Ionosphere

Ionosphere is part of a planets upper atmosphere that is ionized by radiation from space and consists of a plasma. Ionospheres are characteristic of high electron density and hence high electrical conductivity. The ionosphere affects the radio waves.

Gamma Site has an atmosphere that has a unique radioactive ionosphere as making it difficult to lock on to targets on the surface of the orbit. The ionosphere made ​​it difficult for Odyssey to lock themselves to the SG-1 and IOAs delegations signs of life on the surface after that there were a large number of R-75.