Quote Originally Posted by Megapode View Post
Can we assume you have checked the location of your iPad? The transmitter may be fine but your tablet could be off giving you wacky results.
For instance, instead of the Marshall app, open the regular map app and hit the blue arrow in the corner. If the blue dot snapped to your current location right away you should be ok. If not it could be the iPad gps?
The problem was that the TX and tablet/phone were closer together than the accuracy of GPS .