Re: [Elecraft] K3: A funny thing happened
And you are sure the antenna and coax connections are O.K.? Dave W7AQK - Original Message - From: Fred Jensen [EMAIL PROTECTED] To: Elecraft Reflector elecraft@mailman.qth.net Sent: Thursday, May 29, 2008 3:27 PM Subject: Re: [Elecraft] K3: A funny thing happened Forgot one thing about the 30m VSWR situation: While the ATU was trying to tune the antenna, it started at something like 25-1. It got down to about 6-1 after quite a bit of noise, but all during this time my external wattmeter indicated zero power output. On all the other bands, it shows a low power while tuning. It also produced no power when I keyed it after tuning. 73, Fred K6DGW - Northern California Contest Club - CU in the 2008 Cal QSO Party 4-5 Oct 08 - www.cqp.org ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3: A funny thing happened
A strange subject, but this one has me baffled. I use the K3 with an Icom AH-4 tuner (tuning manually initiated) on the roof above me and below the centre of a long doublet. I've used this configuration with several radios over the last 5 years or so and it's never given me grief. I was on 30m cw, swr about 1.1 when suddenly I noticed my output drop from 100W to about 40W and the swr had risen to 4 or so. I hit the little button on my homebrew unit and the AH-4 retuned, but still with a high swr. The odd thing was that it was clear that as a result of this that the other station could no longer hear me. We were about 589 both ways so a 3 or 4dB drop in power would not cause that. I am wondering if I was transmitting somewhere else, and not on 30m. I changed to other bands and they all tuned fine. Went back to 30m, still the same apparent high swr. Then as suddenly as the problem had arrived it departed. As I was sending a chain of dots in frustration, the swr dropped right back down to just above 1.0 _without_ me having to initiate the tune- and that's what I don't follow! Hope that makes more sense to someone than it does to me. I'm really enjoying the K3 and even my wife prefers it to the K2 or TS-480, as she derives pleasure from spinnning the vfo whilst on the telephone at my desk! She still thinks the IC-7400 was prettier though! 73 Stephen G4SJP ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3: A funny thing happened
I was on 30m cw, swr about 1.1 when suddenly I noticed my output drop from 100W to about 40W and the swr had risen to 4 or so. Do you have a KAT3 installed? Doesn't matter if it was bypassed or not. Several of us have had similar problems. In my case, this occurred on 20 meters, and then again on 30 meters. And while the SWR wound up recovering OK on those bands, I wound up with a residual SWR on 17-10 meters that would not go away - and I only resolved this by having the KAT3 replaced. I bring this up each time someone reports something similar, as I believe there is something here that needs to be addressed. Phil - AD5X ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3: A funny thing happened
No, I don't have the KAT3 installed, but it sounds as if it might be the same sort of thing. Thanks anyway, perhaps it won't happen again! 73 Stephen On 29/05/2008 16:54, Phil Debbie Salas [EMAIL PROTECTED] wrote: I was on 30m cw, swr about 1.1 when suddenly I noticed my output drop from 100W to about 40W and the swr had risen to 4 or so. Do you have a KAT3 installed? Doesn't matter if it was bypassed or not. Several of us have had similar problems. In my case, this occurred on 20 meters, and then again on 30 meters. And while the SWR wound up recovering OK on those bands, I wound up with a residual SWR on 17-10 meters that would not go away - and I only resolved this by having the KAT3 replaced. I bring this up each time someone reports something similar, as I believe there is something here that needs to be addressed. Phil - AD5X ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3: A funny thing happened
Forgot one thing about the 30m VSWR situation: While the ATU was trying to tune the antenna, it started at something like 25-1. It got down to about 6-1 after quite a bit of noise, but all during this time my external wattmeter indicated zero power output. On all the other bands, it shows a low power while tuning. It also produced no power when I keyed it after tuning. 73, Fred K6DGW - Northern California Contest Club - CU in the 2008 Cal QSO Party 4-5 Oct 08 - www.cqp.org ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
