The receiver I obtained is the 16 channel module that is used to track Alzheimer patients and is comparable in price to the ten channel model. The collar is very lightweight and even my smallest dog, Casey, who weighs 18.5 lbs., has no trouble handling the weight. The range of the 3850 is claimed to be three miles.
Garmin TT15 Additional GPS Dog Tracking / Training Collar
Garmin Astro 320 and T 5 Dog Tracking System Collar and Control Bundle sold separately and can be found through item search for item number 2138229
Shop Dog Tracking Collars & Systems for Hunting Dogs
There are also two ways how a dog GPS tracker may function: GSM-based (cellular) GPS trackers and Radio-based trackers. Both of these options are very popular, but they're normally used for different reasons. Cellular GPS trackers for dogs are often used with subscription-based technology, and radio GPS trackers for dogs are most common for independent GPS collars for dogs that function on their own.
Tracking Collars - Gun Dog Supply
Most folks only need one, but if you like to be able to track all your friends dogs, you may want to look at the Maxima 5000/25. It will track all collars on the 216 - 220 bands, no matter the manufacturer or brand of the collar. All you have to know is the band and frequency and you can start tracking.With the TEK 2.0 Series, SportDOG Brand® introduces the most accurate and reliable GPS Tracking/E-Collar Training collar to hit the sporting dog market. Train and track up to 21 dogs from up to 10 miles away.With the TEK Series, SportDOG Brand® introduces the first combination GPS Tracking/E-Collar Training collar to hit the sporting dog market. Train and track up to 12 dogs from up to 7 miles away.One problem with a radio tracking collar is that it never tells you exact distance, so you have to do some guess work and test your system. Tracking collars give very limited information on distance. With a tracking collar it's more about direction than distance. You can estimate the distance based on the amount of gain (signal strength) that is required to get the signal from the tracking collar, but this can change based on the terrain that is between you and the dog.