There is no clear provision on the video cable like a USB cable.
If it is only the part of the video signal, I think that about 10 m is safe if it is an ordinary pincode (RCA terminal) as achievement.
If it is a coaxial cable (BNC terminal), it can transmit without feeling deterioration of about 100 to 200 m.
If you really want to use the RCA terminal, the terminals are sold as RCA terminal, the cable as coaxial cable, etc.
