Mobile webcast?

Hi, I’m currently trying to figure out how to set-up a mobile webcast. What I’m having a hard time with is how to transmit the video from a video camera wirelessly? I know they make 2.4ghz av transmitters, but the way I want to do it is with 802.11n. G doesn’t have the range I need, 2.4ghz RF av transmitter will have too much interference.
So my main question is, do they make 802.11n av transmitters that I can transmit the signal to another pc? I’ve looked, but to no avail.

I’ve got everything else figured out except this.

In case your wondering about how I’m going to get mobile power, I’m going to put a 12v batt and inverter in a backpack, so that’s not a problem.

P.S.- This isn’t for a FIRST event, but another event that does not really have a webcast… Nasa does a good enough job at the FIRST events IMO.

I know I didn’t include many details, so if you have to ask me questions to answer my question, no problem.