RONJA
From Biocrawler, the free encyclopedia.
Ronja (Reasonable Optical Near Joint Access) is an Free Technology (like Free Software) project of optical point-to-point data link (Free Space Optics). The design is released under the GNU General Public License (you get all the necessary documentation and construction guides free). The construction costs are minimal; it's probably the cheapest wireless system ever. Current range is 1.4km and current communication speed 10 Mbit/s full duplex.
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Ronja Models
- Ronja 10M Metropolis Provides 10 Mbit/s full duplex on a full duplex AUI interface. The distance is 1.4 km with 130 mm lenses and 700 m with 90 mm lenses. The transmitter is a 625 nm 70 mA LED diode and the optics is made from loupes. Material for one Ronja 10M Metropolis device costs 2000CZK (about 85 USD) and building the device takes 70 hours.
- Ronja Tetrapolis Like metropolis but instead on AUI connects on TP (UTP, RJ-45 etc.) network card or switch.
- Ronja Inferno Like Tetrapolis, but infrared (invisible).
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External links
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