rear view/back up camera erratic

[bhb1]

My rear camera picture goes on and off while driving. When I go under a bridge it stays on. The side cameras stay on all the time. The rear camera antenna is below the roof of the trailer, could this be the problem? The rear of the trailer to the truck is 30 feet. The truck bed is 8 feet. Thank you, Bill

[ajriding]

The underside of the bridge might be acting to reflect the wifi signal back to your receiver (camera screen) in the truck. You need the extender or to mount the camera antenna so it has a more direct sight to the truck cab. Maybe even lower it so the antenna is not shooting through the roof AC unit or other obstacles with mass.

[Bigbird65]

Bill you might consider an extended antenna for your camera. Use Gorilla tape to attach the base to the top of your AC cover. https://www.amazon.com/gp/product/B07MHHKMRG/ref=ppx_yo_dt_b_asin_title_o08_s00?ie=UTF8&psc=1