Description

The circuits in Figure 1 and Figure 2 transmit NTSC video signals over twisted pair wire. They weredesigned and tested for transmitting video on inexpensive CAT-3 twisted pair wire. Even when transmittingon 1000 feet of wire good quality color video was displayed on a monitor with an NTSC input. Both thetransmit and receive circuits use the LMH6643 dual op-amp that has the proper bandwidth