What kind of camera (video) do professional photographers in radio stations use? What's the difference with ordinary cameras? Do you have any information about this?

The principle of brother TV upstairs is still very clear, but it doesn't answer the landlord's question.

Professional TV interviews use broadcast-level cameras. They are divided into ENG and EFP modes.

ENG is a TV news program. It uses a single camera and a single video camera. The camera used is a portable camera. Usually, Sony BETACAM SX, MPEG IMX, etc. are used in the standard definition field of broadcast level. Panasonic has DVCPRO 50 and so on.

The relay car is an ESP system, which is made for electronic scenes. Usually, programs are produced directly by multiple cameras through switching stations.

The biggest difference between broadcast level and amateur level is the difference of image quality, which is distinguished by CCD (single CCD and three CCD), compression ratio and code stream.

At present, the mainstream recording medium is still magnetic tape. After the video tape is shot by the camera, it is edited by the camera and video recorder, or the camera is directly input into the computer for editing. This is the difference between linear editing and nonlinear editing.

At present, most signals are transmitted through video cables and audio cables. Both the player and the video recorder have standard video interfaces. The video interface is a standard Q9 interface, not a civil plum blossom interface. The audio interface is a Canon interface.

Supplementary answer:

Your so-called sports broadcast usually uses the EFP system of the broadcast car. It directly outputs the video signals of multiple cameras through the switch, and the sound is also generated directly from the sound input equipment, that is, the sound source (such as microphone and playback equipment) to the mixer for mixing output. If it is a live broadcast, the relay car has an integrated cable to transmit video signals and audio signals to the satellite car, and then the satellite car encodes them and sends them to the satellite. If it is not a live broadcast, the ob van will have an integrated cable.