I have a neighbor who has one of those invisible dog fences and it was creating an s9 noise level across 80 meters and up to 60 meters.
I was off air for a while and recently came back to S9 static type interference on 75. Its horrible. I have a jerk neighbor who own a kennel and has had his dogs yack at other dogs coming near. He used to go out and fire off a gun, but recently he is away. I checked this noise with a wrist am radio and its right within an acre or two and very persistent. night and day. What does the dog fence sound like. What I have sounds much like insulator power line, but our power lines are under ground. So, I have not proven its from him, but he would never cooperate with me even if it was so.. what does it sound like? Send me an MP3?