Cel-Fi ROAM41+L900 ROAM R41 Smart Repeater BOOST-L900 Antenna

Cel-Fi ROAM41+L900 ROAM R41 Smart Mobile Repeater with BOOST-L900 Antenna

The ROAM41+L900 is a complete mobile signal repeater kit combining the Cel-Fi ROAM R41 smart repeater with the BOOST-L900 90cm tuned GSM antenna. Compatible with 3G, 4G, and 5G DSS signals, it is the only smart repeater approved by Telstra, Optus, and Vodafone for use in Australia, and is backed by a 4-year warranty including a 2-year extended warranty.

Product overview

The Cel-Fi ROAM R41 is a smart mobile repeater designed to boost weak mobile signals in vehicles and mobile applications across Australian networks. As the only smart repeater approved by Telstra, Optus, and Vodafone for use in Australia, the ROAM R41 complies with carrier requirements and can be used without risk of network interference or carrier restrictions.

The BOOST-L900 antenna is a 90cm GSM antenna developed by Autobacs Japan and specifically tuned to work with the ROAM R41. Rather than attempting to cover the full 700 to 3600MHz frequency range at which performance is difficult to maintain consistently, the BOOST-L900 focuses on the frequencies most relevant to regional Australian coverage, delivering stronger signal performance in areas where mobile connectivity is most challenging.

The kit operates on 12V via a cigarette lighter power supply, making it suitable for vehicles, caravans, and other mobile setups. The included Cel-Fi internal antenna distributes the boosted signal inside the vehicle cabin. The combined system is designed to boost a single bar of signal to full signal strength, improving upload and download speeds in areas with weak coverage.

Features and benefits

Boosts 3G, 4G, and 5G DSS signals: The ROAM R41 supports 3G, 4G, and 5G DSS signal boosting, providing improved connectivity across the major network technologies used in Australia.

Carrier approved for Australian networks: The only smart repeater approved by Telstra, Optus, and Vodafone for use in Australia, ensuring full network compliance without risk of carrier interference or signal rejection.

BOOST-L900 90cm tuned GSM antenna: Developed by Autobacs Japan and specifically tuned for use with the ROAM R41, the BOOST-L900 focuses on the frequencies most critical for regional Australian coverage, providing stronger performance than a standard broadband GSM antenna across the same frequency range.

Boosts 1 bar to full signal: Designed to take a single bar of mobile signal and amplify it to full signal strength, delivering a meaningful improvement in call quality, upload speed, and download speed in areas with weak coverage.

Faster uploads and downloads: By amplifying the incoming mobile signal, the ROAM R41 improves data connection quality, resulting in faster upload and download speeds on supported networks.

12V cigarette lighter power supply: Operates from a standard 12V cigarette lighter socket, requiring no permanent wiring for a straightforward in-vehicle installation.

Includes Cel-Fi internal antenna: The kit includes a Cel-Fi internal antenna to distribute the boosted signal throughout the vehicle cabin for consistent coverage across connected devices.

4-year warranty including 2-year extension: Backed by a 4-year total warranty, comprising the standard manufacturer warranty plus a 2-year extended warranty included with this kit.

What's in the box

• Cel-Fi ROAM R41 smart mobile repeater
• BOOST-L900 90cm Cel-Fi tuned GSM antenna
• Cel-Fi internal antenna
• Cel-Fi 12V cigarette lighter power supply

Technical specs

Frequently asked questions

What is the difference between the ROAM41+L900, the ROAM41+M600, and the ROAM41+M1000?
All three kits include the Cel-Fi ROAM R41 smart repeater with a Cel-Fi tuned GSM antenna from Autobacs Japan. The ROAM41+M600 includes the 60cm BOOST-M600 antenna, the ROAM41+L900 includes the 90cm BOOST-L900 antenna, and the ROAM41+M1000 includes the 100cm BOOST-M1000 antenna. Longer antennas generally provide additional gain, making them better suited to locations with particularly weak signal. Contact us for guidance on which antenna length best suits your application.

Is the Cel-Fi ROAM R41 legal to use on Australian networks?
Yes. The Cel-Fi ROAM R41 is the only smart mobile repeater approved by Telstra, Optus, and Vodafone for use in Australia, confirming full compliance with carrier requirements and Australian telecommunications regulations.

Does the ROAM41+L900 work with 5G networks?
Yes. The Cel-Fi ROAM R41 supports 5G DSS signal boosting in addition to 3G and 4G. Note that 5G DSS uses spectrum shared with 4G networks. Contact us for further guidance on 5G DSS coverage compatibility for your specific location and carrier.

Does the kit require permanent installation in the vehicle?
No. The ROAM R41 operates from a 12V cigarette lighter power supply, allowing it to be used as a portable unit without permanent wiring. It is suited to vehicles, caravans, and other mobile setups.

What warranty does the ROAM41+L900 kit carry?
The ROAM41+L900 kit carries a 4-year total warranty, comprising the standard manufacturer warranty plus a 2-year extended warranty included with this kit. Contact us for further information on warranty terms and conditions.