Sounds like it was fine until you changed props.
Once it lost signal it should have returned home.
I have the comfort and reassurance of having a TK109B on mine.
It never leaves home without it. About $30 a year for cellular service.
Fantastic little device that is accurate as anything.
It even sends my phone a text automatically anytime the battery is low.
Beats em ALL imo. (As long as there's cellular service that is).
Once it lost signal it should have returned home.
I have the comfort and reassurance of having a TK109B on mine.
It never leaves home without it. About $30 a year for cellular service.
Fantastic little device that is accurate as anything.
It even sends my phone a text automatically anytime the battery is low.
Beats em ALL imo. (As long as there's cellular service that is).