You might be too close to the tower to be using an amplified antenna. If so, it would overload, meaning no signal. You might want to try it without the amplifier.
I get TV signals from 35-40 miles away using a $10 set of rabbit ears.
Palm Harbor and Clearwater do have dead spots - you might want to check the signal maps at RabbitEars (
http://www.rabbitears.info/contour.p...=1447176&map=Y). Zoom in to your location and see if you're in one of those dead spots. I'd refer you here to TV Fool, but they still show the old location; RabbitEars has the new.
The federal government prohibits deed restrictions that don't allow you to receive TV signals (see OTARD -
http://www.fcc.gov/guides/over-air-r...n-devices-rule), so you are able to use an outdoor antenna.