Mid-points
Although less used nowadays in the age of SNG, we should just mention the option of mid-points, as these are used by stations who still use terrestrial microwave for long-haul links and have not yet been able to afford to enter the expensive world of SNG.
Microwave links over very long distances can be achieved by using a succession of point-to-point links – a chain of microwave repeaters termed ‘mid-points’ – that receive and then retransmit the signal on to the next point in the chain.
The mid-point is typically either a truck fitted with both a receiver and a transmitter with suitable antennas parked on a hill, a receiver/transmitter ...
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