[Elecraft] K2 as a reciever only

[Forrest Myers]

Hello Listees,
 I am tying to figure out how to use the K2 as a receiver in conjunction with another rig as a transmitter. Is there any way to mute the K2 from an external signal. Would controlling the T/R switch from outside rig do it? If so, where would be a good place to tie in to the K2 to accomplish that?
 What I'm tying to do is run RTTY using a 150 watt transmitter in FSK mode while using the K2 to receive.

Thanks,
Forrest Myers
AG4ND