History

GPS collars are pretty new devices in wildlife tracking. Since decades, the wildlife biologists have been tracking animals with the radiotelemetry or VHF telemetry.

The VHF collar sends a pulse signal (beep, beep, beep, beep..) and this signal is located by an antenna.

It was a revolution in the middle of 1990, when the first GPS collars were deployed on animals.

Because the technology was just starting, the first collars were quite heavy, with a weight of about 2-3 kg. So the first collars were fitted on large mammals like moose or red deer.

At that time the collars had to be retrieved in order to outread the stored fix position data.

The GPS GSM collar technology has been introduced in wildlife biology in 2002.