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  • CEL-FI GO G41 FN 100 dB FirstNet AT&T Cell Phone Signal Booster | Top Signal Series
    • CEL-FI GO G41 FN 100 dB FirstNet Cell Phone Signal Booster G41-CE-003

    CEL-FI GO G41 FN 100 dB FirstNet AT&T Cell Phone Signal Booster | Top Signal Series

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    • Public safety signal booster for first responders
    • Amplifies FirstNet band 14 & AT&T bands 12, 5, 4 & 2/25
    • High-gain booster—up to 100 dB amplification
    • 2 outdoor antennas + your choice of 1 to 4 inside dome or panel antennas
    Outside Signal Strength
    Coverage @ 700 MHz LTE
    5 Bars
    Up to 20,000 ft²
    3 Bars
    Up to 10,000 ft²
    1 Bar
    Up to 3,000 ft²

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    Free lifetime support
    SKU: G41-CE-003 
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    Product Description

    Cell phone signal booster installation tips banner
    Cell phone signal booster installation tips mobile banner

    Features of the Nextivity CEL-FI GO G41 FN in-building cellular coverage solution

    FirstNet logo
    • Amplifies cellular signal for AT&T’s FirstNet and consumer cellular networks. question mark inside a circle
    • Provides FirstNet band 14 cellular coverage in buildings for emergency communications used by police agencies, fire departments, and other first responders.
    • The most powerful carrier-grade cell phone signal booster in its class, providing up to 100 dB gain—hundreds of times more than competing home and small office boosters.
    • Your choice of 1 to 4 ceiling-mounted dome antennas or flexible-mounting panel antennas. question mark inside a circle
    • 15 dB of echo cancellation—three times as much as the GO G41’s predecessor, the GO G32—allows the booster 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
    • Boosts voice, text, and data for multiple users simultaneously.
    • Configure and monitor your booster with the CEL-FI WAVE app for smartphones.

    Police officers, firefighters, emergency medical services, and other public safety personnel count on the FirstNet cellular network to stay connected during emergencies. Nextivity’s CEL-FI GO G41 FN cell phone signal booster improves connectivity for FirstNet band 14 to help first responders effectively communicate on scene. The GO G41 FN provides maximum gain for both FirstNet and AT&T’s consumer cellular networks.

    This custom GO G41 FN kit, available only from Powerful Signal, includes both directional and omnidirectional outdoor antennas; you can use whichever antenna provides the booster with the best donor signal. It also includes your choice of up to four inside ceiling-mounted dome antennas or flex-mount panel antennas; choose the antenna type and configuration that best meets your needs.

    The CEL-FI GO G41 FN helps you stay connected and experience fewer dropped calls, undelivered texts, and missed email messages during emergencies and all other times. Boost your signal strength in areas with weak cell service and in buildings with poor inside cell signal.

    Who is the Nextivity CEL-FI GO G41 FN cell signal booster for?

    • Police departments, sheriffs, and other law enforcement agency headquarters and command centers.
    • Fire and emergency medical services stations.
    • Commercial and government buildings with legacy public safety communications systems that need to transition to the FirstNet communications network.
    • Homes of police and fire chiefs and other first responders who need improved FirstNet reception.
    • Buildings in remote locations with weak cell service (new communities, rural areas, etc.)
    • Buildings made with materials that block outside cell signal (metal, plaster, concrete, UV-coated windows, etc.).

    One to four inside antennas for maximum flexibility

    Powerful Signal’s CEL-FI GO G41 FN system can be configured with one to four inside antennas to match your home’s configuration and meet your improved signal needs.

    You’ll need access to an attic or crawlspace above the ceiling to pull cable and mount the dome antennas.

    The panel antennas can be mounted on walls or ceilings. They also stand upright on flat surfaces.

    CEL-FI GO G41 FN cell phone signal booster system multi-antenna setups diagram Sample multi-antenna indoor setups.

