This is an old revision of the document!
The UKHASnet Network Structure is similar to the APRS system used by Amateur Radio. In that there is no collision detection, no retransmission, and no Error Correction.
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Important Notes:
* All packets are unreliable, like UDP on Computer Networks. A collision with another transmitted packet, or a burst of interference at the wrong time may cause your packet to be lost in the network as if it never existed.
* A gateway or any connection to the UKHASnet Database is not required for a local network. The ukhas.net database and associated API is just intended to be a community-supported service for archiving and visualisation of sensor data. If you would prefer to write your own separate application/system to do this, you are encouraged!
* This is not primarily intended for balloon-tracking, that may be a future use, but we have no idea whether it would work, or how well! For now it's a local sensor network.
