"..Ah, so you measured loss directly from, say, port 1 to port 2 with a VNA (vector network analyzer)...."
I should have been clearer. I connected the VNA output to Port2, the VNA input to the radio port, and I selected Port 1. So isolation measured was Port2 to common when Port1 was selected. Then I did the same measurment, but connected the VNA output to Port3, and the VNA input to the common with Port1 selected so I could see isolationf from Port3 to common with Port1 selected. Email me and I can provide those scans if you'd like. Phil - AD5X ______________________________________________________________ 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