    Get more features with the Nextivity WAVE app

    The Nextivity WAVE app for smartphones lets you check your CEL-FI GO G41 FN booster’s status and change its settings:

    • Home: An overview of the state of your CEL-FI GO G41 FN booster system, including the outdoor signal quality and strength and quality and indoor antenna separation.
    • Activity: Get detailed technical information on the bands of frequency being amplified and the state of the booster.
    • Advanced: Enable and disable specific bands and channels of frequency, update your booster’s software, tune your outside directional antenna, and more.
    The Nextivity WAVE app for iPhone and Android smartphones for use with the CEL-FI GO G41 Stationary and Mobile Signal Boosters
    Download on the App Store Get it on Google Play

    Optional plenum air coax cable upgrade

    The CEL-FI GO G41 FN system includes TS‑400 coax cable that connects the amplifier to the inside broadcast antenna. 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 RED 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.

    Best practices: A custom-designed CEL-FI GO G41 FN solution

    In a police or fire station, office, or other large building, you’ll get the best results and performance from a CEL-FI GO G41 FN with a custom 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 FirstNet and consumer AT&T cellular coverage indoors.

    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.

    Call Powerful Signal at 435-634-6800 or request a free custom quote online. We’ll design a custom system that will solve your FirstNet 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!

    Office floor with a cellular booster system and dome antenna An office floor with amplified cellular signal from a CEL-FI GO G41 FN FirstNet booster and one dome antenna.

    Nextivity CEL-FI GO G41 FN signal booster kit contents

    We strongly advise a designed solution (see Best Practices, above). If you prefer to purchase the GO G41 FN as a standalone product, without design and installation, the kit comes with the following components.

    All kits include:

    CEL-FI GO G41 FN G41-CE-003 booster icon CEL-FI GO G41 FN cell signal booster G41-CE-003
    CEL-FI GO G41 FN AC power supply SK03T1-1200250U icon AC/DC 12V ⎓ 2.5A power supply SK03T1-1200250U
    Top Signal omnidirectional building antenna TS210471 icon Wideband outdoor omni antenna
    Top Signal 5G/4G Outdoor Pole-Mount Directional LPDA Antenna with N-Female Connector (50 Ohm) TS220971 icon Wideband outdoor LPDA antenna
    Top Signal TS451017 N-Female to N-Female Connector icon Top Signal N‑female to N‑female barrel connector TS451017
    Top Signal adjustable rooftop antenna mount TS430001 icon Adjustable rooftop antenna mount TS430001
    Top Signal 50-ohm lightning surge protector TS450001 icon Top Signal 50‑ohm lightning surge protector TS450001
    Powerful Signal CEL-FI GO G41 installation guide TS002004 icon CEL-FI GO G41 installation guide

    The one-antenna kit includes:

    Top Signal EDGE Dual-Mount Dome Antenna N-Female TS250620 icon Choice of…
    Top Signal EDGE indoor dome antenna TS250620
    Top Signal EDGE Flex-Mount Panel Antenna N-Female TS260820 icon …or
    Top Signal EDGE indoor panel antenna TS260820
    Top Signal TS-400 coax 50 ft. N-Male Connectors TS340050 icon 50′ Top Signal TS‑400 coax with N‑male connectors TS340050
    Top Signal TS-400 coax 30 ft. N-Male Connectors TS340030 icon 30′ Top Signal TS‑400 coax with N‑male connectors TS340030 (×2)
    Top Signal TS386002 RG58U coax 2 ft. N-Female/SMA-Male Connectors icon 2′ Top Signal RG58U coax with N‑female & SMA‑male connectors TS386002 (×2)

    The two-antenna kit includes:

