Overview

DX Engineering Four-Square Array Three-Quarter Wave Tuned Cables

DX Engineering Four-Square Array Three-Quarter Wave Tuned Cables are offered for your antenna system where the recommended quarter wave cables will be too short for your installation. There are cases where the phasing controller relay unit must be mounted away from the exact physical center of the array, such as when elevated verticals or elevated vertical dipoles are used. Three-quarter wavelength tuned cables are then required.

The electrical dimensions of these cables are critical to system performance. They're made from the highest quality waterproof, direct bury 75-ohm RG-11/U gas-injected low-loss foam coaxial cable. Their length differs from a free-space dimension by the velocity factor of the specific cable type. These cables, manufactured to DX Engineering specifications, have a velocity factor of 0.84, providing the maximum physical length to allow for easy burial and routing from the feedpoint of the antenna to the controller relay unit.

DX Engineering Four-Square Array Three-Quarter Wave Tuned Cables must be ordered for your desired frequency. These custom built tuned coaxial cable assemblies ordered from DX Engineering are hand crafted and electronically tuned to a specific HF frequency. Typically, customers request that they are tuned to the center or slightly below the center of their antenna array band, depending upon their planned modes of operation.

After placing your order, please inform us of the desired frequency for your cables by e-mailing dxengineering@dxengineering.com or by calling 800-777-0703 or 330-572-3200. You may leave a message after business hours. Custom cable assembly orders will process after we receive your frequency information. Please contact DX Engineering Technical Support if additional assistance is needed. We will contact you if we have any questions about your special orders.

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