Sirio Boomerang W Base CB & 10m Ham Antenna 900W Peak, Tunable 26.8-27.6MHz, 1/4λ Ground Plane

The Sirio Boomerang W is a compact, 1/4λ ground plane boomerang base station antenna engineered in Italy for CB 27MHz and 10-metre amateur radio use. Sharing the same proven electrical design as the Boomerang A, it offers 300W continuous power handling (900W short time CW), a tunable frequency range of 26.8–27.6 MHz, a bandwidth of ≥800 kHz at SWR ≤2, and a gain of 0 dBd (2.15 dBi) — but in a more compact 2180mm (7.15ft) package, making it ideal where space or planning restrictions limit antenna height. Designed for on-mast mounting and constructed from aluminium, copper, galvanised steel, fibreglass, and nylon for durable outdoor use.

Key Features

• 300W continuous power handling (CW)
• 900W short time power handling (CW)
• Tunable frequency range: 26.8–27.6 MHz
• Compatible with CB 27MHz & 10-metre amateur radio
• Gain: 0 dBd / 2.15 dBi
• Bandwidth: ≥800 kHz @ SWR ≤2
• Omnidirectional radiation pattern
• Linear vertical polarisation
• Compact 1/4λ ground plane boomerang design
• On-mast mounting
• SO-239 (UHF-Female) connector
• Height: 2180mm / 7.15ft — ideal for space-restricted installations
• Durable materials: aluminium, copper, galvanised steel, fibreglass & nylon
• Made in Italy by Sirio

Technical Specifications

• Type: 1/4λ ground plane boomerang base antenna
• Radiation: Omnidirectional
• Polarisation: Linear vertical
• Frequency range: 26.8–27.6 MHz (tunable)
• Systems: CB 27MHz / 10m amateur (HAM)
• Gain: 0 dBd / 2.15 dBi
• Bandwidth: ≥800 kHz @ SWR ≤2
• Max power: 900W peak (CW short time) | 300W continuous (CW)
• Connector: SO-239 (UHF-Female)
• Height: 2180mm / 7.15ft
• Mounting: On-mast
• Materials: Aluminium, copper, galvanised steel, fibreglass, nylon
• Country of origin: Italy