[Lowfer] HELP !!! my beacon is killing my receive !!

[Andy - KU4XR]

Hey everyone: 

I am having fun with my LOWfer beacon, but having one
particular problem; It's killing my receiver when it keys 
now, and every little improvement in output overloads it 
that much more. So monitoring for activity on 2200 meters
is gone, and 600 meters is extremely difficult. I'm guessing 
that a loop antenna for receive would be the best solution
in place of my huge HF antenna, but what about an isolation
transformer in the coax ?? Maybe a tight bandpass filter ??
I would appreciate any advice on the matter, because I want 
to listen this winter too. 73:

Andy - KU4XR - EM75xr - Friendsville, TN.
  LOWfer Beacon " XR " @ 184.322 KHz