Development of a Decentralized Paging Transmitter Network

This paper deals with the development of a decentralized paging transmitter network called ”DAPNET” used by the amateur radio service in Germany. The aim is to implement a software, as successor of the already existing system, which will be able to build up a paging service using the current infrastructure (for example the transmitters and receivers). A main requirement is to achieve a decentralized system, which means that the software runs on geographically distributed servers. Accruing data (for example entries from the user administration, defined transmitter groups, call-signs, etc.) have to be synchronized. After analysing the current infrastructure and collecting requirements, a detailed design process has been performed. As a result the network structure and the software architecture including instructions about how to realize each component were defined. The last step is the concrete implementation of the ”DAPNET Core” as well as a first test.