A hard-learned lesson about a great hound that had staying power. Billie would stay in a cat's face until she had it. Especially if it was in a culvert. She would bay at it until she was hoarse and had no voice. Only after three days she did give up the battle and come out. Now on this occassion if Gary had been using Garmin - we would never have gotten her back. Three days of trying to get a signal on her; then finally with a roof-mounted non-directional antenna we heard a faint beep, beep, beep. We followed the sound as it got stronger and stronger. There she was, coming along the river. Hungry, tired and glad to see us. Telemetry brought her back to us. Tag-A-Longs mount on the same strap with Garmin GPS for only $99, small price to pay to bring a valuable warrior home.