That would not be a meaningful test for me Steve. When I use the tuner on 160 meters I use it to match the input to my amplifier and I do not use a tuner between the amp and the inverted L. The SWR is 3/1 or less and the tube type amp handles that fine. The impedence of the input to the amp if dependent on the Tune and Load settings more than anything else that varies. I seldom use the KAT3 to tune an antenna as I run the L with an 80 meter trap on 80 the same way that I do on 160. On 40 thru 6 I use the SteppIR beam and it tunes to frequency with its own micro processor controller. I really can't tell any difference in the receive level between the KAT3 and Bypass. I did use the L as an all band antenna for three months after Ike broke my SteppIR, but it never occurred to me that the KAT3 had the memory so I just punched the button when the SWR got high and didn't give it any thought. Willis 'Cookie' Cooke K5EWJ
________________________________ From: Steve Ellington <n...@carolina.rr.com> To: WILLIS COOKE <wrco...@yahoo.com>; d...@w3fpr.com Cc: callen1155 <callen1...@yahoo.com>; elecraft@mailman.qth.net Sent: Wed, February 24, 2010 5:59:32 PM Subject: Re: [Elecraft] Thoughts on internal vs external ATU for K3 Cookie Now switch back to 160m. Don't touch anything. Is your receive level ok? Now transmit....Did receive level improve? Did the tuner go back to it's 160m setting WITHOUT transmitting at all? Just curious. Steve N4LQ ----- Original Message ----- From: "WILLIS COOKE" <wrco...@yahoo.com> To: "WILLIS COOKE" <wrco...@yahoo.com>; <d...@w3fpr.com> Cc: "callen1155" <callen1...@yahoo.com>; <elecraft@mailman.qth.net> Sent: Wednesday, February 24, 2010 4:51 PM Subject: Re: [Elecraft] Thoughts on internal vs external ATU for K3 Well, I switched my 160 inverted L to 15 meters and tried it. The first pass through the SWR would jump about every 20 khz and I would need to retune, the second pass the SWR stated low as advertised. After a year and a half and 7,000 plus Qs I still learn something new about the K3 pretty often. I guess most of the time I tune my SteppIR and when I am on 80 and 160 I usually am using an amp, so I never noticed. Now it it would self initiate the tuning at about 1.5 SWR it would have it all! That all said, the only thing left is K3, great rig, KAT3, great tuner, if you don't own one, sell your Kaycom and get one! Willis 'Cookie' Cooke K5EWJ ________________________________ From: WILLIS COOKE <wrco...@yahoo.com> To: d...@w3fpr.com Cc: callen1155 <callen1...@yahoo.com>; elecraft@mailman.qth.net Sent: Wed, February 24, 2010 3:29:31 PM Subject: Re: [Elecraft] Thoughts on internal vs external ATU for K3 I do have a KAT3 and have never owned a KAT2 or KAT100. My owners manual is the one that came with the K3 in June of 2008. It does not say anything except pushing the ATU Tune button. What you say is news to me! Willis 'Cookie' Cooke K5EWJ ________________________________ From: Don Wilhelm <w3...@embarqmail.com> To: WILLIS COOKE <wrco...@yahoo.com> Cc: callen1155 <callen1...@yahoo.com>; elecraft@mailman.qth.net Sent: Wed, February 24, 2010 3:09:09 PM Subject: Re: [Elecraft] Thoughts on internal vs external ATU for K3 Cookie and all, That is *not* true for the KAT3 (it was for the KAT2 and KAT100). Look on page 22 of the new owners manual. The K3 saves up to 30 ATU setting for both antennas on every band. However, if you have not yet done so, you will have to do a TUNE at several frequencies throughout the band so the settings are recorded. If you change the antenna that is connected to either ANT1 or ANT2, you have to do that all over again - but once tuned, the settings for that band portion will be retained. Let's see -- 30 settings on a wide band like 80 meters (500 kHz wide), that means you can have a different setting for every 16.67 kHz segment of 80 meters. That should handle even the most narrowband antennas. Similarly 10 meters is 1.7 MHz wide, so the KAT3 can remember a unique setting every 56.67 kHz, and on 6 meters (4 MHz wide), every 133.33 kHz. Not too bad. The band segment boundaries may not be on exactly the intervals that I have stated - I simply divided the width of the band by 30 to get a general idea of the spacing, but in any case it should be quite adequate. 73, Don W3FPR WILLIS COOKE wrote: > You don't have to if you go back to the same frequency, but if you were on > the cw band and go back to the phone band you might, depending on if the load > changes. It does not seem to remember the settings for frequencies within the > band, but it is just the push of one button and two or three seconds to tune > again. > Willis 'Cookie' Cooke K5EWJ ______________________________________________________________ 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 ______________________________________________________________ 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 -------------------------------------------------------------------------------- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.733 / Virus Database: 271.1.1/2707 - Release Date: 02/24/10 02:34:00 ______________________________________________________________ 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
