AXIS AKU4-L-MAST - 7dB UHF Long Mast for AKU4RDTWIN Antenna Kit

AXIS AKU4-L-MAST - 7dB UHF Long Mast for AKU4RDTWIN Antenna Kit

Genuine AXIS 7dB radome UHF long mast designed specifically for AKU4RDTWIN antenna kit featuring 1000mm extended length for improved signal reception and transmission height, constructed from durable 23mm tapered black fibreglass ensuring weather resistance and longevity, factory pretuned to 477MHz UHF CB frequency eliminating field tuning requirements for immediate installation and optimal performance, high 7dB gain enhances signal strength for extended communication range, tapered fibreglass construction provides flexibility during vehicle movement while maintaining strength and durability, black finish for professional appearance, ideal for 4WD touring, commercial vehicles, fleet communications, remote area operations, and professional UHF radio installations requiring maximum range and performance.

Product Overview

The AXIS AKU4-L-MAST is a high-performance 7dB radome UHF long mast engineered specifically as a replacement or upgrade option for the AKU4RDTWIN antenna kit, providing extended 1000mm length for improved signal reception and transmission capabilities. The 23mm tapered black fibreglass construction delivers exceptional durability and weather resistance for harsh Australian conditions including extreme heat, UV exposure, vibration, and physical impacts encountered during off-road driving, commercial operations, and remote area travel. Factory pretuning to 477MHz UHF CB frequency ensures optimal performance immediately upon installation without requiring SWR meters, antenna tuners, or technical expertise for field adjustments. The high 7dB gain significantly enhances signal strength compared to lower gain antennas, extending communication range for convoy coordination, emergency communications, and remote area operations where reliable long-distance UHF contact is essential for safety and operational efficiency.

Important Notes:

Compatibility Limited: AKU4-L-MAST designed specifically for AKU4RDTWIN antenna kit. Not guaranteed compatible with other systems.

Antenna Kit NOT Included: Mast only. AKU4RDTWIN antenna kit with mounting hardware and cables sold separately.

Professional Installation Recommended: Professional fitting ensures proper mounting, grounding, and optimal performance.

Height Clearance Consideration: 1000mm length requires attention to garage clearances, carparks, and overhead obstacles.

SWR Check After Installation: Final SWR verification recommended after installation for optimal performance.

Key Features

High 7dB Gain - Extended communication range for remote touring and convoy coordination.

Factory Pretuned - Tuned to 477MHz UHF CB frequency eliminating field tuning requirements.

1000mm Extended Length - Elevates antenna higher improving signal propagation and range.

23mm Tapered Fibreglass - Durable weather-resistant construction with flexibility preventing breakage.

Black Finish - Professional appearance complementing vehicle aesthetics.

Weather Resistant - Withstands extreme UV exposure, heat, moisture, and physical impacts.

477MHz UHF CB Optimized - Specifically tuned for Australian UHF CB frequency allocation.

Compatible with AKU4RDTWIN - Direct replacement mast for AKU4RDTWIN antenna systems.

Flexible During Movement - Bends during impacts with branches returning to vertical without breaking.

Corrosion Resistant - Fibreglass material does not corrode ensuring long service life.

Minimal Maintenance - Requires only occasional cleaning and visual inspection.

Professional Grade Quality - AXIS engineering ensures reliable performance and durability.

Ideal for 4WD Touring - Extended range perfect for remote area travel and convoy communications.

Commercial Fleet Applications - Suitable for delivery vehicles, mining operations, and professional use.

Technical Specifications

Frequently Asked Questions

Q: Will this mast work with any UHF antenna, or is it only for the AKU4RDTWIN kit?

A: The AKU4-L-MAST is specifically designed for the AXIS AKU4RDTWIN antenna kit only. The mast's threading, electrical characteristics, and mechanical design are optimized for this system. Using it with other antenna brands may result in poor performance, incorrect SWR readings, or physical fitment issues. If you're using a different antenna model, contact us to verify compatibility before purchasing. If you already own an AKU4RDTWIN kit, this is the correct replacement or upgrade mast.

Q: The mast is factory pretuned, but do I still need to check SWR after installation?

A: While the mast comes factory pretuned to 477MHz, we recommend a final SWR check after installation using an antenna analyser or SWR meter. Factory pretuning provides excellent baseline performance, but mounting location, vehicle size, and ground plane configuration can slightly affect final readings. Most installations achieve excellent SWR (under 1.3:1) without adjustment. If SWR is above 1.5:1, minor repositioning may optimize performance.

Q: What's the advantage of the 1000mm long mast compared to shorter antennas?

A: The 1000mm length provides increased communication range by elevating the antenna higher above your vehicle, improving signal propagation and extending range by several kilometers. Higher mounting reduces interference from vehicle body and accessories, improving transmission and reception clarity. The 7dB high gain delivers stronger signal strength essential for remote touring and convoy coordination. However, longer antennas require attention to clearance heights (garages, carparks) and may catch low branches during off-road driving.

Q: How durable is the fibreglass construction, and will it break if I hit branches?

A: The 23mm tapered fibreglass is engineered for durability and flexibility. It bends when impacted by branches or obstacles, then returns to vertical position without breaking like rigid metal antennas. The tapered design (thicker at base, thinner at tip) provides strength where needed while maintaining flexibility. While highly durable, repeated severe impacts can eventually cause stress fractures. The fibreglass resists corrosion, UV degradation, and weather exposure far better than metal antennas, ensuring long service life in coastal and outback environments.

Q: Is professional installation required, or can I install this myself?

A: If you're simply replacing an existing mast on your AKU4RDTWIN system, installation is straightforward - unscrew the old mast, install the new one, and verify SWR. However, for complete new antenna installations, professional installation by a qualified auto electrician is strongly recommended to ensure proper mounting location, waterproof sealing, correct cable routing, proper grounding, and final SWR verification. DIY installation is possible for experienced users with proper tools (SWR meter, drill, sealants), but professional installation typically costs $150-300 and ensures warranty compliance and optimal performance.