Comtek Current Baluns Now Available from DX Engineering: Big Performance at a Small Price

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Comtek W2FMI Series Baluns from DX Engineering are value-engineered for maximum antenna efficiency. They provide a superb, efficient match between unbalanced coax and balanced antennas.

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DX Engineering Comtek Current Balun

Eliminate pattern distortion, unpredictable performance, RFI and noise pickup.

Inspired by designs from antenna expert Jerry Sevick W2MFI and updated by DX Engineering’s balun R&D department, the Comtek current baluns force equal current to flow through your antenna. This prevents high values of common mode feedline current --eliminating pattern distortion, unpredictable performance, RFI and noise pickup from nearby sources like TV sets and computers.

Typical insertion loss is less than 0.2 dB, with power handling ranging from 3 kW continuous to 5 kW+ intermittent from 1.8 to 54 MHz, with reduced power ratings at 54 MHz.

Comtek baluns are sealed in a weatherproof NEMA box that measures 4" X 4" X 2". Durable stainless steel 1/4” studs, star washers (for lasting electrical connections), and large fender washers (to distribute fastener loading to prevent the case from deforming) are included. SO-239 connectors are silver plated with Teflon® insulation.

The baluns are available in 1:1 and 4:1 versions, with several different configurations: side studs, top studs, side eyebolts, plus side and top eyebolts. An optional DX Engineering bracket (part number DXE-BMB-4P) lets you mount the balun on a boom or pipe.

Price: $49.95 to $69.95. For more information or to order, visit


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Mark Haverstock
DX Engineering
330.630.5575 4676
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