Sirio Yagi 4 (SY-4) CB & 10m Ham Beam Antenna | 1000W Continuous, 11dBd Gain, Tunable 26.5-30MHz

The Sirio Yagi 4 (SY-4) is a professional-grade, 4-element Yagi beam antenna engineered in Italy for CB 27MHz and 10-metre amateur radio use. Delivering an outstanding 11 dBd (13.15 dBi) gain — 2.5 dBd more than the 3-element SY-3 — with 1000W continuous power handling (3000W short time CW), a tunable frequency range of 26.5–30 MHz, and a bandwidth of ≥850 kHz at SWR ≤2, it's the ultimate choice for serious DX operators who demand maximum directional performance and long-range signal reach. Designed for on-mast mounting, it measures 5846 x 4030 mm and is constructed from aluminium, galvanised steel, and zamak for robust, long-lasting outdoor use.

Key Features

• 1000W continuous power handling (CW)
• 3000W short time power handling (CW)
• Gain: 11 dBd / 13.15 dBi — superior DX performance
• Tunable frequency range: 26.5–30 MHz
• Compatible with CB 27MHz & 10-metre amateur radio
• Bandwidth: ≥850 kHz @ SWR ≤2
• 4-element Yagi directional design
• Linear horizontal polarisation
• On-mast mounting
• SO-239 (UHF-Female) connector
• Dimensions: 5846 x 4030 x 100 mm / 19.18 x 13.22 x 0.33 ft
• Durable materials: aluminium, galvanised steel & zamak
• Made in Italy by Sirio

Technical Specifications

• Type: 4-element Yagi beam antenna
• Radiation: Directional
• Polarisation: Linear horizontal
• Frequency range: 26.5–30 MHz (tunable)
• Systems: CB 27MHz / 10m amateur (HAM)
• Gain: 11 dBd / 13.15 dBi
• Bandwidth: ≥850 kHz @ SWR ≤2
• Max power: 3000W peak (CW short time) | 1000W continuous (CW)
• Connector: SO-239 (UHF-Female)
• Dimensions: 5846 x 4030 x 100 mm
• Mounting: On-mast
• Materials: Aluminium, galvanised steel, zamak
• Country of origin: Italy