PTT-100 70 gram Argos/GPS Solar Powered PTT

In 2001, the researchers of the United States Geological Survey were the first to deploy our 70g Solar Argos/GPS PTTs on a vulnerable subspecies of Greater White-fronted Goose known as the Tule Goose (Anser albifrons gambeli). This first generation of GPS transmitters was the culmination of three years of developmental work. Back in 2001, it was a major achievement to effectively combine a low power Argos transmitter with the capability of a small GPS receiver, thus allowing accurate locations (typically within ± 18m) to be obtained.

The use of solar rechargeable batteries also extended the life of the PTT, thus allowing researchers to track several migrations over a longer period, possibly up to three years. We also included a salient feature of all of our solar PTTs; they are all microprocessor controlled and contain a battery, thus making data collection and transmission possible at night (as opposed to less sophisticated PTTs where transmissions occur only during daytime when the solar cells are exposed to light.)

We have also developed a battery assisted version that has a twofold purpose: first, to collect and transmit data when light levels are such that the PTT cannot recharge adequately (e.g., in the winter months at high latitudes); secondly, to extend the life of our Ground Track (GT™) option to allow researchers more time to locate a downed PTT. Configured as a backpack this PTT is suitable for tracking birds in the 1.5 kg and heavier range. Since its introduction in 2001, this PTT has been successfully used for tracking many large species of birds including vultures, eagles and geese.


*Joint Tariff Agreement

Specifications           Price

Photo by Robert Lin

Solar Argos/GPS PTT

17 gram PTT-100

22 gram PTT-100

30 gram PTT-100

45 gram PTT-100

50 gram Patagial PTT-100