Quote:
Originally Posted by techhelpbb
The D-Links were FCC certified and confirm to the necessary transmit and receive standards. They didn't fully support QoS correctly and therefore the harder the field tried to rate shape them the harder they'd try to send. They only made it worse with some crazy boot behavior and TCP/IP oddities.
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The big issue with the DLinks was that the frequency backoff was hardcoded into the radio, and the value was the same for every radio produced. This meant that if they ever interfered with eachother, that would all start trying to separate from each other, but they would do so at the same rate, which just caused them to keep interfering. That was the root cause for the Christmas Trees. The new radios have that number legitimately randomize, which actually actively allow the radios to not interfere with each other. So even though they were FCC certified, for our uses they had issues, and our options for radios have to be specialized so those issues don't happen.
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Teams 1510 and 2898 - Student 2010-2012
Team 4488 - Mentor 2013-2016
Co-developer of
RobotDotNet, a .NET port of the WPILib.