    Top Signal EDGE Dual-Mount Dome Antenna N-Female TS250620 icon Choice of…
    Top Signal EDGE indoor dome antenna TS250620 (×2)
    Top Signal EDGE Flex-Mount Panel Antenna N-Female TS260820 icon …or
    Top Signal EDGE indoor panel antenna TS260820 (×2)
    Top Signal TS-400 coax 75 ft. N-Male Connectors TS340075 icon 75′ Top Signal TS‑400 coax with N‑male connectors TS340075
    Top Signal TS-400 coax 50 ft. N-Male Connectors TS340050 icon 50′ Top Signal TS‑400 coax with N‑male connectors TS340050
    Top Signal TS-400 coax 30 ft. N-Male Connectors TS340030 icon 30′ Top Signal TS‑400 coax with N‑male connectors TS340030 (×2)
    Top Signal TS412101 2-Way Splitter 50 Ohm N-Female icon Top Signal 2‑way 50‑ohm splitter TS412101
    Top Signal TS-195 coax 2 ft. N-Male/SMA-Male Connectors TS333002 icon 2′ TS-195 coax w/N‑male & SMA‑male connectors TS333002
    Top Signal TS386002 RG58U coax 2 ft. N-Female/SMA-Male Connectors icon 2′ Top Signal RG58U coax with N‑female & SMA‑male connectors TS386002

    The three-antenna kit includes:

    Top Signal EDGE Dual-Mount Dome Antenna N-Female TS250620 icon Choice of…
    Top Signal EDGE indoor dome antenna TS250620 (×3)
    Top Signal EDGE Flex-Mount Panel Antenna N-Female TS260820 icon …or
    Top Signal EDGE indoor panel antenna TS260820 (×3)
    Top Signal TS-400 coax 75 ft. N-Male Connectors TS340075 icon 75′ Top Signal TS‑400 coax with N‑male connectors TS340075
    Top Signal TS-400 coax 50 ft. N-Male Connectors TS340050 icon 50′ Top Signal TS‑400 coax with N‑male connectors TS340050 (×3)
    Top Signal TS-400 coax 30 ft. N-Male Connectors TS340030 icon 30′ Top Signal TS‑400 coax with N‑male connectors TS340030
    Top Signal TS413101 3-Way Splitter 50 Ohm N-Female icon Top Signal 3-way 50-ohm splitter TS413101
    Top Signal TS-195 coax 2 ft. N-Male/SMA-Male Connectors TS333002 icon 2′ TS-195 coax w/N‑male & SMA‑male connectors TS333002
    Top Signal TS386002 RG58U coax 2 ft. N-Female/SMA-Male Connectors icon 2′ Top Signal RG58U coax with N‑female & SMA‑male connectors TS386002

    The four-antenna kit includes:

    Top Signal EDGE Dual-Mount Dome Antenna N-Female TS250620 icon Choice of…
    Top Signal EDGE indoor dome antenna TS250620 (×4)
    Top Signal EDGE Flex-Mount Panel Antenna N-Female TS260820 icon …or
    Top Signal EDGE indoor panel antenna TS260820 (×4)
    Top Signal TS-400 coax 75 ft. N-Male Connectors TS340075 icon 75′ Top Signal TS‑400 coax with N‑male connectors TS340075
    Top Signal TS-400 coax 50 ft. N-Male Connectors TS340050 icon 50′ Top Signal TS‑400 coax with N‑male connectors TS340050 (×4)
    Top Signal TS-400 coax 30 ft. N-Male Connectors TS340030 icon 30′ Top Signal TS‑400 coax with N‑male connectors TS340030
    Top Signal TS414101 4-Way Splitter 50 Ohm N-Female icon Top Signal 4-way 50-ohm splitter TS414101
    Top Signal TS-195 coax 2 ft. N-Male/SMA-Male Connectors TS333002 icon 2′ TS-195 coax w/N‑male & SMA‑male connectors TS333002
    Top Signal TS386002 RG58U coax 2 ft. N-Female/SMA-Male Connectors icon 2′ Top Signal RG58U coax with N‑female & SMA‑male connectors TS386002

    Works with the AT&T FirstNet network

    The CEL-FI GO G41 FN cellular booster system works only on AT&T’s FirstNetexternal link icon and consumer cellular networks. It amplifies six bands of frequency:

    • AT&T consumer band 12 (lower 700 MHz).
    • AT&T FirstNet band 14 (upper 700 MHz).
    • AT&T consumer band 5 (850 MHz).
    • AT&T consumer band 4 (1700/2100 MHz).
    • AT&T consumer bands 2 & 25 (1900 MHz).

