Long distance (>10km) broadcast video

Grass Valley Group has been manufacturing video fiber optic systems since the 1980 Winter Olympics at Lake Placid. To date all systems have been Light Emitting Diode (LED)based with a recommended maximum distance of 3 kilometers. At these distances such systems typically make sense where immunity from Electro Magnetic Interference (EMI) or Radio Frequency (R.F.) is needed. Ease of cable installation is a consideration. On a price/cost comparison however, such systems are not cost effective until approximately 1 kilometer. In addition, the further the distance the greater the cost benefit. Increased transmission distance has therefore been an ongoing requirement from our customers.