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Cel-Fi QUATRA 4000i (Part 90) Active DAS Hybrid Cellular Solution

Nextivity Cel-Fi QUATRA 4000

Cel-Fi QUATRA 4000i (Part 90) Active DAS Hybrid Cellular Solution

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    Cel-Fi Quatra is a custom designed in-building enterprise cellular system. It is a hybrid active Distributed Antenna System (DAS) that boosts coverage.

    • Up to 100 dB Active DAS Hybrid (1000x Stronger).
    • Single or Multi-Carrier Solution.
    • 3G / 4G / LTE for Voice and Data.
    • Carrier-Approved and Unconditionally Network Safe.
    • Scalable All-Digital PoE Cat5e Solution for Middleprise.
    • Remote Monitoring and Management via WAVE Platform.
    • Certifications: FCC, CE_RED, ISED, cETL, ETL, CE, ICASA, SRRC, NAL, RCM.

    Call for FREE consultation:


    Need installation quote, or help with designing a custom solution? Submit a request for quote.

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    Product Description

    Nextivity Cel-Fi QUATRA 4000i (Part 90) is in-building enterprise cellular signal booster system that improves coverage of all four major carrier networks in USA including bands 2, 4, 5, 12, 13, 25, 26, 30, 41, 71. It is a hybrid active DAS that solves coverage issues for voice and data.

    This hybrid signal amplifier or small cell signal enhancing system is easy-to-deploy and cost-efficient. This hybrid solution combines the best of Smart Booster and digital active DAS technologies. It is self-optimizing and self-configuring, while installation and configuration is made simple by the Cel-Fi WAVE Portal.

    Cel-Fi WAVE Platform cloud-based remote management platform enables device maintenance and management. Key features of the WAVE platform include:

    • Cel-Fi device and asset management.
    • Mobile and desktop applications.
    • Data modelling and reporting.
    • Alerts and alarms can be customized.
    • Globally trusted carrier-grade security.
    • The WAVE Platform portal can be accessed through its own dashboard, or integrated via APIs.

    The QUATRA is scalable and can be used to cover up to 500,000 square feet. It either operates in off-air mode, or it can be integrated with small cell equipment. In the latter case, it operates in distributed small cell mode and creates a Super Cell.

    Active DAS Hybrid.

    Cel-Fi QUATRA 4000i is available in two versions both offering all 4 major carrier coverage simultaneously.

    Its outdoor cellular donor signal is provided by the wide-band antennas. Coverage is provided via Power over Ethernet (PoE), eliminating the need for separate power supplies for the Coverage Units. The Network Unit uses Dynamic gain control in to automatically ensure the best coverage and maximum gain at all times.

    System Components:

    Network Unit (NU).

    The hub of the system is the QUATRA Network Unit (NU).  Its scalable design can work with between 1 and 6 Coverage Units (CU) to cover up to 75,000 square feet. The NU provides the donor signal to system and supplies power to up to 6 CUs (Coverage Units). It can be managed by the WAVE Platform. Model # Q44-1234CNU.

    Coverage Unit (CU).

    The remote radio head of the system that rebroadcasts the donor signal is called the Coverage Unit (CU). Each CU provides coverage in the QUATRA system, with up to 6 per NU. Each CU is powered from the NU by Power-Over-Ethernet (POE). Model # Q41-5ECU.

    Donor Antenna.

    The Wideband Antennas include the Cel-Fi LPDA-R Outdoor Antenna (model # A62-V44-200), Blade Antenna (model # A21-V44-500), LP SISO Indoor Low Profile Omni Antenna (model # A11-H43-201).

    Range Extender (QRE).

    The Range Extender is a Power over Ethernet (PoE) device that extends the maximum distance between the NU and a CU. Each range extender permits additional cable lengths.

    Carrier and Bands Configurations Available:

    AT&T Configurations.

    Bands: 12 and 5, 12 and 25, 12 and 4, 12 and 2, 30 and 5, 30 and 25, 30 and 4, 30 and 2.

    Sprint Configurations.

    Bands: 5 and 25, 5 and 2, 26 and 25, 26 and 2, 41 and 26, 41 and 25, 41 and 2, 41 and 5.

    T-Mobile Configurations.

    Bands: 25 and 4, 25 and 12, 4 and 12, 4 and 71, 25 and 71, 2 and 4, 2 and 12, 2 and 71.

    Verizon Configurations.

    Bands: 13 and 25, 13 and 4, 13 and 2.

    All Bands Supported.

    Bands: 2 | 4 | 5 | 12 | 13 | 25 | 26 | 30 | 41 | 71.

