I wonder if these are the Jamaician pirates from Stone Mountain. They have a long history in Atlanta. They have been on several frequencies and have been shut down by the FCC more than once. They had a very elaborate setup, high power, high tower. I remember they had over 10 DJs, phone in shows, etc. Also very complete website with phone numbers, etc.
These guys have been at it for years. Back in 2004 I found (and helped shut down) one that was tearing up Kiss 104 in Smyrna. All started when I was driving down South Cobb near Windy Hill road and heard terrible co-channel on 104.1. These guys were at 103.7 and had the WORST over-deviated audio. At the time, I was driving a 2002 Corolla which had one of the retractable whip antennas on the door pillar. So it was easy to roll the window down and put that sucker inside the car body. Drove about 1 block north and it got so strong OFF FREQUENCY I started looking for antennas.
Sure enough, on top of an old 3 story office building at 2426 Old Concord Rd, I spotted a newly placed VHF ground plane on a 30 foot mast. I also saw a phone number on the side of the building "for rent". Ended up being the owner. I told him I was a public safety radio technician and amateur radio operator who had tracked down interference. He knew there was a new tenant who had a radio station. I advised him per publicly available FCC records, no such license existed. He replied "I'll be down there in 15 minutes".
When he arrived, he was on his Nextel phone with the tenant. He handed me the phone. The pirate himself was on the line! He claimed to be in Philadelphia PA at the time "setting up another station". I inquired if his ATL station was licensed and he said he "was getting a license" (yeah right). He said his name was "Loco" and he sets up these stations around the country. I told him this one sounded like a cat stuck in a clothes dryer and was causing interference, and he asked ME to "turn it off until he could get back and get all sorted out". I handed the phone back to the building owner, who then led me inside to the third floor.
What I found in a suite was a make shift studio with crude automation and a home made single board transmitter (wasn't even in an enclosure) with an unbranded (probably Chinese import) amplifier brick. RG-58 cable went up into the ceiling. The automation consisted of two Sony Mini-Disc players daisy chained together with a Gemini four channel mixer and a couple of RS microphones on a stand. All of this was plugged into a single power strip. I physically unplugged the power and left.
Three days later it was back on the air. I remember sending en email to Cox engineering describing my discovery and encounter. Two weeks or so later, the signal was gone and off the air, and the ground plane was off the building. So, maybe someone from Cox remembers this guy and dropped the hammer. Good for them if they did. His off air signal was atrocious and splatter up and down the band. Didn't have a portable spec-an at the time (Signal Hound hadn't been invented yet) but I'm willing to bet that thing was creating a "blades of grass" effect all over VHF. Being that close to Dobbins/Lockheed, this guy could have made them mad too.