eQSO
eQSO is a client-server - program , that of radio amateurs has been developed. It allows radio stations to each other, with radio - Gateways - and relay stations via Internet to communicate by voice. A Voice-over-IP protocol is used for this. This principle is also called radio over IP . The name eQSO is derived from the Q key "QSO", which radio amateurs and CB radio operators use as an abbreviation for "radio conversation", and the prefix "e", which stands for "electronic".
eQSO is also used in free radio (CB radio, PMR 446, SRD and Freenet ). The PC users log on to the server via client software , while the other radio services use so-called gateways. The gateway establishes a connection between the server and the radio partner by dividing the voice radio into digital packets and transmitting them to the connected computer. The gateway computer then transmits the transmitted packets over the Internet to the server, which converts the data packets back into voice. It is thus possible that CB radio operators, PMR, LPD and Freenet users can talk to PC users over thousands of kilometers.
A PMR radio variant has been specially programmed for these license-free radio applications and has already been updated several times. As an alternative, the program Free Radio Network (FRN) derived from eQSO was developed. Both programs are now used quite frequently and are used equally by server operators (server software), PC users (client software), gateway operators (gateway software) and HF users (everyone who connects their radio to the gateway) popular.