A kit of semi professional equipment similar as used in the motor racing industry to relay video and audio (2 channel) off car from the circuit.  Come as an incomplete kit requiring transmit and receive antennae and depending on intended set up, additional cables.  A mains powered 12V supply is provided for the multichannel receiver with transmitter being supplied by host vehicle power (24V).  Transmittr channel is determined by internal selection.
The equipment is aimed at rhe professional or knowledgable hobbyist.  Care must be exercised with RF frequency output, particularly when external antennae, with gain, are employed.  Although licence free, frequency clearance will be required used in the proximity of airports and other installations.
(Clarified - Operates in S Band - data sheets attached by request)