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
