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| A-Netz phone in a Merceds Benz | B-Netz radio tower in Bredstedt |
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| my mother's C-Netz SIM card | NMT (Nordic Mobile Telephone) |
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| AMPS (USA) / TACS (UK / Ireland / Italy) | my ealy radio setup |
A base station implementation of classic mobile networks. All these networks use analog voice transmission. The signaling is done by tones and/or FSK modulated digital messages. It started with the idea to make a base station for the German B-Netz, but more networks followed.
This project is pure software that requires a transmitter and a receiver connected to the sound card of a Linux PC. A second sound card or ISDN card is used to route calls from and to the mobile phone.
Implemented networks:
- A-Netz (Germany)
- B-Netz (Germany) ATF-1 (Netherlands)
- C-Netz (Germany)
- NMT - Nordic Mobile Telephone (Scandinavia)
- AMPS - Advanced Mobile Phone Service (USA)
- TACS - Total Access Communication System (UK/Italy)