Uniden UM50 FN FirstNet Small Command Center Cell Signal Booster

Discontinued

Mobile public safety signal booster for small mobile command centers
Amplifies 700 MHz FirstNet band 14 & AT&T band 12
Your choice of high-gain whip antenna, inc. a model with a quick-release mount
Stainless steel “bull bar” antenna mount folds down quickly & easily for low-clearance areas or vehicle storage
Inside directional panel antenna; stands upright on any flat surface & is easily moved where you need better signal
Improves signal for up to 20 phones in the same vehicle
Includes 12V DC socket power supply & 12V DC hardwire power supply

Product Description

This product has been discontinued. Please see our other mobile cell signal boosters.

Features of the Uniden UM50 FN for Small Command Centers

Combines Uniden’s FirstNet mobile cell phone signal booster with a high-gain whip antenna and high-gain panel antenna for the best possible signal in your vehicle.
Provides emergency cellular communications in mobile law enforcement command centers and incident investigation vehicles.
Works with AT&T’s FirstNet cellular network.
The Uniden booster installs easily in any other convenient, well-ventilated spot. Mounting holes allow you to secure the booster to drillable surfaces.
Your choice of outside antenna:
Standard: The RFI 26″ whip antenna has 4.5 to 5.5 dBi of gain and has 16.4′ of attached RG58 coax cable.
Optional upgrade: The RFI 38″ quick‑release whip antenna has 4.5 to 6.5 dBi of gain and a quick-release feature for fast and easy storage. It also includes 16.4′ of attached RG58 coax cable.
The fold-down “bull bar” mount lays the whip antenna flat for low clearance or storage. The mount operates instantly with a spring‑loaded pin and includes a stainless steel 3‑way rail mount.
Top Signal’s directional EDGE panel antenna stands upright on any flat surface. Move the antenna where you need improved cell signal inside your vehicle. This antenna connects to the booster with a 10, 15, 20, or 30 feet of thin, flexible coax cable.
Includes a 12V DC socket power supply and a 12V DC hardwire power supply—use whichever power supply meets your vehicle’s needs.
Boosts service for voice, text, and data.
Boosts cell signal for multiple users simultaneously.

RFI FBBM-B Folding Bull Bar Mount for OTR Antennas TS432702

RFI’s “bull bar” mount for whip antennas lets you lay the antenna flat instantly with a spring‑loaded pin. (Click to enlarge.)

FirstNet is a high-speed, nationwide wireless broadband network maintained by AT&T for public safety communications. This network has dedicated cellular frequencies for law enforcement, firefighters, ambulances, and other first responders and public safety agencies.

The Uniden UM50 FN cell phone signal booster helps you stay connected and experience fewer dropped calls, undelivered texts, and missed email messages at all times, including during emergencies. It amplifies FirstNet band 14 and AT&T band 12.

Powerful Signal’s UM50 FN system for large vehicles includes an RFI OTR whip antenna that provides 4.5 to 6.5 dBi of signal gain, sending up to 4½ times the signal to the booster so you can stay connected, experience fewer dropped calls and missed messages, and have more reliable access to smartphone apps.

Who is this Uniden UM50 FN system for?

When you need the best cell phone signal in your car at the best possible price.

Mobile command centers, communications and command posts, incident investigation, and similar vehicles.
SWAT vans and armored rescue vehicles.
First responder vehicles operating in remote locations with weak cell service (new communities, rural areas, etc.)

Installation

Attach the stainless steel 3‑way mount to a rail or bracket or mount it directly to the side of the vehicle near the roof line. Mount it in a location that will provide the whip antenna with the clearest 360° field of view. Secure the bull bar mount to the 3‑way mount with the threaded bolt.
Thread the cable connected to the whip antenna’s spring mount through the opening at the top of the bull bar mount. Secure the antenna to the bull bar mount with the jam nut.
Run the RG58 coax cable inside to the booster unit. If you run the cable through a door, thread it through and behind the doorway’s weatherstripping, securing the cable where needed to keep it from flailing in the wind. Connect the end of the cable to the booster. Do not pinch, kink, loop, or coil the cable.
Place the Uniden UM50 FN booster in a location where it will have adequate ventilation.
Attach the small SMA connector at one end of the 10′ 195 coax cable to the booster. Attach the large N connector at the other end to the panel antenna. Do not pinch, kink, loop, or coil the cable.
The panel antenna stands upright on any flat surface and broadcasts in the direction its front face is pointed. Once the booster system is set up, you can mount the panel on any flat surface or move it where you need cell signal most. (The closer the server antenna is to the phone, the more likely you are to receive improved signal when outside reception is very weak.)
Plug in the booster using the DC socket power supply or the DC hardwire power supply.

Uniden UM50 FN FirstNet Small Command Center cell signal booster setup diagram

Typical setup of the Uniden UM50 FN small command center booster (click to enlarge)

Uniden UM50 FN for Small Command Centers kit contents

This is a complete kit, with everything you need to start getting the best signal in your vehicle:

Uniden UM50 FN cell signal amplifier 7021FN

RFI 26″ black fiberglass whip antenna w/attached spring mount & 16.4′ black RG58 coax cable CD7194‑B & SMA/FME adapter TS451019

RFI bull bar antenna mount w/nut & washers TS432702

Stainless steel 3‑way mount TS432111

Top Signal EDGE indoor panel antenna w/mounting hardware TS260820

10′ 195 coax w/N‑male & SMA‑male connectors TS333010

12V DC/DC power supply w/1′ coiled cable (extends to 4′ max)

12V DC hardwire power supply w/10′ cable & inline fuse

Magnet‑mount outside antenna w/10′ RG58 coax cable (not used w/whip antenna)

Adhesive‑mount inside patch antenna w/10′ RG174 coax cable (not used w/whip antenna)

Optional upgrade
RFI Q‑Fit 38″ black fiberglass whip antenna w/quick release spring mount & 16.4′ black RG58 coax cable CDQ7195‑B

Works with the AT&T FirstNet network

The Uniden UM50 FN FirstNet booster system works only on AT&T’s FirstNet cellular network, which includes two bands of frequency:

Band 12 (uplink 699–716 MHz; downlink 729–746 MHz).
Band 14 (uplink 788–798 MHz; downlink 758–768 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!

The FirstNet logo is a registered trademark of FirstNet, an independent authority within the U.S. Department of Commerce.

Documentation

Download the Uniden UM50 FN data sheet (PDF)

Uniden UM50 FN spec sheet (PDF)

Download the Uniden UM50 FN install guide (PDF)

Uniden UM50 FN user guide (PDF)

Download the RFI TS210513 vehicle antenna spec sheet (PDF)

RFI 26″ CD7194‑B spec sheet (PDF)

Download the RFI TS210701 vehicle antenna spec sheet (PDF)

RFI 38″ CDQ7195‑B spec sheet (PDF)

Download the Top Signal TS260820 spec sheet (PDF)

Top Signal panel antenna TS260820 spec sheet (PDF)

What’s my actual cell signal strength?

FCC notice

The Uniden UM50 FN is classified by the Federal Communications Commission (FCC) as a Part 90 Class B wideband industrial booster. To operate a UM50 FN booster you must obtain the express written consent of AT&T and register the booster with the FCC. Licensing and registration is the responsibility of the booster owner/operator; Powerful Signal cannot license boosters on behalf of its customers. Click here for more information on Part 90 boosters.

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.gov.