Whoa - I'm definitely going to check out that software! Jerry - unfortunately I don't have room for a bog, and my vertical loops are useless against neighboring noise sources that travel along wires and have no point-source anymore. Thus the log and dog are my last hopes. I think this is the "niche" that some of us are in. Otherwise, sure - I'd use a directional antenna. Update: more open wire testing inspired by W6NBC - but taken even further: Previously the transition from outside to inside the shack was via a Comet "through the window" slim little coaxial jumper. I mean really thin. Yeah, it works. I replaced that with nothing more than say 24-gauge zip line - the type that you see with some wall warts, and ran that in and around my 12x6 foot aluminum window frame's u-channel and close it gently. Success - no new noises or increase in noise. There seems to be no coupling to the window frame. Of course both ends of the zip-line from rig to antenna are choked. Passes my drill-test! 1) Get a battery powered drill from the garage. No bit needed. 2) Put on headphones. 3) Fire up the drill-motor and wave it around the operating position looking for hot-spots of noise. Other than what is picked up directly by the antenna, I love to walk my lines with helpers with the drill-motor running looking for hot spots. Stoked - running tiny zip-cord through the u-channel of my aluminum framed window would seem to be an obvious no-no. Well, what do you know? One has to try it to believe it.