I have done searches on this but can only find wireless audio info.

I am designing a zip line camera system that will allow me to send my HVX-200 down a long zip line. We plan on using it to shoot holeshots, rocker sections and long rythm jump sections (we shoot motocross) We have everything figured out for moving the camera. We are using RC airplane parts to control the motor and pan and tilt the camera. We should be able to get it moving up to 40 MPH!

My biggest obstacle now is finding a way to transmit the video wirelessly so we can monitor what we are shooting. Does anyone know a good way to do this? quality doesn't matter, we would just need at least a 2000' distance (line-of-sight). The smaller the transmitter and receiver the better and it needs to run on DC 12V power.

I think this will be an awesome set-up, I just need to clear this obstacle.

brad,
do a search on model rocketry.. was looking at some sites which had video from model rockets and they were pointing to some very small transmitters..
may be what you are after

Good call!

I found this

Model Rocket Video Camera Australia - Aussie RocketCam (http://holden.customer.netspace.net.au/rocketcam.html)

Seems like it may work for what I need.

Thanks,