One-Way Model, cheaper, suitable for CCTV Security Camera.
One-way wireless video transmitter and receiver, support send video and data from the transmitter to the receiver, but not send the data or commande from the receiver to the transmitter.
This wireless transmission type is liking a TV or Radio, you can get the video or radio broadcast from the transmitting tower to your devices. but you can not send the command or message to communicate with the tv or radio company directly.
The transmitter is transmitter, and the receiver is only a receiver.
These models are suitable for CCTV security camera, you can “see” or “listen”the real-time the video or audio.
Two-Way Model, Popular, suitable for Drone UAV, Robotic, to see and to control.
Two-Way wireless video transmitter and receiver, every unit plays a role transmitter and receiver, it is transceiver.
It can get the video and data from the transmitter to the receiver, the person also can send the control command from the receiver to the transmitter or the camera, like PTZ camera.
These wireless video transmission system like a mobile video call, not only you can “see and listen” the video and audio from the transmitter to the receiver, but also you can “reply” and real-time communicate with the receiver.
These two-ways video transmission system support UAV drone, which support to get the real-time video and data, you also can send the control command to the drone at ultra lower latency.