[Elecraft] Ant2 dumb question

[w5sum at comcast.net]

I'm trying to finish up my 5BDXCC all I lack, of course, is 80M. I'm sitting 
at 50 confirmed as of this morning.  I have a 80M fullwave loop
up that is a great rx antenna but its height is only 40' so it really 
doesn't have the low angle of radiation I need to really reach out and touch
those far contacts.
So, I've started building a Inverted L with a folded counterpoise for 80M

My thoughts are, that I will use the L for transmitting and the loop for rx. 
However, I'm worried about induced RF getting back into my K3 ( which
I received about 2 weeks before the K3S came out GRRRRRRRRRR).  I burned up 
a HRO60 Rx like that once.

Does anyone know if Ant 2 is automatically disconnected or grounded when Ant 
1 is in transmit mode?

Thanks in advance

Ronnie W5SUM