With CDX-TREME, RFI has focused a particular emphasis on bands critical to marginal coverage areas, including key low-frequency bands increasingly used by telecommunications operators, to ensure robust and reliable connectivity across urban, regional and remote locations. 
 
Superior Antenna Performance:
Higher gain across all bands, suitable for outback and remote applications. RFI's patented PCB-based collinear design offering the ultimate in pattern and gain stability. True multi-band coverage - Ideal for regional networks.  
 
Larger Spring Base:
Supplied with larger rugged spring assembly for the toughest Aussie regional and commercial conditions.    
 
Great Looking, Extremely Rugged:
Both the antenna whip and the spring base are designed for high vibration, low maintenance applications with whip protection locking mechanism (grub screw).     
 
Safe and Secure:
Q-Fit® removable whip system for ease of removal in low-height environments, such as multi-story car parks, car washes, or for security.    
 
Key Features:
1.2m full length
Type-N connector
Bottom fix with large nut and star washer
Black antenna whip and spring with subtle blue band at the bottom - offering a nod or appreciation to RFI's Australian engineering team for designing the world's best mobile antenna. 
 
Purpose-built for 4x4s, SUVs and UTEs, the new CDX-TREME Ruggedised Cellular Antenna features a significantly larger, heavy-duty spring built to withstand the toughest terrains and offering a true rugged aesthetic. Its reinforced ferrule architecture ensures unmatched durability and stability, even under extreme off-road conditions. This antenna doesn’t just perform — it makes a statement.     

At the heart of the CDX-TREME is RFI’s patented Meander™ PCB technology, designed and manufactured here in Australia and proven to provide superior performance in the most remote locations. Housed within an enlarged radome that’s meticulously engineered to deliver exceptional RF performance, mechanical resilience and long-range connectivity across the full spectrum of 4G and 5G — from 5G LTE (3400–3800 MHz) to 4G LTE (698–960 MHz, 1710–2170 MHz, 2300–2700 MHz). 

Developed by RFI’s world-class antenna engineering team, the CDX-TREME antenna sets a new benchmark in rugged cellular connectivity — combining cutting-edge innovation with uncompromising reliability. Built tough, performs stronger and looks the part — this is Australian engineering at its finest, ready to tackle the outback and beyond.