Top Signal TS250620 spec sheet (PDF)
Top Signal TS260820 spec sheet (PDF)
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Top Signal TS‑400 coax TS340000 spec sheet (PDF)
What’s my actual cell signal strength?
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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.
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.
Sample multi-antenna indoor setups.
The Nextivity WAVE app for smartphones lets you check your CEL-FI GO G41 FN booster’s status and change its settings:
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 cable
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.)
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.
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!
An office floor with amplified cellular signal from a CEL-FI GO G41 FN FirstNet booster and one dome antenna.
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 cell signal booster G41-CE-003
AC/DC 12V ⎓ 2.5A power supply SK03T1-1200250U
Wideband outdoor omni antenna
Wideband outdoor LPDA antenna
Top Signal N‑female to N‑female barrel connector TS451017
Adjustable rooftop antenna mount TS430001
Top Signal 50‑ohm lightning surge protector TS450001
CEL-FI GO G41 installation guide
The one-antenna kit includes:
Choice of…
…or 
50′ Top Signal TS‑400 coax with N‑male connectors TS340050
30′ Top Signal TS‑400 coax with N‑male connectors TS340030 (×2)
2′ Top Signal RG58U coax with N‑female & SMA‑male connectors TS386002 (×2)
The two-antenna kit includes:
Choice of…
…or 
75′ Top Signal TS‑400 coax with N‑male connectors TS340075
50′ Top Signal TS‑400 coax with N‑male connectors TS340050
30′ Top Signal TS‑400 coax with N‑male connectors TS340030 (×2)
Top Signal 2‑way 50‑ohm splitter TS412101
2′ TS-195 coax w/N‑male & SMA‑male connectors TS333002
2′ Top Signal RG58U coax with N‑female & SMA‑male connectors TS386002
The three-antenna kit includes:
Choice of…
…or
75′ Top Signal TS‑400 coax with N‑male connectors TS340075
50′ Top Signal TS‑400 coax with N‑male connectors TS340050 (×3)
30′ Top Signal TS‑400 coax with N‑male connectors TS340030
Top Signal 3-way 50-ohm splitter TS413101
2′ TS-195 coax w/N‑male & SMA‑male connectors TS333002
2′ Top Signal RG58U coax with N‑female & SMA‑male connectors TS386002
The four-antenna kit includes:
Choice of…
…or
75′ Top Signal TS‑400 coax with N‑male connectors TS340075
50′ Top Signal TS‑400 coax with N‑male connectors TS340050 (×4)
30′ Top Signal TS‑400 coax with N‑male connectors TS340030
Top Signal 4-way 50-ohm splitter TS414101
2′ TS-195 coax w/N‑male & SMA‑male connectors TS333002
2′ Top Signal RG58U coax with N‑female & SMA‑male connectors TS386002
The CEL-FI GO G41 FN cellular booster system works only on AT&T’s FirstNet and consumer cellular networks. It amplifies six bands of frequency:
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!
The FirstNet logo is a registered trademark of FirstNet, an independent authority within the U.S. Department of Commerce.
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:
Learn more about omni vs. directional antennas
Learn how to find the strongest cell tower in your area
Inside (broadcast) antenna:
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.
The coverage area this in-building cellular coverage solution can provide depends on many factors, including:
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.
For information on federal rules governing the use of consumer cell signal boosters, please see our FCC notice page.
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.gov.
Product Specifications
Warranty Information
For warranty information on this product, please see our Nextivity warranty information page.
Questions & Answers
