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Originally Posted by mjcoss
FIRST has set it up such that teams can inadvertently saturate the field network. The camera can, and on the newer cRIO must be, connected to the DLINK, and the driver station can access the camera directly, bypassing the cRIO. This allows for streaming video from the camera with no compression, and at its highest rate, i.e. 640x480 @ 30 frames a second. It only takes a couple of robots stream video this way to saturate the field. Add to it that you can send data back and froth from the driver station to the cRIO via open unregulated ports, and you have a recipe for bad field behavior.
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You might not be aware that the field access point creates six independent wireless networks, one for each team. One robot's network usage is not at the expense of the other robots' bandwidth. Too much streaming video from a robot can bog down its team's Driver Station, but it won't mess with other teams.
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In addition, 802.11n is susceptible to interference from other networks notably 802.11g, and this will reduce the overall data rates achieved.
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Doesn't the field wireless use 802.11n on 5 GHz? 802.11g is on 2.4 GHz and shouldn't interfere with that.