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Nextivity CEL-FI GO G51 5G NR/4G LTE Cell Signal Booster

Icon Coverage Up to 15,000 Sq Ft
Coverage Up to 15,000 Sq Ft
Icon 5G & 4G LTE Amplification
5G & 4G LTE Amplification
Icon AT&T FirstNet Support
AT&T FirstNet Support
Icon Stronger Voice Quality & Faster Data
Stronger Voice Quality & Faster Data
Icon High Gain Up to 100 dBm
High Gain Up to 100 dBm
Icon FCC Certified
FCC Certified
See if G51 Covers Your Building
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Strong In-Building 5G NR & 4G LTE for Small to Medium Buildings

The CEL-FI GO G51 by Nextivity delivers reliable mid-band 5G NR and 4G LTE coverage for one mobile carrier at a time, solving in-building 5G connectivity challenges. Powered by IntelliBoost Technology, it provides industry-leading performance and up to 100 dB gain, ensuring stronger voice quality and faster 5G data speeds for more efficient business operations in urban or rural environments. Dual-band relay allows simultaneous 5G NR and 4G LTE connectivity, giving your team broader network coverage.

Built for small to medium businesses, the GO G51 cell phone booster covers up to 15,000 sq ft. It’s ideal for commercial suites, small manufacturing sites, retail stores, clinics, and single or multi story offices. The system is self-configuring and automatically adapts to network conditions, providing consistent, high-quality cellular performance for cell phones, point-of-sale systems, radios, security cameras, and other cellular-enabled devices. Configured to support AT&T FirstNet, the GO G51 also delivers reliable, high-throughput connectivity for critical communication.

Remote monitoring and management through the Nextivity WAVE Portal and WAVE app provide real-time visibility into system performance. Choosing which carrier to boost is easy via the app. For a multi-carrier NR and LTE solution, multiple GO G51 amplifiers can be deployed together to cover all desired carriers.

The GO G51 operates under FCC Part 90. This means a signal rebroadcasting agreement with your carrier is required before deployment. We'll help you navigate this process and customize a GO G51 solution that best meets your coverage needs. Give us a call at 1-800-969-8189 to get started or fill out the form below.

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GO G51 Technical Specs

Frequencies

Frequency Bands n78, n41 and 1, 3, 5, 7, 8, 20, 28
Relay Channel Bandwidths Up to 100 MHz and 5, 10, 15, 20 MHz
Networks 2G/3G/4G/5G
Network Protocols GSM/WCDMA/LTE/NR
Network Selection Automatically best available (WAVE App and WAVE Portal for manual setting)
Network Operator Configurated to authorized operator PLMN-IDs
Duplex Modes FDD and TDD
# of Relay Bands 2
Relay Bandwidth 100 MHz + 20 MHz max.
Output Downlink Power (Bands 1, 3, 5, 7, 8, 20, 28) 20 dBm (16 dBm in U.K.) max.
Output Downlink Power (Band n78/n41) 27 dBm max.
Output Uplink Power (Band n78/n41) 24 dBm max.
Output Uplink Power (Bands 1/3/7) 22 dBm max.
Output Uplink Power (Bands 5/8/20/28) 20 dBm max.
System Gain 100 dB max.
Enterprise-Grade Echo Cancellation 30 dB min.
Return Loss 8 dB typ.
Impedance 50 Ω nom.

Bands

Frequency 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
28L 758-788 703-733 20
28 758-803 703-748 20
n41 2496-2690 2496-2690 100
n78 3300-3800 3300-3800 100

Compliance

3GPP 3GPP TS 25.143 Rel 13; 3GPP TS 36.143 Rel 13; 3GPP TS 38.106 Rel 17
CE Compliant RED 2014/53/EU; ErP 2009/125/EC
RoHS3 EN 63000: 2018
OFCOM VTS 2102
ACMA EN 55032:2015
R-NZ AS/NZS 4268:2017
Bluetooth LE Ver 4.2

Power Supply

Power Consumption 60 W max.
AC Cable Plug Type C (EU) or Type I (AUS) or Type G (UK)
AC Cable 18 AWG
AC Cable Length 6 ft (1.8 m)
DC Cable Length 3.3 ft (1 m)
DC Cable 16 AWG

Interface

Donor RF Connector SMA (f)
Server RF Connector SMA (f)
DC Input 5.5 x 2.1 mm (f) Barrel
LAN RJ45 Jack
Device Setup LAN for WAVE Portal; Bluetooth for WAVE App
Power and System Status Bi-color LED (Green/Red)
LAN Status Bi-color LED (Green/Red)
USB USB 2.0 Micro-B for WAVE Field Tool
System Management and SW Updates WAVE App for iOS 11.0 or later; WAVE App for Android; WAVE Portal for Desktop

