Ronja Twibright Labs

2x Ronja AUI Forte BER measurement

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Measuring or estimating Bit Error Rate of 2x Ronja AUI Forte.



  • 2 computers
  • Each computer must have 1 full duplex AUI card or 2 AUI cards with Half Duplex Reduction to emulate a full duplex card.
Postscript / PDF / EPS / BIG png / SVG (Inkscape)

Connecting AUI Forte's

Connect them using shielded coaxial cables and capacitors.

IP Networking

Set up IP networking between the machines so they should be able to ping each other. If you are emulating full duplex card using half duplex reduction, read how to emulate full duplex card on IP level.


If you have Linux where C programs can be compiled on one PC, then perform the ronjaping variant.


Otherwise perform the ping variant.


BER should be under 10^-9. If it's worse, then something is wrong with the electronics.
An expected information missing here?