The Sirio Starduster M-400 is a classic, high-power 1/4λ ground plane base station antenna engineered in Italy for CB 27MHz and 10-metre amateur radio use. With 1000W continuous power handling (3000W short time CW), a tunable frequency range of 26.5–30 MHz, and a generous bandwidth of ≥2 MHz at SWR ≤2, it delivers reliable omnidirectional performance across the full CB and 10m band. Standing at 5040mm (16.54ft) tall and designed for on-mast mounting, it's constructed from aluminium, chromed brass, and nylon — a proven combination that has made the Starduster a long-standing favourite among CB and HAM operators worldwide. Key Features 1000W continuous power handling (CW) 3000W short time power handling (CW) Tunable frequency range: 26.5–30 MHz Compatible with CB 27MHz & 10-metre amateur radio Gain: 0 dBd / 2.15 dBi Bandwidth: ≥2 MHz @ SWR ≤2 Omnidirectional radiation pattern Linear vertical polarisation 1/4λ ground plane design On-mast mounting SO-239 (UHF-Female) connector Height: 5040mm / 16.54ft Quality materials: aluminium, chromed brass & nylon Made in Italy by Sirio Technical Specifications Type: 1/4λ ground plane base antenna Radiation: Omnidirectional Polarisation: Linear vertical Frequency range: 26.5–30 MHz (tunable) Systems: CB 27MHz / 10m amateur (HAM) Gain: 0 dBd / 2.15 dBi Bandwidth: ≥2 MHz @ SWR ≤2 Max power: 3000W peak (CW short time) | 1000W continuous (CW) Connector: SO-239 (UHF-Female) Height: 5040mm / 16.54ft Mounting: On-mast Materials: Aluminium, chromed brass, nylon Country of origin: Italy
