There will come a point in time, probably this summer or fall, when some collars will interfere with each other due to the fact that there are too many collars in a given area.
At that point you will have to change your com setting, if your dog is within 5 feet of you or wait until the other dogs leaves your range.
Think about it!!
If there are more than 14 dogs, all with DC-30 collars, in a 5 square mile area,especially in the mountains, there will be some kind of interference with one or more of the collars.
Garmin's engineers need to add more frequencies to the Astro 220 system.
What is your opinion??