    It does not boost signal for other cellular networks or frequencies.

    Not sure which bands your phone uses? Contact us—our technical support reps will be happy to help you!

    FirstNet logo with other carrier logos crossed out The FirstNet logo is a registered trademark of FirstNet, an independent authority within the U.S. Department of Commerce.

    Which antennas should I choose?

    This complete kit includes both an outdoor directional and omnidirectional antenna and gives you the choice of one to four indoor dome or panel antennas. Here are some general guidelines for choosing and using the right antennas.

    Outside (donor) antenna:

    • The cylindrical Top Signal omnidirectional antenna works well in many situations. An omni antenna sends and receives signal to and from your carrier’s cell towers in all directions, and it doesn’t require any adjustment once it’s set up.
    • The wedge-shaped Top Signal directional antenna (LPDA) works best if your home has a reasonably clear line of sight to a specific cell tower that provides service for your cellular network. A directional antenna needs to be tuned (adjusted until it’s receiving the best signal), so setup is more involved than setting up an omni antenna.

    Learn more about omni vs. directional antennas
    Learn how to find the strongest cell tower in your area

    Inside (broadcast) antenna:

    • The ceiling-mounted Top Signal EDGE dome antenna works best in many situations. It broadcasts downward and all around in a shape similar to a donut or an inner tube. It usually gives more broad, even coverage than a wall-mounted panel antenna and is less noticeable than a panel antenna. Installing a dome antenna does, however, require that you have access above the ceiling to pull cable and mount the antenna.
    • The wall-mounted Top Signal EDGE panel antenna broadcasts forward in a sideways teardrop shape. It’s a better option if you don’t have access above your ceiling or if you want to mount the antenna on the outside perimeter of the area you want to cover. It’s also a good option for long, narrow indoor areas.

    If you’re uncertain which antennas will work best for you, please call us at 435-634-6800. Our technical support representatives will be happy to discuss your specific requirements and give you a recommendation based on years of professional experience.

    How much area will the CEL-FI GO G41 FN cover?

    The coverage area this in-building cellular coverage solution can provide depends on many factors, including:

    • Outside signal strength received by the donor antenna.
    • The outside antenna you use.
    • The length of coax cable between the outside antenna and the booster. (Always use the shortest cable possible for this run.)
    • The type of antennas you choose (dome or panel) and where you position them.
    • Inside building materials. (Cellular frequencies pass through wood framing and drywall more easily than through steel and concrete.)
    • The cellular frequencies used by the carrier. (Lower-frequency SMH and CLR signals travel farther than higher-frequency AWS and PCS signals.)

    In general, the stronger the outside cell signal, the greater the interior broadcast distance.

    Powerful Signal has has been designing and installing cellular amplification systems since 2007. Please call us at 435-634-6800 or contact us online, and we’ll be happy to calculate the coverage area this system will provide in your building and answer any other questions about this amplifier.

    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 www.P65Warnings.ca.govexternal link icon.

    Product Specifications

    Usage:
    Commercial or public building / home
    Strong outside signal (−95 dBm RSRP, 5 bars):
    Up to 20,000 ft² indoor coverage
    Fair outside signal (−105 dBm RSRP, 3 bars):
    Up to 10,000 ft² indoor coverage
    Weak outside signal (−115 dBm RSRP, 1 bar):
    Up to 3,000 ft² indoor coverage
    Outside Antenna:
    Omnidirectional cylinder & directional LPDA
    Inside Antenna:
    Omnidirectional dual-mount dome or directional flex-mount panel (1–4)
    Cable Type:
    400
    Connector Type:
    SMA & N
    Impedance:
    50 Ω
    Gain/Loss:
    +100 dB max
    Max Output Power (Uplink):
    20–22 dBm
    Max Output Power (Downlink):
    16 dBm
    Booster Case Material:
    Metal
    Signal Readout:
    LED light & smartphone app
    Pricing:
    Call for pricing

    Warranty Information

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

    Questions & Answers

    Customer Reviews