Ws. Seegar et al., 15 YEARS OF SATELLITE TRACKING DEVELOPMENT AND APPLICATION TO WILDLIFE RESEARCH AND CONSERVATION, Johns Hopkins APL technical digest, 17(4), 1996, pp. 401-411
A small satellite-based tracking system that is light enough to be car
ried on birds was developed in the 1980s at the Applied Physics Labora
tory. A new, more capable generation is now under development that wil
l contain, in addition to the Argos tracking platform transmitter term
inal, a global positioning system receiver and a complement of advance
d sensors. The sensors may include a digital audio capture system and
a black-and-white charge-coupled device camera. The history of the pro
gram and plans for future development are discussed.