Flying today in the neighborhood toward an open field area. In the open field area I get a "Aircraft Signal Interruption" warning and it wants to RTH. This has happened twice now in the same area. Flight log shows 1950ft from home and it was about 130 ft alt. I'm a newbie so what is most likely happening here? Antennas were up, I was facing the direction of the AC. It was also a clean line of sight too.