RaceCam
（重定向自Race cam）
![ATN Channel Seven Sydney engineer John Porter with race car driver Peter Williamson and the Racecam camera system Porter's team developed](/Images/godic/202502/05/Racecam1979.JP+PW3459.jpg")
![RaceCam installed in a Daytona Prototype](/Images/godic/202502/05/RaceCam_DP60_Ozz_Negri_John_Pew_2011_Road_America3459.jpg")
![ESPN helicopter at NASCAR Nationwide event](/Images/godic/202502/05/ESPNHelicopterNASCARCoverage2010Bucyrus200RoadAmerica3459.jpg")
RaceCam is a video camera system used primarily in motor racing, which uses a network of car-mounted cameras, microwave radio transmitters, and relays from helicopters to send live images from inside a race car to both pit crews and television audiences.