Design of a 6802-controlled propagation field strength analyser for land mobile radio services

In recent years, the rapid increase in the land mobile frequency spectrum usage in New Zealand has imposed increasingly stringent performance requirements on the general land mobile radio operation and its management. One of the more pressing problems confronting the Land Mobile Service Organizations and the Spectrum Regulatory Authorities is that of establishing an usable propagation model for evaluating various propagation related problems. This article describes the design of a prototype propagation field strength measuring apparatus which analyses propagation parameters automatically in real time. It thus presents an economic option to other more expensive methods used.