Sirio FLEX-LOG 4 CB Mobile Antenna 750W Peak, Tunable 26.9-27.5MHz, 3/8" Thread

The Sirio FLEX-LOG 4 is a capable, logarithmic-loaded CB mobile antenna engineered in Italy for CB 27MHz use. With 250W continuous power handling (750W short time CW), a tunable frequency range of 26.9–27.5 MHz, and a bandwidth of ≥1 MHz at SWR ≤2, it offers a significant step up in power and bandwidth over shorter whip antennas while remaining compact and easy to mount. Standing at 1260mm tall with a universal 3/8" thread mount, it fits a wide range of standard mobile antenna mounts. Constructed from copper, chromed brass, and fibreglass for durability and a clean finish.

Key Features

• 250W continuous power handling (CW)
• 750W short time power handling (CW)
• Tunable frequency range: 26.9–27.5 MHz
• Compatible with CB 27MHz
• Bandwidth: ≥1 MHz @ SWR ≤2
• Omnidirectional radiation pattern
• Linear vertical polarisation
• Logarithmic loaded design for efficient, compact performance
• Universal 3/8" thread mount — fits most standard mobile mounts
• Height: 1260mm / 4.13ft
• Premium materials: copper, chromed brass & fibreglass
• Made in Italy by Sirio

Technical Specifications

• Type: Logarithmic loaded mobile antenna
• Radiation: Omnidirectional
• Polarisation: Linear vertical
• Frequency range: 26.9–27.5 MHz (tunable)
• Systems: CB 27MHz
• Bandwidth: ≥1 MHz @ SWR ≤2
• Max power: 750W peak (CW short time) | 250W continuous (CW)
• Connector / Mounting: 3/8" thread
• Height: 1260mm / 4.13ft
• Materials: Copper, chromed brass, fibreglass
• Country of origin: Italy