CEL-FI GO G43 100 dB Small Business 3-Carrier Cell Phone Signal Booster | G43-BBBE

CEL-FI GO G43 3-Carrier Small Business Cell Phone Signal Booster

Custom design & install by Powerful Signal
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  • Most powerful small business booster available—up to 100 dB gain
  • Amplifies 5G/4G Verizon, AT&T & T‑Mobile simultaneously
  • Roof-mounted or window-mounted outside donor antennas
  • Supports 1 to 4 inside dome or panel antennas
Outside Signal Strength
Coverage @ 700 MHz LTE
5 Bars
Up to 50,000 ft²
3 Bars
Up to 25,000 ft²
1 Bar
Up to 7,500 ft²

Free lifetime support
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Product Description

Features of the Nextivity CEL-FI GO G43 three-carrier cellular coverage solution

  • The CEL-FI GO G43 is a commercial cellular amplifier solution for small offices, “small box” retail spaces, restaurants, banks, branch offices, and large custom homes that need improved indoor cellular coverage for employees, customers, homeowners, and guests.
  • The GO G43 is the most powerful “off-air” cell phone signal amplifier in its class, providing up to 100 dB gain—hundreds of times more than competing small-office amplifiers and large-home boosters.
  • The GO G43 amplifies 6 bands of 5G/4G frequency simultaneously for Verizon, AT&T, and T-Mobile cellular networks. question mark inside a circle
  • The system’s 3 outside donor antennas—one for each carrier—can be mounted on the roof or, if your building doesn’t have roof access, in an exterior window. The GO G43’s 15 dB of echo cancellation gives the amplifier to ability to continue operating even when the outside and inside antennas are close enough to cause oscillation in other cell signal boosters. question mark inside a circle
  • An installed GO G43 system supports 1 to 8 inside ceiling-mounted dome or wall-mounted panel antennas for flexible, optimized indoor signal coverage.
  • Remote system monitoring via the Nextivity WAVE Portal provides real-time system performance data.
  • Free consultation and quote, with industry-leading installation and lifetime support from Powerful Signal, the leader in improved in-building cellular signal.

Keeping customers, staff, and systems connected through reliable cellular coverage, CEL-FI GO G43 is an “off-air” solution that brings strong cellular signal from outside the building indoors. A GO G43 system improves coverage for up to three carrier networks, enabling strong in-building connectivity for in-store digital couponing, payment systems, backup or redundancy for other networks, inventory management, and much more.

Office floor with a cell signal booster system and 4 dome antennas An office floor with amplified cellular signal from a CEL-FI GO G43 and four dome antennas. (Click to enlarge.)

How the CEL-FI GO G43 works

  1. Three rooftop- or window-mounted antennas (one for each carrier) receive outside cellular signal.
  2. The received signal is sent via coax cables to the GO G43 amplifier, which increases the signal gain and sends it downline through one or two coax cables.
  3. The amplified signal is rebroadcast by one to eight inside server antennas distributed throughout the interior of the building where improved signal is needed.
  4. The GO G43 amplifier also sends signal back to the cell towers with increased gain, improving cellular communications in both directions.
Nextivity CEL-FI GO G43 setup diagram

Coverage Areas

The CEL-FI GO G43 in-building cellular solution can provide indoor coverage for up to 50,000 square feet or more (depending on outside signal strength). This makes it an ideal solution for small and mid-sized businesses and large homes.

Buildings that would benefit from a GO G43 solution include:

  • Small to mid-sized offices & call centers
  • Gas stations, convenience stores, mini-marts
  • Full-service & fast-food restaurants
  • Banks & other businesses with branch offices
  • Gift shops, clubhouses, waiting areas & other small retail spaces
  • Small warehouses & industrial centers
  • Below-ground-level parking garages
  • Charging stations
  • Custom homes & home offices
  • Guesthouses and employee living quarters
Office floor with a cellular booster system and dome antenna An office floor with amplified cellular signal from a CEL-FI GO G43 with one dome antenna.

Best practices: a custom-designed Nextivity CEL-FI GO G43 solution

You’ll get the best results and performance from a CEL-FI GO G43 with a custom ProWay design and professional installation.

Working with your floor plans, Powerful Signal’s design engineers will create design specifications that will allow you to use the fewest number of components to get the maximum amount of cellular coverage inside your home or office.

Powerful Signal’s professional installer will have knowledge of local building codes and the proper tools and experience to make sure your system is set up and configured correctly. We also offer a managed installation in which we support your I.T. professionals with system design documents and technical support.

Call Powerful Signal at 435-634-6800 or request a free custom quote online. We’ll design a custom system that will solve your cellular reception and connectivity problems at the best possible price point. We’ve designed thousands of cell signal amplifier systems—let us create one for you!

Nextivity CEL-FI GO G43 in-building cellular coverage solution amplifier booster from Powerful Signal

Optional plenum air coax cable upgrade

The CEL-FI GO G43 system is typically installed using TS‑400 coax cable to connect the amplifier to the outside and inside antennas. If your building requires fire-rated cableexternal link icon in plenum spaces, please ask us about upgrading to half-inch plenum air coax. Plenum cable fully meets state and federal building codes.

Plenum cable also has nearly half the signal loss per foot of cable compared to TS‑400 coax cable, providing stronger signal from your GO G43 booster and a wider indoor coverage area.

(Plenum air cable is available at additional cost. Call Powerful Signal at 435-634-6800 for details.)

TS-400 coax cable and plenum air coax cable terminated with N-male connectors This system uses TS‑400 coax (left), but you can upgrade to fire-rated plenum air coax cable (right) for building-code compliance and better performance.

Amplifies three major cellular carriers

The Nextivity CEL-FI GO G43 boosts the signal from the three largest U.S. cellular networks:

  • Verizon (bands 2, 4, 5, 13)
  • AT&T (bands 2, 4, 5, 12)
  • T-Mobile (bands 2, 4, 5, 12, 25)
Carrier logos for Verizon, AT&T, T-Mobile

FCC notice

For information on federal rules governing the use of consumer cell signal boosters, please see our FCC notice page.

Prop 65 notice

Caution triangle icon Warning This product can expose you to chemicals, including nickel, which is known to the State of California to cause cancer, and Bisphenol A, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to link icon.

Product Specifications

Small business / large home
Strong outside signal (−95 dBm RSRP, 5 bars):
Up to 50,000 ft² indoor coverage
Fair outside signal (−105 dBm RSRP, 3 bars):
Up to 25,000 ft² indoor coverage
Weak outside signal (−115 dBm RSRP, 1 bar):
Up to 7,500 ft² indoor coverage
Outside Antenna:
Directional LPDA (×3)
Inside Antenna:
Omnidirectional dual-mount dome or directional flex-mount panel (×1–8)
Cable Type:
400 / half-inch plenum air
Connector Type:
50 Ω
+100 dB max
Max Output Power (Uplink):
20–22 dBm
Max Output Power (Downlink):
17 dBm
Booster Case Material:
Signal Readout:
LED lights & online portal
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Warranty Information

For warranty information on this product, please see our Nextivity warranty information page.

Questions & Answers