[Elecraft] [KAT500]schematic

[ab2tc]

Hi,

Ah, so you measured loss directly from, say, port 1 to port 2 with a VNA
(vector network analyzer). Those will be different numbers and not what I
had in mind. What I am interested in is how much an unwanted signal on one
antenna port is attenuated when another antenna port is selected. Or vice
versa, when transmitting, how much power goes out the two ports not
selected. This loss could be improved significantly if the unselected ports
could be grounded, which is why I am interested in a schematic.

AB2TC - Knut

PS. We now have about 19F and my remote KAT500 is showing no signs of
distress.


Phil & Debbie Salas wrote
> “...How did you measure that? They are very different from my
> measurements. ..”
> 
> I measured the isolation with my Array Solutions VNA2180.
> Phil – AD5X
> <snip>





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