[Elecraft] RX Ant isolation?

[Bob Redmon]

I tried using my beverages with the K3 for the first time this evening. 
When I transmit (100w...no amp), the output on the K3 goes nuts and 
starts peaking up well above 100 w. It kept doing it until I 
disconnected the beverage and power cycled the K3. I know I am not the 
only fellow using beverages (closest point to transmit antenna is 150 
feet). I have never had this problem with other radios. How are others 
setting up for RX antennas?

73, Bob K5SM