Opensource Iridium modem
If over the horizon satellite communications are a requirement you are in luck! An Outback Challenge team from Holland just helped you out.
For participation to the https://uavchallenge.org/
As there is huge interest from the UAV community in using light weight and reliable satellite communication the http://mavlab.tudelft.nl/ made the iridium development open-source so the UAV community can benefit from this achievement.
https://youtu.be/qVogmRistcw
For the opensource hardware and software see:
