SureCall 5X Max Cell Signal Booster with 2 Antennas | SC-5XMax-Y2U

SureCall 5X Max Cell Signal Booster with 2 Antennas & SureCall Cloud

SureCall’s most advanced cellular amplification solution
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  • Coverage for large office, residential & commercial buildings
  • Two inside antenna ports with full gain & power to each broadcast antenna
  • SureCall’s Extended Range Technology reduces or eliminates signal loss from the outside antenna to the booster
  • Metal case with LCD display & optional manual controls
  • One year of SureCall Cloud remote monitoring & administration free with purchase
  • Boosts both voice & data for all major cellular carriers
Outside Signal Strength
Coverage @ 700 MHz LTE
5 Bars
Up to 80,000 ft²
3 Bars
Up to 50,000 ft²
1 Bar
Up to 10,000 ft²

Free lifetime support
Calculated at Checkout

Product Description

Features of the SureCall 5X Max

  • The most powerful enterprise cell phone signal booster in its class, providing up to 80,000 square feet of indoor cellular coverage in large office buildings, residential MDUs, and commercial spaces. (Learn more about coverage area.)
  • The first commercial booster to feature SureCall’s proprietary Extended Range Technology™ (ERT), which reduces or eliminates signal loss in the outdoor cable by amplifying cellular signal at the outside donor antenna before sending it to the inside host amplifier. This patented innovation provides more indoor coverage, longer range to the cell tower,and faster cellular data speeds.
  • Two inside antenna ports on the booster each provide full gain to both inside low-profile dome antennas. The SureCall 5X Max is effectively two boosters in a single unit.
  • Includes remote monitoring to manage the booster system on- or off-site. The SureCall Cloud™ web interface indicates signal strength and booster performance in real time for help with initial installation and ongoing troubleshooting. (Learn more about SureCall Cloud.)
  • Integrated LCD display and controls allow you to see uplink and downlink gain and power by frequency band and make manual gain adjustments, if needed.
  • 2XP technology doubles uplink transmission to the cell tower for optimum performance in areas with weak signal, and SureIQ technology auto-adjusts gain in strong signal areas to prevent booster overload and shutdown.
  • Sturdy metal case with heat sink.
  • Includes 400-type coax cable and commercial-grade antennas and components.
  • Carrier agnostic: Works with all major U.S. and Canadian carriers.
  • Improves 5G and 4G/LTE service for voice, text, and data. (Learn more about 5G compatibility.)
SureCall 5X Max front panel The SureCall 5X Max features an LCD display with optional manual gain control for each band of cellular frequency.

Who is the SureCall 5X Max for?

  • Offices, multidwelling units (MDUs), commercial/industrial buildings, and public facilities in urban environments with building materials that block outside cell signal (steel, glass, concrete, plaster, etc.).
  • Commercial and residential buildings in remote locations with weak outdoor cell service.
  • Buildings with below-ground floors where cell reception is poor.
  • Offices that frequently experience dropped calls, undelivered texts, or slow cellular data service.

Two inside antennas for maximum flexibility and coverage

The SureCall 5X Max system includes two inside dome antennas, each connected to its own port on the host amplifier that provides maximum gain.

You’ll need a drop ceiling, an attic, or a crawlspace above the ceiling to pull cable and mount these antennas.

Sample SureCall 5X Max 2-antenna setup Sample SureCall 5X Max two-antenna setup

Integrated SureCall Cloud service

The SureCall 5X Max includes SureCall Cloud service that provides remote monitoring and administration tools for I.T. departments and system integrators anywhere, without having access to the building’s Ethernet or WiFi network.

With the SureCall Cloud you can remotely log on to the 5X Max through your phone, computer, tablet, or other device with a web browser. Once logged in, you can:

  • Monitor the booster’s uplink and downlink gain and power and user capacity levels in real time and see historical reports.
  • Manually adjust uplink and downlink gain, power, and attenuation limits for each band of cellular frequency (if needed).
  • Remotely power cycle (reboot) the system.

Remote monitoring is available through a cellular connection and requires a SIM card.

A one-year SureCall Cloud subscription is included with the purchase of the 5X Max and is billed annually thereafter. For subscription pricing information, please call Powerful Signal at 435-634-6800 or contact us online.

Optional plenum air coax cable upgrade

The SureCall 5X Max system includes 400-type coax cable to connect the amplifier to the inside antenna. If your building requires fire-rated cable in plenum spacesexternal link icon, please ask us about upgrading to ½-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 400-type coax cable, delivering stronger signal from the SureCall amplifier to your phones and other cellular devices.

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

400-type coax cable and plenum air coax cable terminated with N-male connectors This system uses 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 SureCall 5X Max solution

In a large building, office, or warehouse, you’ll get the best results and performance from a SureCall 5X Max 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 cellular coverage inside your building.

Powerful Signal’s professional installer will have knowledge of local building codes and have 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 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!

Office floor with a cellular booster system and dome antenna An office floor with amplified cellular signal from a SureCall amplifier and one dome antenna.

Purchasing a SureCall 5X Max system

The 5X Max system comes with the following components.

SureCall 5X Max inside host amplifier SC-5XMax icon Inside host amplifier
SureCall AC/DC 12V/3A power Supply SC-AC-12V3.8A-B icon AC/DC power supply
SureCall 5X Max oustide amplifier SC-5XMax icon Outside amplifier
SureCall Ultra Wide Band Yagi Outside Antenna SC-530W icon SureCall ultra wideband outdoor LPDA antenna SC-530W
SureCall Ultra-Thin Low-Profile Indoor Dome Antenna SC-528W icon SureCall ultra-thin indoor dome antenna SC-528W (×2)
SureCall Ultra Low-Loss Coaxial Cable SC-400 icon 100′ SureCall ultra low-loss coax cable SC-400 SC-001-100 (×3)
SureCall 5X Max user guide icon SureCall 5X Max user guide
Top Signal 38-Inch Adjustable Building Antenna Mount TS430002 icon Optional add‑on
38″ adjustable antenna mount w/lag screws TS430002
Top Signal 50-ohm lightning surge protector TS450001 icon Optional add‑on
Top Signal 50‑ohm lightning surge protector TS450001

Cable length requirements

The coax cable run from the outside amplifier to the inside host amplifier must meet the following requirements set by the manufacturer:

  • Minimum length: 50′ (400-type coax)
  • Maximum length: 150′ (400-type coax) or 300′ (half-inch coax)

Cable runs outside of those parameters will cause the host amplifier to shut down or not operate properly.

How the SureCall 5X Max works

Using SureCall’s patented SureIQ™, 2XP™, and ERT™ technologies, the 5X Max receives the outside cell signal, amplifies it, and rebroadcasts it inside your building through two ceiling-mounted dome antennas. This allows you to stay connected when outside cell service is poor or where your building’s construction materials interfere with signals from the local cell tower.

Works with all major cellular carriers

The SureCall 5X Max works with all major wireless carriers, including Verizon, AT&T, T-Mobile, DISH Wireless, UScellular, GCI Alaska, and most others.

It operates on common cellular frequencies.

  • 700 MHz (SMH) bands 12, 13, 17.
  • 850 MHz (Cellular 850) band 5.
  • 1700/2100 MHz (AWS) band 4.
  • 1900 MHz (PCS) bands 2, 25.
Carrier logos for Verizon, AT&T, T-Mobile, UScellular, DISH Wireless, GCI Alaska

How much area will the SureCall 5X Max cover?

This system comes with two thin dome antennas that broadcast improved cellular signal in a spherical pattern. With strong outside cell signal (−75 dBm RSRP or greater), these antennas can cover up to 80,000 square feet of indoor building space with 700 MHz signal. The size of the coverage area you’ll experience depends on many factors, including:

  • Outside cell signal strength received by the donor antenna.
  • Placement of the dome antennas in the building. The antennas should be placed as far from each other as needed to get maximum coverage.
  • Inside building materials. Cellular frequencies pass through wood framing and drywall more easily than through steel and concrete.
  • Cellular frequencies used by the carrier and the device. Lower-frequency 700 MHz and Cellular (850 MHz) signals travel farther than higher-frequency PCS (1900 MHz) and AWS (1700/2100 MHz) signals.

Substandard or inadequate conditions in any of these factors will reduce your coverage area.

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 which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to link icon.

Product Specifications

Large commercial / multiple dwelling unit
Strong outside signal (−95 dBm RSRP, 5 bars):
Up to 80,000 ft² indoor coverage @ 700 MHz (depending on number of inside antennas)
Fair outside signal (−105 dBm RSRP, 3 bars):
Up to 50,000 ft² indoor coverage @ 700 MHz (depending on number of inside antennas)
Weak outside signal (−115 dBm RSRP, 1 bar):
Up to 10,000 ft² indoor coverage @ 700 MHz (depending on number of inside antennas)
Outside Antenna:
Directional LPDA
Inside Antenna:
Omnidirectional ultra-thin dome (×2)
Cable Type:
Connector Type:
50 Ω
+72 dB max
Max Output Power (Uplink):
20.7 dBm
Max Output Power (Downlink):
15.9 dBm
Booster Case Material:
Signal Readout:
LCD display & web portal

Warranty Information

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

Questions & Answers