DFed him Saturday. Using the hand-held Pro-60 scanner and bearings, confirmed the site almost 2 miles NNE of SRQ airport parking lot (US-41 entrance) where initial bearings were taken, then drove the airport parameter. Finally a weak signal on the scanner with the duck antenna removed and held out the sunroof, for less than a block. Then spotted a surprisingly short stick (15-20 feet) mounted on the right (east) side of the house, a location north of Whitfield Rd. Frequency meter with paper clip for antenna reading from the car confirmed. Total time till located: 30 minutes. I won't give his address here. Though about paying a visit, but was a bit pressed for time. If anyone personally knows him and wants to warn him of his very strong signal (this day, anyway) write me directly with Whitfield Radio in the subject line so I don't assume it's spam. This offer null and void for FCC, FDLE or country Sheriff's employees.
No trace of 103.1 this day (Saturday), unfortunately.