If you have ever disassembled an alpha delta, you can see what it takes for an attempt at isolation.
Chuck Jack KE9UW Sent from my iPhone, cjack > On Jul 7, 2018, at 2:13 PM, ANDY DURBIN <[email protected]> wrote: > > I've been using Alpha Delta model Delta-4 switches for manual antenna > selection. I thought that having the ability to auto select the appropriate > antenna with my KAT500 would be a significant improvement for my station. I > don't have a K3 so I created a band decoder that drives the KAT500 band > inputs and now have automatic antenna switching. However, I'm unimpressed by > the isolation between antenna ports. > > With the KAT500 switched to the dummy load I'm still decoding a local FT8 > station on 6 m. The difference in the FT8 signal between dummy load and > antenna is about 19 dB. I have not found a specification for KAT500 port > isolation. Is what I'm seeing typical? > > Thanks and 73, > Andy k3wyc > > > ______________________________________________________________ > 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]
