[Elecraft] (Too much..) RF back and through the RX ANT OUT for external receiver

[Graziano Roccon (IW2NOY)]

Hello,

i ordered a Colibrì Nano USB SDR.
and i am thinkg to connect the Colibrì antenna through the RX ANT OT of 
the K3s tu use the colibrì and his software like a panadapter for the 
K3s.
The colibrì can't accept "IF OUT", so i will use RX ANT OUT from XV3B to 
give antenna signal to the Colibrì.

But it seems, from some test i did with friends, that RX OUT is NOT well 
or totally disconnected weh K3s goes in TX and some RF goes (or come 
back) through the RX OUT.
I would like to know if someone knows how many "dbm" or watt could goes 
through the RX OUT when the K3s is in TX with maximum power.
Too much RF can kill the the SDR receiver.

Anyone knows the answer ?

Maybe Wayne or Eric ? ;-)

Any help would be appreciated.

Thanks a lot, Graziano IW2NOY