K3s RX Ant port question

Don Jones
 
Edited

Does the rx ant port disconnect during transmit? Do I need to install a TR switch on the rx ant port to protect the K3? Running 1500w with tx & rx ant's in close proximity to each other. Don't want to smoke my K3S. 
I'm not finding a straight answer in the manual. I do have a automatic tuner installed. 
Thanks, Don KO7I

Edit,
I  do have the sub receiver installed. 

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