Topic summary
Argos system
Extracted from the Wikipedia article Argos (satellite system).
Frequencies and data transfer
Data collected from the Argos System is transmitted to the ground using two possible methods. If an Argos System ground receiving station is in view of the satellite while the transmitter is also in view, the data is transmitted and processed in near real time. If a ground station is not in view or operational, data is additionally transmitted from the satellite to one of several polar based ground stations. This introduces additional delay in receiving messages.