Environmental

Operating Temperature 32 to 104 °F (0 to 40 °C)
Storage Temperature -31 to 158 °F (-35 to 70 °C)
Heat Dissipation Passive Convection
Surface Temperature 111.2 °F (44 °C) max. at ambient
Non-condensing Humidity 0 to 95%
Ingress Protection Rating IPX0 Indoor Only

Mechanical

Main Unit Dimensions 10.44 x 6.77 x 2.72 in (265.2 x 172.0 x 69.2 mm)
Main Unit Weight 4.8 lbs (2.2 kg)
Thermal Output 176 BTU/Hr

GO G51 Configurations

An outdoor cellular antenna captures available 4G LTE and mid-band 5G NR signals from the selected mobile carrier. The GO G51 amplifier receives those signals, boosts them, and redistributes them through one or more indoor antennas strategically placed where signal is needed the most.

Our team will help configure a unique solution with custom antennas to fit your space. The CEL-FI GO G51 is capable of covering up to 15,000 sq ft and allows for multiple configurations depending on your specific coverage needs.

This configuration uses one outdoor antenna and two indoor server antennas to improve 5G NR and 4G LTE coverage in small business spaces. Offers up to 7,500 sq ft under optimal conditions.

Single Carrier QUATRA 100M

This configuration uses one outdoor antenna and four indoor server antennas spread across multiple floors to improve 5G NR and 4G LTE coverage in mid-size business spaces. Offers up to 15,000 sq ft under optimal conditions.

Multi-Carrier QUATRA 100M

This configuration uses two or more directional outdoor donor antennas, each focused on a specific carrier. Each antenna connects directly to its own dedicated GO G51 amplifier. The GO G51 can also work alongside other compatible boosters such as the GO G41, GO G43, and others to capture additional bands. The amplified signals are then combined and split between the indoor antennas using splitters or taps. The GO G51 covers up to 15,000 square feet with multi-carrier coverage throughout.

Integrated with QUATRA Systems

Frequently Asked Questions

What Frequencies Does the GO G51 Support?

The GO G51 cell phone signal booster supports cellular frequencies n77, 2, 12, 14, 17, and 25, covering the major 4G LTE bands as well as mid-band 5G NR. It is also configured to support AT&T FirstNet for mission-critical communication.

Can the GO G51 Boost Multiple Carriers at Once?

The GO G51 is designed to amplify one carrier at a time. You can easily select your preferred carrier thought the WAVE app. For spaces requiring multi-carriers 5G NR and 4G LTE coverage, multiple GO G51 units can be deployed together. Our team can help design the right setup for your needs. Give us a call at 1-800-969-8189 for a free consultation.

What Antennas Come with the GO G51?

Antenna selection depends on your space and signal conditions. For outdoor signal capture, the system supports high-gain LPDA or Yagi antennas. For indoor signal distribution, dome or panel antennas can be used depending on your layout. Our team will help configure the right antenna setup for your specific space and coverage requirements.

How is the CEL-FI GO G51 Deliver Industry-Leading Performance?

The CEL-FI GO G51 is powered by Nextivity's IntelliBoost Technology, delivering up to 100 dB of system gain. Whether your business is in a dense urban area or a remote location, the GO G51 maximizes n77 5G C-band and 4G LTE coverage indoors. Self-configuring, it automatically adapts to network conditions to deliver the highest quality performance. Dual-band relay allows simultaneous 5G NR and 4G LTE connectivity, keeping your team connected on both networks at the same time.

How Much Coverage Can I Really Expect from the GO G51?

The GO G51 covers up to 15,000 square feet under optimal conditions with multiple indoor antennas. Actual coverage depends on available outdoor signal strength, building layout, and the number of indoor antennas used. Our team will help configure the best setup to maximize coverage for your environment.

What Does FCC Part 90 Mean?

An FCC Part 90 cell phone signal booster operates at a higher power level than standard units. They sometimes also support additional frequency bands, like c-band 5G for example. Because of their higher power and broader capabilities, rebroadcasting agreements are required from your selected carrier. For more information, see our blog on FCC Part 90 Explained.

Is the GO G51 Professionally Installed or Can I Install it Myself?

Because the GO G51 is a Part 90 system, it requires professional installation by a qualified installer. Our team will assist with antenna selection, obtaining rebroadcasting agreements, and setup to ensure optimal performance for your space.