Mobile Cellular Coverage Solution

ROAM R41 delivers reliable 3G, 4G, and 5G connectivity inside vehicles and boats.

The CEL-FI ROAM R41 will keep you connected and boost signal whether you’re in a car, truck, RV, or boat. With the latest Nextivity proprietary IntelliBoost chip, ROAM R41 offers enterprise-grade performance to solve poor coverage and enable dependable calling, texting, and streaming on the move. The system features plug-and-play operation for quick and easy set up, improving connectivity in any car, truck, RV, or boat within minutes.

Perfect for nomadic applications, CEL-FI ROAM R41 is a plug-and-play cellular coverage solution that keeps people connected on the water or road. ROAM R41 is compatible with a wide range of bands to give you peace of mind that the system will boost your carrier’s signal.


  • Deploy the unit anywhere in the network, with full frequency coverage
  • Latest 4th generation Nextivity proprietary IntelliBoost chip delivers channelized coverage for specific mobile network operator signals
  • Support for 3G, 4G, and 5G dynamic spectrum sharing (DSS) in your vehicle or boat
  • Ease of installation with plug-and-play operation
  • Approved by the carriers to boost their signals
  • Select which operator signal to boost and easily change whenever you want via the WAVE App

Technical Specifications

Power Supply
Power Consumption (W) max. 18
Input Voltage (VDC max.) 12
Input Current (A max.) 1.5
Power Supply Plug Automobile Auxiliary Power
Power Supply Cable 18 AWG
Power Supply Cable Length (ft (m)) 16.3 (5)
Operating Temperature (°F (°C)) 32 to 140 (0 to 60)
Storage Temperature (°F (°C)) -31 to 158 (-35 to 70)
Heat Dissipation Passive Convection
Surface Temperature (°F (°C)) max. at ambient 111.2 (44)
Non-condensing Humidity 0 to 95%
Ingress Protection Rating IPX0
Bands Downlink (MHz) Uplink (MHz) Max. Relay BW (MHz)
1 2110-2170 1920-1980 20
3 1805-1880 1710-1785 20
5 869-894 824-849 20
7 2620-2690 2500-2570 20
8 925-960 880-915 15
20 791-821 832-862 20
26 859-894 814-849 20
28L 758-788 703-733 20

Sample Layout


CEL-FI ROAM R41 Brochure
CEL-FI ROAM R41 Data Sheet
CEL-FI ROAM R41 Quick Start Guide