Hi George, A 13:1 SWR is what you might measure on 50 MHz looking into 50 feet of RG8 with NOTHING attached to the far end. From a reasonableness and efficiency standpoint one should not plan anything more than 3:1 as a normal load for a coax in coax out tuner. Less than that as frequency goes up.
Particularly 10m and above can have quite a bit of loss if not operated well-matched (1.5:1 or less) over coax long enough to go from a shack outside and up to an elevated antenna. An antenna tuner is not a remote trouble neutralizer. Time to find out what is busted in the antenna up there, or if the coax is cut or crushed. Good luck on chasing down the trouble. Been there done that for sure. :>) 73, Guy K2AV On Monday, July 6, 2015, John Lemay <j...@carltonhouse.eclipse.co.uk> wrote: > I can't help you with the KAT500 question, but with a 13 to 1 SWR on 6m you > would be strongly advised to improve the match at the aerial. > > John G4ZTR > > -----Original Message----- > From: Elecraft [mailto:elecraft-boun...@mailman.qth.net <javascript:;>] > On Behalf Of George > Rebong > Sent: 05 July 2015 23:15 > To: elecraft@mailman.qth.net <javascript:;> > Subject: [Elecraft] KAT500 won't tune the 6 meter antenna > > My KAT500 doesn't tune my 6 meter antenna. I tried it on AUTO mode and > MANUAL mode. The antenna has 13:1 SWR. The KAT500 relays doesn't make > noise > when I keyed the K3. Did I miss something? > 73 > George KE6TE > > Sent from my iPad > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net <javascript:;> > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to j...@carltonhouse.eclipse.co.uk <javascript:;> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net <javascript:;> > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k2av....@gmail.com <javascript:;> > -- Sent via Gmail Mobile on my iPhone ______________________________________________________________ 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
