The 2-wire video transmission systems from Funkwerk offer outstanding performance capabilities for this most widely used transmission medium. The LE 86 system cansimultaneously transmit up to 2 channels in real time and incolor over up to 1500 m on coaxial or 2-wire lines. The LE 90 system can simultaneously transmit up to 16 channels in real time and in color over up to 1800 m on coaxial or 2-wire lines. The standard LE 100 range of 4300 m can even be extended to 12500 m using special LE 100-Z repeaters which permit a minimum of 5 cascades.
A further bonus of both systems is their ability to make efficient use of existing telephone or multi-strand cables, thus saving the costs of new installations and paving the most cost-effective way to maximum performance, exceptional picture quality and a 100 % real time display. The high bandwidth of 5 MHz and the equalizer amplifier in the receiver combine to produce perfectly focused reception. The equalizer amplifier can be configured line-specifically and can compensates for transmission losses of up to 50 dB, or 60 dB with preemphasis.
As LE 86 and LE 100 are both wire-based transmission systems, they can offer the highest possible degree of reliability, and the twisted wires ensure the highest level of interference resistance. In the unlikely event of a signal failure, the systems automatically activate an LED on the front panel of the unit as well as a floating alarm contact. The systems also offer protection from overvoltages, such as indirect lightning strikes or similar disturbances.
Needless to say, both systems are fully compatible with all 2-wire output video cameras from Funkwerk which no longer require a special type of transmitter. The LEV 86 module features two independent reception channels, which means that 2 video signals can be processed using a single module. The integrated remotely controlled video selector switch in LE 100 S makes it possible to select from up to 3 video signals for transmission.