    Cel-Fi Quatra is a custom signal enhancing solution that consists of tiered equipment cost depending upon equipment required based on building construction design (or blueprint if available) and respective professional installation cost of that equipment. Therefore, the pricing varies greatly so we're very sorry we cannot provide even a rough equipment cost estimate and installation timeframe. Please submit location details at following link to begin process of determining an exact installation quote with installation time-frame:

    We look forward to maximizing wireless reception for you, at minimal cost possible. Please note that alteration will be required to ensure full coverage at the most cost effective price point. Please submit details at link above or please contact us for custom designing and installing this kit that requires professional installation by certified installers. We provide installations nationwide across United States for this and other cellular signal enhancing systems.

    WARNING. Per FCC laws and regulations, this INDUSTRIAL GRADE device must not be installed by consumers. It is designed for installation by QUALIFIED INSTALLERS only. You MUST have an express consent in writing from all Carriers in your service area to operate this device. Unauthorized use may result in significant forfeiture penalties, including penalties in excess of $100,000 for each continuing violation. Please contact us for a quote if you require professional installation and assistance with consent and approval process.

    Alternate part names:

    • cel-fi quatra
    • cel-fi quattra
    • celfi quatra
    • celfi quattra
    • cell-fi quatra
    • cell-fi quattra
    • cellfi quatra
    • cellfi quattra

    Cel-Fi QUATRA 4000i Intro Video:


    Cel-Fi QUATRA 4000i In-Building Enterprise 3G, 4G, 5G Cellular Coverage Solution.

    For enterprises, Cel-Fi QUATRA 4000/i is an affordable, all digital solution providing uniform, high quality cellular signals throughout a building.

    Why is the Cel-Fi QUATRA 4000i needed?

    Modern building materials, while improving energy efficiency, will block or inhibit cellular service from outside network. Cellular coverage is an increasingly critical part of any business operation and daily life. In fact, cellular coverage can be considered a safety or even regulatory requirement, depending on the region. Building owners need a flexible, high quality solution. Installers and value added resellers need a product that can serve the majority of building types and not take months to deploy. Cel-Fi QUATRA 4000i solves that problem. It is an affordable, all digital solution providing uniform, high quality cellular signals throughout the building. Cel-Fi QUATRA 4000i is scalable to fit buildings of all sizes. It is carrier approved and guaranteed network safe.

    What is Cel-Fi QUATRA 4000i?

    Unlike traditional analog boosters and passive DAS technology, QUATRA delivers a cellular signal that is up to 1000 times stronger. It utilizes CAT 5e cabling for the connection between the head end and each remote. The remotes are powered via power over ethernet, delivering an unattenuated signal throughout the building. Cel-Fi QUATRA 4000i can be installed in just days, compared to months typical of other solutions, and at a price point that meets the business budget.

    Features of the Cel-Fi QUATRA 4000i.

    Cel-Fi QUATRA 4000i is comprised of a network unit and up to six coverage units per network unit. The network unit takes the donor input from up to four carrier signal sources. The scalable architecture allows for as many network units needed for the size building being covered. The signal source can be off air (OA) / direct Carrier feed line, or over the air (OTA) from the macro network, or delivered via a small cell.

    The Network Unit (NU) receives and individually processes channels from each carrier, allowing a higher gain on weaker channels up to 100 DB. The channels are digitized and sent over a pair of ethernet cables to each coverage unit for retransmission through one or more service antennae.

    The coverage unit can either deliver the signal directly with the included Cel-fi blade antenna, or passively distribute to up to 10 Cel-Fi low profile omni antennas. Additionally, the Cel-Fi QUATRA 4000 range extender is a power over ethernet device that extends the maximum distance between the Cel-Fi QUATRA network unit and the coverage unit, up to 200 meters.

    Cel-Fi QUATRA 4000 Key features.

    Cel-Fi QUATRA 4000 is based on the award winning carrier grade technology with Intelliboost chipset at the core, and the Cel-Fi wave remote management platform. Key features include a multi-carrier active DAS hybrid solution providing industry leading coverage with up to 100 decibels of max gain. It is a scalable solution for up to 75,000 ft. squared per network unit, super cell or off air modes.

    It is an all digital solution that is network safe, and carrier approved. Cel-Fi QUATRA 4000 is a powerful cellular signal distribution solution. Learn why operators, building owners and integrators choose Cel-Fi to get the best cellular coverage possible. Contact authorized Cel-Fi integrator, for more details or submit installation questionnaire to get started.


    Customer Reviews

    Questions & Answers


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    • How does the QUATRA 4000i work?

      Cel-Fi QUATRA 4000i is a powerful cellular signal distribution solution. It is fundamentally comprised of a Network Unit (NU) and up to six (6) Coverage Units (per NU).

      The Network Unit takes the donor input from up to four (4) carrier signal sources. The signal source can be off-air (over-the-air (OTA)) from the macro network, or delivered via a small cell. Each port is carrier specific and can be either off-air or small cell driven.

      The NU receives the source signal, digitizes the RF, and distributes it over two Category (Cat5e) cables (per CU) to the CU. The CU converts the digital signal back to RF, boosts it, and transmits from its RF port to provide cellular coverage at the location.

