• Unmatched Gain: Stacking two (M104C, M105c, M106C, M107C) provides an additional 3 dB of gain over a single antenna. When combined, this setup delivers a total gain that rivals much larger, more expensive commercial arrays.

• Extreme Front-to-Back Ratio: Dramatically improves the antenna’s ability to reject signals from the rear and sides, ensuring that your receiver is quiet and your outgoing signal is concentrated exactly where you point it.

• Heavy-Duty Construction: Built with the same high-quality, aircraft-grade 6063-T6 aluminum as Maco’s primary antennas to withstand harsh weather and high wind loads.

• Low Radiation Angle: Lowering the angle of radiation allows your signal to “skip” further across the ionosphere, making it ideal for consistent long-distance DXing.

Technical Specifications:

• Frequency Range: 10 / 11 Meters (26–30 MHz)

• Cross-Boom Length: 14 feet

• Boom Diameter: 1.5 inches (O.D.)

• Weight: 15 lbs (6.8 kg)

• Wind Survival: 90 mph

• Stacking Increase: +3 dB gain improvement

Setup & Installation:

• Compatibility: Designed specifically for use with two (M104C, M105c, M106C, M107C) antennas.

• Phasing: Includes a precision-cut coaxial phasing harness to ensure both antennas are perfectly in phase, preventing signal cancellation and maximizing output.

• Mounting Requirement: Given the 14-foot cross-boom, a medium-to-heavy-duty rotor and a stable tower or mast are recommended.

Package Includes:

• (1) 14-foot Aluminum Stacking Cross-Boom

• (1) Phased Coaxial Stacking Harness

• Heavy-duty U-bolts, clamps, and mounting hardware

• Detailed assembly and phasing instructions