Do you have actual antenna measurements with an analyzer? It would be helpful to know what the KTA500 is seeing.
Mike va3mw On Tue, Sep 1, 2020 at 1:31 PM Daniel Carille via Elecraft < elecraft@mailman.qth.net> wrote: > Be sure the K3 tuner is off when using the KPA1500’s tuner. > Dan - NB2P > > > Sent from Yahoo Mail for iPhone > > > On Tuesday, September 1, 2020, 12:51 PM, w5...@comcast.net wrote: > > This morning I put up a W7FG true ladder line 160M doublet. Upon testing, > the K3 internal atu does great, matches at 1.3:1. But when I throw the > KAP1500 in line, it gets all pissed off, throws up and faults out. Says > SWR > is 99:1 !!! > > The Antenna: The Apex is at 50'. It is in a inverted Vee config, with > both > ends approx 20' off the ground. I'm using 59' of the 600 ohm true ladder > line to a Balun Designs 5KW 4:1 Balun. This is fed with 22' of Wilson > LMR400 > > Both the K3 internal atu, AND the KPA1500 internal atu get a great match > on > 80M, 1.2:1 with no issues. > > Honestly, most of the work on 160M is FT8 running 20 watts or less, so > just > using the K3 to get a successful match on 160M is fine > > I just wonder why the KAP1500 doesn't like the same antenna the K3 likes. > > Any ideas here fellers? > > thanks and 73 > > 73 and GL OM DE w5sum > > ______________________________________________________________ > 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 dcari...@yahoo.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 va...@portcredit.net ______________________________________________________________ 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