    • Can I use the QUATRA 4000 system outdoors?

      Cel-Fi QUATRA 4000 is for indoor use only and it should not be used outdoors.

    • What is the difference between the QUATRA 4000 and the QUATRA 4000i?

      There are two variants available for the Cel-Fi QUATRA 4000:

      Cel-Fi QUATRA 4000: The QUATRA 4000 is FCC Part 20 certified. It supports bands 2,4,5,12,13, 25.

      Cel-Fi QUATRA 4000i: The QUATRA 4000i is FCC Part 90 certified. It supports bands 2,4,5,12,13, 25, 26, 30, 41, and 71.

    • Is the QUATRA the only system that can cover four carrier signal sources?

      No, practically all other systems offer all carrier network boost simultaneously, if you're considering Over The Air (OTA) signal input. Yes, with only a Carrier feed line, the QUATRA 4000 system is the only system offered that boosts 4 carriers simultaneously. This commercial and military grade system is typically used for applications requiring signal booster over very large spaces.

    • Please provide price quotes for carrier grade cell phone booster systems.

      Thank you for requesting Carrier-grade indoor cellular coverage improvement system and installation.

      Cel-Fi QUATRA is a Carrier Grade Cell Phone Booster System that we recommend, but we need detailed building information so we can prepare quote that would include equipment, installation service, and all required approvals from Authority Having Jurisdiction (AHJ).

      Please submit questionnaire at link below so we can help you further:

      Or please call 1-855-846-2654 to speak to a representative.

      Thank you, we look forward to resolving weak cell coverage in your building, for good!

    • Can you please quote me on a Nextivity Cel-Fi QUATRA 4000i (Part 90)?

      Please submit installation questionnaire so we can assist you further. We require those basic details in order to prepare a custom design that will meet your needs. For exact cost estimate, we need to visit the building for site survey to check current connectivity situation to determine the best and most cost efficient design that will help you with a permanent indoor connectivity solution. Thank you.

    • Can Cel-Fi Quatra 4000i improve 5G T-Mobile Band 71?

      Yes, it can improve 5G T-Mobile Band 71. Please note this product requires FCC registration and a retransmission agreement because it falls under industrial signal booster classification.

      Here are all possible Cel-Fi Quatra 4000i FCC Part 90 signal booster configurations:

      AT&T Configuration:

      Bands: 12 and 5, 12 and 25, 12 and 4, 12 and 2, 30 and 5, 30 and 25, 30 and 4, 30 and 2.

      Sprint Configurations:

      Bands: 5 and 25, 5 and 2, 26 and 25, 26 and 2, 41 and 26, 41 and 25, 41 and 2, 41 and 5.

      T-Mobile Configurations:

      Bands: 25 and 4, 25 and 12, 4 and 12, 4 and 71, 25 and 71, 2 and 4, 2 and 12, 2 and 71.

      Verizon Configurations:

      Bands: 13 and 25, 13 and 4, 13 and 2.

      All Bands Supported:

      2, 4, 5, 12, 13, 25, 26, 30, 41, 71.

      Please contact us for professional installation service which would include getting all required approvals necessary to use this high power industrial grade cellular booster kit.

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    Note: For any signal booster to help, outside signal strength must be at least -110 dB or there must be a clear line of sight to a cell tower that is within twenty miles. Before ordering, please check outside signal level in decibels or ensure that you can make and hold a phone call at any good spot outside where you can mount an exterior antenna. Square footage stated in signal booster listings is based on good signal outside. If it is any weaker, the boosted sq. ft. area will be considerably lower, accordingly.

    Kevin K. of Anderson, California gave the following review:

    Website is easy to use with plain straight forward info but could have had more on testing signal strength to make sure you get a strong enough booster.

    Therefore, please note that stated sq. ft. coverage is based on good signal outside. For best results: If outside signal is weak, we suggest choosing the next higher sq. ft. coverage kit. If outside signal is very weak, we suggest choosing the kit with even more higher sq. ft. range bracket. Basically, higher the sq. ft. bracket, the more powerful the signal amplifier with greater Gain as well as higher uplink and downlink output power.

    If outside signal is too weak (weaker than -110 dB), submit request for cell coverage solution assessment. Upon receipt of questionnaire, we will perform residential or business site survey. This will help us determine the system that is needed to improve cell coverage. Then, we will create system design using that system such as femtocell, active or hybrid distributed antenna system (DAS), or other carrier feed signal enhancing method available that will work at your signal-challenged location. Finally, we will schedule for installation after equipment and installation service quote has been approved by you, or your company.

    For non installation-included kits: Most home / office / building cell signal booster kits only include bracket to mount exterior antenna on outside wall, edge of roof, or existing pipe up to 2 inches in diameter. Mounting pole not included with most kits, unless stated specifically that it is included for free. Therefore, a mounting post must be purchased separately if you will require it to mount exterior antenna.

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