[Elecraft] KXV3 ant RX protection [K3]

[Luca NCJ]

Hi all,
need to be cleared on one issue.

Scenario:

Ant 1 (or 2) connected to TX antenna
KXV3 ant RX IN connected to an RX system (i.e. a beverage)

is there any setting to avoid RF from TX antenna returning into the RX IN
module while transmitting?
For example a menu that allows to disconnect the RX antenna when the PTT is
pressed for TX-ing?

TNX in advance

-- 
Luca IK2NCJ