Intermittent connection on field only

[efoote868]

Originally Posted by mjcoss

I originally believed that each robot was going to be assigned a separate channel and that they were using 802.11n @ 5 Ghz. The network at the MAR championship was indeed using 802.11n @ 5Ghz, and they are using a wide channel, however all robots were sharing the same channel and as such were sharing a total theoretically bandwidth of 300 Mbits.

I don't know of any wireless product that comes close to it's theoretical rating.

This year, I was running throughput testing for a demo board. At 10-30 feet in a quiet environment (as shown on a spectrum analyzer), we were achieving about 120 Mb/s out of a theoretical 300 Mb/s using IXChariot software.

If all robots are sharing one channel, that is pretty unnerving, especially given the throughput requirements for a single video feed.