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Cel-Fi GO X Smart Signal Booster (AT&T, T-Mobile, or Verizon)

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Item Number: 7440

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Antennas are NOT included - you must select an exterior antenna here. If you already have a compatible antenna you plan to use (double check your connectors! The GO-X has SMA/Female connectors), you may select the "I don't need antennas" option at the bottom of the list.
Select Outside Antenna (required) - details
The panel and yagi antennas include brackets for wall mounting, but a pole mount is recommended for easier mounting and aiming. The marine antenna has standard threads for mounting to marine mounts.
Add Mount (optional) - details
The panel and yagi antennas will need a cable to connect to the amplifier. The marine antenna has a 20' cable attached, but an extension can be added if needed. If you already have a compatible cable you plan to use (double check your connectors! The Go-X has SMA/Female connectors), you may select the "I already have a cable" option at the bottom of the list.
Select Cable for External Antenna (required for panel/yagi) - details
Antennas are NOT included - you must select an inside antenna here to rebroadcast the boosted signal. The panel and dome antennas require cabling and need to be installed on a wall or ceiling. The whip antenna screws directly onto the amplifier and requires no installation (but provides less coverage). If you already have a compatible antenna you plan to use (double check your connectors! The GO-X has SMA/Female connectors), you may select the "I don't need antennas" option at the bottom of the list.
Select Inside Antenna (required) - details
If you are using the panel or dome antenna, you will need a cable to connect the inside antenna to the amplifier. If you selected the whip antenna OR if you already have a compatible cable you plan to use (double check your connectors! The Go-X has SMA/Female connectors), you may select the "I already have a cable" option at the bottom of the list.
Select Cable for Inside Antenna (required for panel/dome) - details


  • Coverage area*: up to 12,500 square feet
  • All-in-One Kit? NO - external and internal antennas are required, along with cabling to connect to the amplifier (see above)
  • Compatibility: This amplifier can be set to AT&T (3G/4G/LTE), T-Mobile (3G/4G/LTE), or Verizon (LTE only) - you must choose one, it will NOT boost all three at the same time.
    • Verizon users: this amplifier will not help with Verizon 3G, and it will only help with voice/calling if you have HD Voice/VoLTE enabled on your phone and are in an LTE area. Read more about enabling HD Voice/VoLTE

Cel‐Fi GO X uses Nextivity’s award-winning, network-safe Cel-Fi Smart Signal Booster technology to dramatically improve voice and data coverage in up to two (2) bands for 3G, 4G, and LTE. It is designed to improve indoor and outdoor cellular coverage when one bar is available outdoors, by allowing an antenna to be used to improve indoor cellular performance. Cel-Fi GO X is cost efficient and easy‐to‐deploy by an installer, and can be easily optimized and monitored by the Cel-Fi WAVE platform.

Key Features:

  • 3G / 4G / LTE Voice and Data
  • Superior Performance: 100dB Max Gain
  • Multi-User Mobile Coverage
  • Multi-Carrier Support with Carrier Switching
  • Indoor / Outdoor NEMA 4 Rated
  • Network Safe
  • Cel-Fi WAVE management platform

*Many factors will influence the actual coverage area you will see from a repeater, including layout/floorplan, construction, and original un-amplified signal strength. Depending on your situation, you may see more or less coverage than the estimates listed here. It is not possible to guarantee coverage area.

Installation notes:

  • In order for your system to function properly, you must maintain adequate separation between the outside and inside antennas (if the antennas are too close together, there will be oscillation/feedback between the antennas and the amplifier will power down). This amplifier requires approximately 100' of separation between the outside and inside antennas. Separation can be horizontal or vertical.
  • If you cannot achieve adequate separation to eliminate oscillation, the gain on the amplifier will automatically adjust, but that will result in a smaller coverage area from the amplifier.
  • Make sure the inside antenna is aimed AWAY from the outside antenna if possible.

Features & Benefits:

  • 3G & 4G / LTE support (WCDMA / HSPA+ / LTE)
  • Supports two (2) bands simultaneously from a single operator
  • Up to 100dB system gain, per band
  • Peaceful coexistence with adjacent Wi-Fi (2.4 GHz & 5 GHz), femtocells, and cellular devices
  • Advanced digital echo-cancellation (>30dB) and channel select filtering algorithms
  • Automatic Gain Control (AGC) based on fast real-time echo-cancellation
  • NEMA 4 rated enclosure and connectors
  • Glanceable LED User Interface (UI)
  • Supporting smart phone application (WAVE)
  • Convection cooled cast aluminum chassis
  • Easy mounting capability (mounting screws and anchors included)
  • Systems are pre-configured for a single carrier (network operator)
  • Works with any user equipment (UE) on the configured network (no whitelist/blacklist)
  • System intelligence accurately establishes proper safe uplink power in real time
  • Uplink Muting Mode automatically shuts down uplink cellular transmissions when no active user equipment is detected
  • System shuts down upon Operator’s network command or failure detection
  • Nextivity purpose-built, high-performance, six core ASIC processor, provides best performance at lowest cost

