Transmission of video

The transmission of the raw video feed from the remote location to the studio or master control is called backhaul. There are several ways of transmitting the backhaul:

Where available, production trucks can use existing high capacity fiber optic cable to send video directly via the Internet to broadcasting companies for distribution. These accept an asynchronous serial interface (ASI) digital stream from the video encoder. This is a very high quality, low loss way of sending video quickly and securely around the world.^[26]

Cellular networks

Portable, battery-powered, IP video encoders are sometimes used over cellular modems that leverage a technology called bonded cellular, to transmit video signals from a camera back to a control room or content delivery network. There have been recent tests using 5G for backhaul, with fibre optic as backup.^[27]