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Designed, built, and tested in the United States.
Used by operators who expect predictable performance.
Created by Mark Smith, amateur radio operator and co-host of the Ham Radio Workbench Podcast..

Solutions Organized by Problem Type

Most radio issues happen at the interface – between radios, antennas, audio devices, and grounding paths. Start with the problem you are trying to solve.

Common Mode Current Concerns?

Unsure whether your choke is actually reducing common mode current? Learn how to evaluate performance and measure properly.

RF in Your Audio?

Noise, feedback, or unexpected signal coupling between devices? Start with isolation, grounding, and proper interface design.

Headset Wiring Confusion?

Different radios use different pinouts and assumptions. Understand compatibility before you plug anything in.


Building a Clean Headset Interface?

Implementing a consistent interconnect system across radios and accessories? See practical solutions designed around open standards.

Antenna Performance in Limited Space?

Looking for efficient polarization and predictable performance in real-world installations?

Heard this on Ham Radio Workbench?

If a product was mentioned during an episode, you’ll find it here – along with context and relevant links.

View Podcast Products

Representative Solutions

Examples of hardware designed to address the problems outlined above. Built to be measured, not guessed at.

Common Mode Current Choke Test Rig

Designed to quantify choke performance and measure common mode current reduction under controlled conditions.
Because “it should work” isn’t data.

Audio Isolation Transformer

Break ground loops and reduce unwanted coupling between radios, amplifiers, and audio devices.
Clean signal paths don’t happen by accident.

Halibut Headset Interconnect (HHI)

A consistent headset interface built around open standards for predictable compatibility across radios.
Fewer adapters. Fewer assumptions.

EggNogs / Eggbeater Antenna

Compact circularly polarized antenna solutions for reliable satellite and constrained-space operation.
Designed for real installations, not ideal diagrams.



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