Using a repeater for GPS collars would greatly increase distance. But you'd have to get the repeater set to the collar frequencies which would require licensing.

APRS (the protocol that the BeeLine GPS modules use) is designed with repeating in mind. All users would transmit on the same ...

Hello Everyone, Greg Clark, from BigRedBee here. Just a few comments regarding this discussion:

From a high level, the Garmin DC30 and BeeLine GPS use very similar technologies. The biggest difference is that the Garmin uses a proprietary packet format, and requires the use of their receivers to ...