[Elecraft] [KAT500]schematic

[ab2tc]

Hello again, 

Hmm, that should produce similar results to mine. One possibly important
difference is that the VNA ports are perfectly matched 50ohm ports, but that
shouldn't make that much of a difference. Have you ever tried to connect a
dummy load to one of the ports (leaving the KAT500 in the normal shack
wiring otherwise), select it and see how much stuff leaks through from the
other two ports? I will send you an E-mail so you get my E-mail address. But
I don't doubt your interpretation of the scans.

AB2TC - Knut


Phil & Debbie Salas wrote
> "..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
> <snip>





--
View this message in context: http://elecraft.365791.n2.nabble.com/KAT500-schematic-tp7568007p7568063.html
Sent from the Elecraft mailing list archive at Nabble.com.