The Canadian JANET System

JANET is a point-to-point communication system based on the forward scattering of radio waves from meteor trails. The properties of the transmission medium are such that special methods are required to take full advantage of them. Factors influencing system design have been discussed elsewhere; it is the purpose of this paper to desdribe a data handling equipment which has been designed for use on a single channel radio teletype link operating on the JANET principle. The equipment is designed for use with double sideband AM radio links having 3-kc bandwidths. Standard 60 wpm teletype machines are used for input and output, and the instantaneous transmission rate is 1300 wpm.