whenever you transmitted on 80 or 160, the phase noise would cover the entire CW bands. I don't recall what you replaced the 380 with but I was a very happy camper when you did!I take pride that my KSYN3A-updated K3 is still one of the cleanest CW signals on the bands.73, Bill W4ZV (ex-W0ZV) __ 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 wa6...@gmail.com __ 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
Re: [Elecraft] KWM-380 (was K4 and Delivery Delays)
I'm not surprised. The receiver is chock full of internally generated birdies. On a dead band, a bandscope looks like a major contest!73,Ed W0YK Original message From: Bill Tippett Date: 4/3/22 03:12 (GMT-08:00) To: Elecraft Reflector Cc: e...@w0yk.com Subject: KWM-380 (was [Elecraft] K4 and Delivery Delays) W0YK wrote:The KWM-380 may have been a "hot radio" in some people's minds, but I can personally attest to the opposite. I have one, along with a number of KWM-2As and S-Lines. The 380 is a horrible performer. The receiver is incredibly noisy, obstructing reception of all but the loudest signals. The audio is distorted and filtering is poor. Collins' last hurrah was a dud.Hi Ed, I don't recall ever telling you this but your 380 also had horrible TX phase noise. In the early 80s, we were located within 5 miles of each other in CO, both running amps. Whenever you transmitted on 80 or 160, the phase noise would cover the entire CW bands. I don't recall what you replaced the 380 with but I was a very happy camper when you did!I take pride that my KSYN3A-updated K3 is still one of the cleanest CW signals on the bands.73, Bill W4ZV (ex-W0ZV) __ 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
[Elecraft] KWM-380 (was K4 and Delivery Delays)
W0YK wrote: The KWM-380 may have been a "hot radio" in some people's minds, but I can personally attest to the opposite. I have one, along with a number of KWM-2As and S-Lines. The 380 is a horrible performer. The receiver is incredibly noisy, obstructing reception of all but the loudest signals. The audio is distorted and filtering is poor. Collins' last hurrah was a dud. Hi Ed, I don't recall ever telling you this but your 380 also had horrible TX phase noise. In the early 80s, we were located within 5 miles of each other in CO, both running amps. Whenever you transmitted on 80 or 160, the phase noise would cover the entire CW bands. I don't recall what you replaced the 380 with but I was a very happy camper when you did! I take pride that my KSYN3A-updated K3 is still one of the cleanest CW signals on the bands. 73, Bill W4ZV (ex-W0ZV) __ 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
