What is your antenna like on 20 meters? Sounds more like antenna than amp.
Sent from my iPhone ...nr4c. bill > On Dec 18, 2016, at 6:08 AM, Joe Hutchens AJ8MH-Radio > <[email protected]> wrote: > > This is a question I've been wanting to ask... > > I've had a KPA500 for 4 years and I've noticed that 20 meters requires more > drive. Most bands require 30 watts or less, but 20 requires 35-37 for 500 > watts out. In the phone portion of 20, an SWR of 1.4:1 WILL cause a fault. > It's just real sensitive to the load on 20. I have to use a tuner and make > sure I'm close to 1.1:1. Works fine into a dummy load, but high drive is > still required. > > I've lived with it, because I don't operate SSB very often on any band, but > lately I've been chasing NPOTA stations and find myself using 20 SSB. > > I assembled the amp, and it's been like this from day one. Anyone else see > this on 20. Just interested. > > Joe (AJ8MH) > > > ______________________________________________________________ > 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]

