If the wireless cameras in the truck transmit video to the cloud via a 4G/3G SIM card, then you should try the following jammer: https://www.royaljammer.com/
If the wireless cameras in the truck also have an internal mini TF card, they can still record video onto the memory card, and this recording cannot be blocked by the jammer.
Additionally, the recommended jammer can also block GPS signals.
If the wireless cameras in the truck transmit video to the cloud via a 4G/3G SIM card, then you should try the following jammer:
https://www.royaljammer.com/
If the wireless cameras in the truck also have an internal mini TF card, they can still record video onto the memory card, and this recording cannot be blocked by the jammer.
Additionally, the recommended jammer can also block GPS signals.
Thank you!