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[liberationtech] Efficient digital one-way communication

The Doctor drwho at
Mon Mar 4 13:40:05 PST 2013

Hash: SHA1

On 03/03/2013 09:25 AM, Jens Christian Hillerup wrote:

> I basically just wanted to throw it out here. Does anybody have 
> experience in modulating data? Has this kind of digital one-way 
> communication been done in an activist setting before? Does it
> make sense to kick off a project aimed at creating a easily usable
> system capable of modulating and demodulating data at modest
> bitrates (>15KB/s)?

Project Byzantium did some research on it a few years back.  We tried
AX.25 over FRS, GMRS, and modulated laser light.  Legality aside (we
took steps to mitigate interference, but it still should be mentioned)
they're not useful for datacomm (especially in emergencies).  Amateur
radio, while having a higher barrier to entry, seems to present a more
feasible set of implementations.

- -- 
The Doctor [412/724/301/703] [ZS]
Developer, Project Byzantium:

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