Package Includes:

  • Amplifier
  • Power supply
  • Mounting screws and anchors

Additional equipment required (not included):

  • External (donor) antenna
  • Internal (server) antenna
  • Cables to connect antennas to amplifier (SMA Male connectors)


  • Compliance:
    • 3GPP TS 25.143 Rel.10
    • 3GPP TS 36.143 Rel.10
    • FCC Part 15, 20, 22, 24, 27
    • Bluetooth BQB
    • CE
  • System Management (Software):
    • Supported by WAVE cloud portal
    • WAVE Portal capability:
      • Status (List and Map)
      • Settings
      • Commissioning
      • Reporting
      • Diagnostics
      • Alarms & Notifications
      • Software Updates
  • Antenna Ports (donor & server):
    • 699 – 2180 Mhz
    • Impedance: 50 Ohm
    • Return Loss: 8 dB
    • Output Protection
    • SMA Female
  • Environmental:
    • Operating temperature: 0° to 65° C
    • Convection Cooling
    • Relative humidity: 0% to 95%, noncondensing
    • WEEE
    • NEMA 4
    • Surface Temp at any point (30° ambient): 53° C
  • Dimensions:
    • 1.71" x 3.8" x 10.73"  (43.5mm x 96.5mm x 272.5mm)
    • 1.87lb (850g)
  • Power:
    • 9.6 – 16.5V
    • 2A current draw
    • 16W nominal power consumption
  • Installation:
    • Mounting hardware included
  • DC Power Plug & Jack:
    • NEMA 4 rated power plugs and jack
  • Radio Performance:
    • The GO system can boost up to two (2) bands concurrently. Either profile can be selected:
      • A) One (1) High band boost and one (1) low band boost or
      • B) Two (2) high bands boost
  • Bands Supported:
    • Band 2:
      • Downlink: 1930-1990 MHz
      • Uplink: 1850-1910 MHz
      • MHz: Up to 20MHz contiguous boost, HSPA or LTE
    • Band 4:
      • Downlink: 2110-2155 MHz
      • Uplink: 1710-1755 MHz
      • MHz: Up to 20MHz contiguous boost, HSPA or LTE
    • Band 5:
      • Downlink: 869-894MHz
      • Uplink: 824-849 MHz
      • MHz: Up to 15MHz contiguous boost, HSPA or LTE
    • Band 12:
      • Downlink: 729-746 MHz
      • Uplink: 699-716 MHz
      • MHz: Up to 10MHz contiguous boost, LTE
    • Band 13:
      • Downlink: 746-756 MHz
      • Uplink: 777-787 MHz
      • MHz: Up to 10MHz contiguous boost, LTE

This is a CONSUMER device.
BEFORE USE, you MUST REGISTER THIS DEVICE with your wireless provider and have your provider's consent. Most wireless providers consent to the use of signal boosters. Some providers may not consent to the use of this device on their network. If you are unsure, contact your provider.
You MUST operate this device with approved antennas and cables as specified by the manufacturer. Antennas MUST be installed at least 20 cm (8 inches) from any person.
You MUST cease operating this device immediately if requested by the FCC or a licensed wireless service provider.
WARNING. E911 location information may not be provided or may be inaccurate for calls served by using this device.
Please note, the four largest carriers - AT&T, T-Mobile, Verizon and Sprint - and more than 90 regional carriers have given blanket consent for use of all boosters certified to the new FCC standards.

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All Reviews (4)

Only customers who bought this item from 5Gstore can write a review - these are all verified 5Gstore purchases

Date Added: 03/27/2019 by Ken S. (Palacios, TX)
I bought this to used while camping in our RV in the Colorado mountains this summer. To date, I've only temporarily set it up at my house (where there is a relatively strong cell signal) to verify it works (which it did). So I cannot comment on the product beyond that.

Date Added: 03/11/2019 by Thomas S. (Marengo, IL)
This is quite a good device. Without this amplifier and yagi attenna, my RSRP is -122 dB which is barely 1 bar. After the installation, configuring the amplifier for Verizon, and proper pointing of the antenna, I am now at a solid 4 bars and -74 dB with a SNR of 5-10. I live in a heavily wooded area 2-3 miles from the nearest cell tower. I am in fact, in between 2 cell towers - 1 to my northwest and 1 to my southeast.

The setup I purchased is the booster, yagi antenna, interior antenna, 100' of low loss cable between the booster and the yagi antenna and 30' low loss cable between the booster and the inside antenna. This configuration replaced a SureCall Fusion4home which was pretty good. This is better by 10 - 20%.

The folks at the 5Gstore are amazing as well. Thank You very much and may God bless each of you.

Date Added: 12/10/2018 by Sheila. (Miami, FL)
Appears to be working ok, took a 1-2 bar signal to 2-3 bars.

