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, [email protected] 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:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
