Sirio Twin-Log 5 CB Mobile Antenna 26.7-27.7MHz, 3000W Peak, 147.5cm, 3/8"

The Sirio Twin-Log 5 is the largest and highest-power model in Sirio's Twin-Log CB mobile antenna range. It uses Sirio's parallel-connected twin-wire logarithmic loading system to reduce RF resistance and heat loss while providing very high power handling.

The antenna is tunable across 26.7-27.7MHz and uses a heavy-duty fibreglass radiator with a standard 3/8"-24 male thread.

Features

• High-power CB mobile antenna
• Parallel twin-wire logarithmic loaded design
• Tunable from 26.7-27.7MHz
• 1000W CW continuous power handling
• 3000W CW short-time power handling
• At least 1.5MHz bandwidth at SWR ≤2
• Heavy-duty 9.2mm fibreglass rod
• Stainless-steel top tuning system
• 3/8"-24 male mounting thread
• Omnidirectional vertical radiation pattern

Technical Specifications

• Manufacturer: Sirio Antenne
• Model: Twin-Log 5
• Manufacturer Part Number: 2408315.03
• Type: Twin-wire logarithmic loaded CB mobile antenna
• Frequency Range: 26.7-27.7MHz, tunable
• Impedance: 50 ohms
• Radiation: Omnidirectional
• Polarisation: Linear vertical
• SWR at Resonance: ≤1.2
• Bandwidth: ≥1.5MHz at SWR ≤2
• Maximum Power: 1000W CW continuous / 3000W CW short time
• Height: Approx. 1475mm
• Weight: Approx. 390g
• Mounting: 3/8"-24 male thread
• Materials: Copper, chromed brass, stainless steel and fibreglass

Package Contents

• Sirio Twin-Log 5 antenna
• Installation manual

Installation

The Twin-Log 5 is designed for installation on a compatible 3/8"-24 female stud or mount. Tune the antenna after installation for the required operating frequency. Sirio lists the optional CB-HDS 3/8-24 female to SO-239 adapter for installations requiring that connection.