Date Added: 10/19/2017 by JAMES S. (Delta Junction, AK)
The Cel-Fi GO X Booster is an outstanding solution for difficult sites. Up here in remote Alaska my cabin is in a hole with the nearest cell tower a little over 20 miles away. My site survey did not produce a workable signal until I was up a 24 foot extension ladder against a spruce tree, on top of a nearby hill, over 400 feet from the cabin. I spoke with lots of folks from different companies but it was Valerie on the 3G Store team and her “can do” attitude that told me about the Cel-Fi GO X. Valerie and I had extensive technical conversations. The “ace up the sleeve” on this booster is the 100 dB boost which is 30 dB over what anyone else can do because of Cel-Fi agreements with ATT and Verizon. In my case the best I could do after extensive site preparation, which included clearing a “sight line” from the top of the hill through the forest towards the cell tower was -112 dB (fairly solid 1 bar) at the top of the ladder, but still over 400 feet from the cabin! Valerie pulled together my order with the Cel-Fi Yagi, 50 ft of LMR400 coax to the Cel-Fi GO X Booster, 450 feet of custom LMR 400 coax to the cabin and the Cel-Fi Panel antenna for inside.
The booster is now mounted up the hill in a small outbuilding I placed at the base of the spruce to keep the coax run between the antenna and booster as short as possible. I ascended the spruce and “topped” it when the diameter of the tree got to about 3 ˝ inches. Next, I bolted on a 13 foot pole to which I mounted the Cel-Fi Yagi which ended up about 50 feet above ground. One of the neat things about this booster is the “Wave” application that allows you to check various performance measures and settings via “blue tooth”. When I energized the system I could now check measurements of signal strength at the point it enters the booster BEFORE amplification. With the gain of the Yagi itself and the fact that the height of the Yagi was higher than I could ever physically get I am now getting -93 dB going INTO the Booster. The big unknown was how the amp was going to perform down a 450 foot LMR 400 coax run to the cabin.
BOTTOM LINE – I now get -81dB (5 bars!) of LTE inside the cabin six feet in front of the panel antenna! Remember, there was NO SIGNAL inside, outside or even on the roof of my cabin. This pulled our cabin right out of the stone age and now we are able to stream multiple TV sets, internet and phone calls all at the same time. We live off the grid and I am able to power the GO X Booster up the hill from the cabin via a dedicated inverter off my 12 volt battery bank running 110v power up a 10 gauge cable which runs along side the coax coming down the hill. We were pushing hard to finish this project before the “freeze-up” which is occurring as I write this (mid October). Everything is now covered in snow that will not melt until April.
Our extreme temperatures are, of course, a concern for the “operating temperature” of the booster. Once again the “Wave” application allows me to check the internal temperature of the booster which creates enough heat to protect itself quite a bit. I could see that at an outside temperature below freezing in the upper 20's F the internal temp of the booster was still above 70 F. To address our super cold of subzero down to -30F to -40F I built an insulated box which dramatically harvests and recycles the heat with initial tests showing an 80F difference between amp temps & outside temps so I am optimistic the setup will work well through the super cold. The “Wave” application allows me to hike up to what we are now calling “LTE Hill” in the snow and check the temperature of the booster without disturbing the insulted box or even entering the outbuilding.
If you have a tough site take heart from my experience and consider the Cel-Fi GO X! This booster changes the definition of what is possible when you perform your site survey.

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Can this booster be used in a mobile environment? Such as a car?

This product is not recommended for mobile environments as it utilizes a donor antenna and server antenna to receive and transmit signal. The donor antenna should be placed at the point of strongest signal, preferably outdoors and positioned high. The donor antenna is then aimed in the correct direction with assistance of a downloadable app. The server antenna should be separated from the donor antenna as much as possible.

What is the minimum outdoor signal strength in db required for the Cel-Fi Go X to work?

-120db, however, we find that -118db is best.

What is the max transmit db power on the Cel-Fi Go X system?

It is up to 100dB system gain, per band.

Are there any Cel-Fi kits that support more than 1 carrier?

No, they are carrier specific, which allows them to bypass the standard FCC rules that amplifiers fall under. This includes rules regarding the amplifier gain. While most amplifiers max out around 72db, the Cel-Fi kits max out at 100db. This increased gain not only results in a potentially stronger signal, but also to support much larger coverage areas (72db gain systems typically cover up to 6000 sq ft, while the Cel-Fi is capable of up to 13000 sq ft).

Can I use more than one Cel-Fi unit if I need to support multiple carriers?

Yes, unlike the traditional cabled kits from SureCall and weBoost, the Cel-Fi kits can be used in the same location without causing interference between the systems.

Cel-Fi Go X Quick Start Guide Download installation guide/manual

Purchasing this product gets you access to the following exclusive 5Gstore resources:
Cel-Fi: Installing multiple systems in 1 location
Cel-Fi Go: Changing Carrier
Cel-Fi: How to Register via Computer 06/07/2017
Cel-Fi: How to Register via Wave App 06/07/2017
Cel-Fi Wave Application 04/26/2016
Cel-Fi Pro Troubleshooting Error Codes 04/26/2016

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