HI Tom It seems to happen more when the ATU needs to work harder to find a match, I have a 40m Windom up here and I can load it on all bands with the K2, but it has to work hard to get me a match on 160m/80m and this is normally when it happens, its not a problem since I put a float battery across the PSU's output. I have had it mess up some of the settings too on my K2 when it happens, mostly on the DSP settings like turning the RTC menu option to OFF All the best Paul M0BMN
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Tom Althoff Sent: 08 December 2005 10:34 To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K2/100 RFI problem using Astron 20A I have the Ten-Tec Orion supply which is an Astron 20A and also experienced that symptom as recently as yesterday. When I run on a car battery I do not notice it. After the reset I lost my sidetone. Luckily I asked Don W3FPR for advice before I tore the radio apart. He pointed me to the sidetone source menu and I got it working again. My problem ONLY occurrs on 40M. Is yours band specific Paul? My DC wire between the Astron and the K2 is 18 inches which is how far apart I keep the units. It also has a large ferrite filter around it. Tom K2TA Greenwood Lake, NY K2/100 #1117 ----- Original Message ----- From: "Paul Webb" <[EMAIL PROTECTED]> To: <elecraft@mailman.qth.net> Sent: Thursday, December 08, 2005 4:31 AM Subject: RE: [Elecraft] K2/100 RFI problem using Astron 20A Hi I thought I may have had a RFI problem with my K2/100 that I recently bought but it wasn’t that. When I hit the tune button sometimes the K2 would start tuning and then half way through do a reset. In the end I measured the current into the 100 watt stage and found that as the tuner tried to find a match the current drawn would Go up and down as you would expect as the load changes. But I found that my 20 amp PSU could not cope with some of the very short current drain that it was asked for and dropped its voltage which caused the k2 to reset half way through its tune cycle . I was going to look for a better PSU , till I found how much a new one was! So in the end I have a 17AmHr Gell pack here that I float across the PSU’s output this will help the PSU cope with the odd high current pulse and also act as a standby Supply in the event of a mains failure. I guess others have found the same problem? 73 Paul M0BMN -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.362 / Virus Database: 267.13.12/192 - Release Date: 05/12/2005 _______________________________________________ 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 -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.362 / Virus Database: 267.13.12/192 - Release Date: 05/12/2005 -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.362 / Virus Database: 267.13.12/192 - Release Date: 05/12/2005 ___________________________________________________________ How much free photo storage do you get? Store your holiday snaps for FREE with Yahoo! Photos http://uk.photos.yahoo.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
