Kramer Electronics 718 - Manual (Page 6)

717/718 - Overview 3
3 Overview
The 717 and 718 are a twisted pair (TP) transmitter and receiver for composite
video and unbalanced stereo audio signals. The 717 transmitter converts
composite video and stereo audio into a twisted pair signal and the 718 receiver
converts the twisted pair signal back to composite video and stereo audio.
The 717/718 feature:
•
A system range of up to 500m (1640ft) for the 718-05, 1000m (3280ft) for
the 718-10 and 1500m (4920ft) for the 718-15
•
Automatic audio and video equalization (EQ) control (718)
The 717 and 718 are part of the Kramer TOOLS™ family of compact high-quality
and cost effective solutions which are fed from an external 12V DC source, making
them suitable for field operation.
3.1 Shielded Twisted Pair/Unshielded Twisted Pair
We recommend that you use Shielded Twisted Pair (STP) cable, and stress that
the compliance to electromagnetic interference was tested using STP cable. There
are different levels of STP cable available, and we advise you to use the best
quality STP cable that you can afford. Our non-skew-free cable, Kramer BC-STP
is intended for analog signals where skewing is not an issue.
In cases where there is skewing, our Unshielded Twisted Pair (UTP) skew-free
cable, Kramer BC-XTP, may be advantageous, and UTP cable might also be
preferable for long range applications. In any event when using UTP cable, it is
advisable to ensure that the cable is installed far away from electric cables, motors
and so on, which are prone to create electrical interference.
Note: There is no requirement for and we do not recommend the use of skew-free
cable.