Maco Asteroid

The Maco Asteroid is a high-performance, dual-polarity directional beam antenna designed for the 10 and 11-meter bands (CB and amateur radio). It is known for its large size and significant power multiplication, making it a top-tier choice for long-distance (DX) communication.
Key Technical Specifications
As of early 2026, the Maco Asteroid typically features the following specifications:
Elements: 10 total (5 vertical and 5 horizontal).
Boom Length: 26 feet.
Reflector: Multiscreen reflector designed for high front-to-back separation.
Gain: 15.5 dB.
Power Multiplication: 40X.
Front-to-Back Separation: 40 dB.
Power Handling: Comes stock with two 2kW gamma matches, which can be upgraded to 5kW, 10kW, or 30kW.
Weight: 41–45 lbs.
Wind Survival: 90 mph (144 km/h).
Functionality & Features
Dual Polarity: Allows users to switch between vertical and horizontal polarization for maximum signal flexibility and range.
Adjustable Gamma Matches: Both vertical and horizontal gamma matches are fully adjustable to achieve the lowest possible SWR (Standing Wave Ratio), typically 1.5 or less.
Construction: Built from aircraft-alloy 6063-T6 seamless aluminum tubing with no holes drilled in elements to prevent fatigue failure.