Phil, I think I've shown you this before. This is a link to my homemade camera car with some preview video: https://ogrforum.ogaugerr.com/...35#72805549098596735
The car has since gone through some updates with a better camera made by Foxeer. I built this for under a $100 and the live image is pretty good. the key with analog video is having good quality antennas on the transmitters and receivers.