Chapter 19
Minimizing Vertical Expenditures: Remote Relay Switching Boxes
One of the most enjoyable aspects of operating a pair of phased verticals is reversing their directivity with the flip of a switch. Surprisingly, there are several ways of accomplishing this task, beginning with this offering from DX Engineering, below.
Instead of a delay line, the system uses lumped components to produce the temporal delay in quadrature phasing. Options include DC control wire and 75 Ohm coaxial cables pre-cut for the band in use.
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