Momobeam Duo5 30/40T SF Dual Band HF Yagi Antennas are a high-performance dual-band Yagi designed for the 40-meter (7 MHz) and 30-meter (10.1 MHz) bands. On 30 meters, it features three full-size elements in a Reflector/Driver/Director configuration. On 40 meters, it uses two elements with a Reflector/Driver setup and a compact design that incorporates end-loading—a solution originally developed by W6NL. This approach preserves the performance of a full-size antenna while reducing overall dimensions.

Both bands are fully usable with an SWR below 1.5:1 across more than 200 kHz, eliminating the need to choose a specific portion of the band during installation—a common limitation of coil-loaded antennas. Assembly is simple and intuitive thanks to the square boom design, labeled aluminum tubes, and hardware supplied in separate, marked bags.

Requirements:

• Two coaxial cables

• Medium/heavy-duty rotator

• RF Choke: (2) 3kW included

Additional Features and Specifications:

• Longest Element: (1820cm) 59.70ft.

• Power Handling: 10kW

• Wind Area: (0.9m² ) 9.68 sq. ft.

• Wind Load (130 km/h): (730N) 538.42 ft. lbs.

• Wind Survival: (130km/h) 80mph

• Tower Leg/Mast Diameter: (50/60mm) 2.0 - 2.36in.

• RF Choke: (2) 3kW included

• Weight (excluding packaging): (70kg) 155lbs.

• Tubes and Plates: Aluminum Alloy 6061-T6

• Hardware: Stainless Steel

• Insulating Clamps: Polypropylene (UV resistant)