i have a few known good hf rigs. after all is hooked up i notice over
time as i've made 'hookup' changes... that i seem to dectect rf energy
leaking from somplace

it might be the case or my coax perhaps the grounds lastly it's
possible rf is just going into the ac lines

I know this as my tv in the room hasn't changed and lately is pickng up
rf on keydown (i've isolated to not being from my roof antenna)

sometimes when rig a is on i can pick up a little of it from rig b
(even w/a bandpass filter) so it's shack related

Question:

so how does one go about finding out what i did wrong how do you
trouble shoot? and isolate

can i use a instrument? trial and error?