The Principles and Development of Radio Pager

Radio pager as the result of combination of advanced computer, communication and micro-electronics, has been used widely. The principle of radio pager and code format of radio pager and the difference between digital radio pager (DRP) and character radio pager (CRP) are introduced in this paper. Design method of micro-software about pager is presented as well. We improve the structure of radio pager, make the property/price higher. Our DRP and CRP are as good as any other same products now sold in the market.