Space station hackrf one
“It is hard to get a transmitter or receiver that are suitable for emulating a specific mobile network,” Eversberg explains. That didn’t prove the easiest approach, however. In its original incarnation Osmocom-Analog was entirely software-based, using a sound card connected via analogue audio cables to external transmitter and receiver devices. Now I have dozens of old car phones and handheld phones.” Some information I found in old documentations, books, and archives, and some were lost so I had to reverse-engineer them.
![space station hackrf one space station hackrf one](http://cdn.iflscience.com/images/ad5dccfd-a1ca-5348-9bcd-eebfe203af08/content-1474450395-tiangong.jpg)
The most challenging part was to research documentation for cellular networks.
![space station hackrf one space station hackrf one](https://i.ebayimg.com/images/g/C04AAOSwTOZfTGbY/s-l1600.jpg)
Space station hackrf one code#
Most of my source code can be re-used for different networks, so development became faster and easier. “It was so much fun, so I started to implement other networks. From that point I began to develop the Osmocom-Analog software. When I picked up the car phone it started transmitting. I started writing a hack to send a broadcast signal using a sound card and a radio transmitter. I found a page on the Internet – – that describes how the signalling worked on this network. Finally, I decided to see if it is possible. For ten years, or even more, I thought about making a base station for it. “When I started the project, I had one old B-Netz car phone in my attic.
![space station hackrf one space station hackrf one](https://i.ytimg.com/vi/oEHfPPo1ZlU/maxresdefault.jpg)
That experimentation led to the creation of Osmocom-Analog, which implements a range of now long out of service analogue cellular networks as part of the wider Osmocom open-source mobile communications project. “Making long distance calls was very expensive in Germany, so I became interested in hacking the two existing car phone networks: B-Netz, C-Netz, and later the Danish NMT.” That interest continues to this day, though with a motivation that’s no longer financial: “Nostalgia,” Eversberg admits of the reason behind his continued experimentation in the field, “and mostly because these networks were analogue.” “I became interested in radio communication back in the beginning of the 90s,” recalls engineer Andreas Eversberg.