AXIS AKU7 - 7dB UHF Antenna with Stainless Steel Spring and Elevated Feed

AXIS AKU7 - 7dB UHF Antenna with Stainless Steel Spring and Elevated Feed

Professional-grade 7dB UHF CB antenna featuring elevated feed design for superior performance, heavy-duty 46mm stainless steel barrel spring providing exceptional impact protection and flexibility during off-road driving, detachable 8mm black fibreglass mast for easy replacement and maintenance, 4.5-metre commercial-grade LMR240 ultra low loss coaxial cable minimizing signal loss for maximum transmission efficiency, factory pretuned to 477MHz UHF CB frequency eliminating field tuning requirements, FME female cable termination with included FME/PL259 adaptor for universal radio compatibility, complete ready-to-install package ideal for 4WD touring, commercial vehicles, fleet communications, mining operations, construction sites, and professional mobile UHF radio installations requiring maximum range and durability.

Product Overview

The AXIS AKU7 is a professional-grade 7dB UHF CB antenna engineered to deliver exceptional performance and reliability for demanding mobile communication applications. The elevated feed design provides superior signal efficiency and reduced ground plane interference compared to standard base-loaded antennas, maximizing transmission and reception range for remote area communications. The heavy-duty 46mm stainless steel barrel spring protects the antenna from impacts with branches, obstacles, and rough terrain by absorbing shocks and allowing the antenna to flex without breaking, essential for serious off-road driving and harsh working environments. The 8mm black fibreglass mast is detachable for easy replacement if damaged, reducing long-term ownership costs. The included 4.5-metre commercial-grade LMR240 ultra low loss coaxial cable ensures minimal signal loss between antenna and radio, preserving transmission power for maximum range. Factory pretuning to 477MHz eliminates complex field tuning procedures, while the FME female termination with included FME/PL259 adaptor ensures compatibility with virtually all UHF radios.

Important Notes:

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

Spring Requires Proper Mounting: Heavy-duty spring must be mounted to suitable bracket ensuring secure attachment and proper spring function.

Cable Length Consideration: 4.5m cable length suitable for most vehicles. Excess cable should be coiled neatly, not cut or shortened.

Ground Plane Required: Optimal performance requires proper vehicle ground plane. Mounting location affects performance significantly.

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

Key Features

High 7dB Gain - Extended communication range for remote touring, convoy coordination, and long-distance UHF contact.

Elevated Feed Design - Superior performance and efficiency compared to standard base-loaded antennas.

Heavy-Duty Stainless Steel Spring - 46mm barrel spring provides exceptional impact protection and flexibility.

Detachable Fibreglass Mast - 8mm black fibreglass mast can be easily replaced if damaged reducing maintenance costs.

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

LMR240 Ultra Low Loss Cable - Commercial-grade 4.5m coaxial cable minimizes signal loss for maximum efficiency.

FME Female Termination - Includes FME/PL259 adaptor for universal radio compatibility.

954mm Length - Optimal height providing excellent range while remaining practical for most applications.

Stainless Steel Construction - Corrosion-resistant spring ensures long service life in harsh environments.

Complete Installation Kit - Includes antenna, spring, cable, and adaptor for ready-to-install convenience.

Weather Resistant - Durable construction withstands extreme UV exposure, moisture, and physical impacts.

Professional Grade Quality - AXIS engineering ensures reliable performance for commercial and serious recreational use.

Ideal for 4WD Touring - Spring protection and high gain perfect for remote area travel and outback expeditions.

Commercial Fleet Applications - Reliable performance for delivery vehicles, mining operations, and construction fleets.

Easy Mast Replacement - Detachable mast design allows quick field replacement without replacing entire antenna system.

Technical Specifications

Frequently Asked Questions

Q: What's the advantage of the stainless steel spring, and do I really need it?

A: The 46mm stainless steel barrel spring provides crucial impact protection for your antenna during off-road driving, bush bashing, or urban obstacles. When the antenna strikes branches, carpark beams, or other obstacles, the spring absorbs the impact and allows the antenna to flex without breaking the mast or damaging the mounting bracket. Without a spring, impacts transfer directly to the antenna base potentially breaking the mast or loosening the mount. The spring is especially important for 4WD touring, heavy bush driving, or commercial vehicles operating in challenging environments. For urban-only driving with minimal obstacles, springs are less critical but still provide insurance against accidental impacts.

Q: What does "elevated feed" mean, and how is it better than standard antennas?

A: Elevated feed design means the antenna's feeding point (where the coaxial cable connects) is positioned higher up the antenna rather than at the base. This configuration reduces ground plane dependency, improves radiation pattern efficiency, and provides better signal performance compared to traditional base-loaded antennas. Elevated feed antennas typically deliver stronger signals, better receive sensitivity, and more consistent performance across varying mounting locations and vehicle types. You'll experience improved communication range and clarity compared to standard base-loaded designs, making elevated feed antennas preferred for professional and serious recreational applications.

Q: Can I replace just the fibreglass mast if it gets damaged, or do I need to buy a whole new antenna?

A: Yes, the 8mm black fibreglass mast is detachable and can be replaced independently without purchasing the entire antenna system. This design significantly reduces long-term ownership costs since the mast is the most vulnerable component to damage from branches or impacts. If your mast breaks or becomes damaged, simply purchase a replacement mast and screw it into the existing spring assembly. Contact us for replacement mast availability and pricing. This modular design is a major advantage for users who frequently drive in challenging environments where mast damage is more likely.

Q: Why is LMR240 cable better than standard RG58 coaxial cable?

A: LMR240 is commercial-grade ultra low loss coaxial cable offering significantly better performance than standard RG58. LMR240 has lower signal loss per metre meaning more of your radio's transmission power reaches the antenna and more received signals reach your radio, resulting in extended communication range and improved clarity. The superior shielding also provides better rejection of electrical interference from vehicle systems. While RG58 is adequate for short cable runs, the 4.5m length in this kit benefits substantially from LMR240's lower loss characteristics. For professional applications and users wanting maximum performance, LMR240 is the superior choice.

Q: What does the FME/PL259 adaptor do, and which radios is this antenna compatible with?

A: The antenna cable terminates in FME female connector, while most UHF CB radios use PL259 (SO239) antenna sockets. The included FME/PL259 adaptor converts the antenna's FME connection to standard PL259, ensuring compatibility with virtually all UHF CB radios including GME, Uniden, Oricom, and other brands. Simply screw the adaptor onto the antenna cable, then connect to your radio's antenna socket. The FME termination on the cable end provides a secure weatherproof connection at the antenna base, while the adaptor handles the radio connection. This system is compatible with essentially all standard UHF CB mobile radios on the Australian market.