Authorized installer
We deploy industry-leading DAS / ERCES systems
Tap a manufacturer below to see what we deploy and how we engage on each platform.
In-building cellular and wireless coverage solutions — passive and active DAS designed and installed for commercial buildings and campuses nationwide.
Tap a manufacturer below to see what we deploy and how we engage on each platform.
Modern commercial buildings attenuate outdoor cellular signals with energy-efficient glass, concrete, and metal construction — leaving occupants with dropped calls, failed video conferences, and unusable mobile data inside the building. A Distributed Antenna System (DAS) solves this by distributing cellular signal from an outside source throughout the interior, regardless of construction type or building depth. JB Technologies designs passive and active DAS systems and installs Nextivity CEL-FI solutions for commercial facilities nationwide.
Passive DAS systems using a donor antenna, splitters, coaxial cable, and omni-directional indoor antennas to distribute existing cellular signal through the building. Ideal for single-carrier applications and buildings with adequate outdoor signal at the donor antenna.
Active DAS systems using master units, remote radio heads, and fiber or CAT6 cable for large buildings and campuses requiring multi-carrier support or long cable runs where passive loss budgets are exceeded.
JB Technologies is a Nextivity CEL-FI certified installer. CEL-FI smart signal boosters are a carrier-approved, FCC Part 20-compliant solution for commercial cellular coverage enhancement without requiring a carrier agreement.
We design systems that support all major US carriers simultaneously — so building occupants on any network get the same improved coverage without multiple competing systems.
DAS requirements and the appropriate system architecture depend on building size, construction type, and occupancy. JB Technologies has designed and installed systems across a range of facility types.
Mid-rise and high-rise office buildings where low-e glass and structural concrete block outdoor cellular signal from reaching interior workspaces.
Hospitals and medical campuses where reliable cellular coverage is required for staff communications, BYOD devices, and patient experience.
University and K-12 buildings where thick masonry construction and large floor plates result in cellular dead zones in classrooms and corridors.
Large-footprint warehouse and distribution center buildings where metal construction creates signal dead zones across the interior.
Mid-rise and high-rise residential buildings where construction attenuates outdoor signal — a growing resident satisfaction issue as cellular replaces landlines.
Stadiums, arenas, and convention centers where high user density exceeds the capacity of outdoor macro cell sites.
Pre-design RF survey to measure in-building signal levels, identify dead zones, and model path loss before any equipment is specified.
JB Technologies is a Nextivity-certified CEL-FI installer for carrier-approved commercial cellular enhancement without carrier agreements.
We design both passive coax-based and active fiber/CAT6-based systems — recommending the appropriate architecture for the building size and signal requirements.
System designs that support AT&T, T-Mobile, Verizon, and other carriers simultaneously — ensuring coverage for all building occupants regardless of carrier.
For active DAS systems requiring carrier agreements, we manage the technical coordination process with the carrier's DAS team.
After installation, we conduct a walk test to validate signal levels throughout the coverage area and document results for the building owner.
DAS systems are designed to carrier specifications, FCC regulations, and applicable building codes.
FCC regulations governing in-building cellular signal booster operation, power limits, and carrier notification requirements for active amplifier systems.
Carrier technical specifications for active DAS systems requiring carrier approval and interconnection agreements.
Nextivity certified installer program governing the design, installation, and commissioning of CEL-FI commercial signal booster systems.
Poor in-building cellular coverage costs productivity. We'll survey your building and recommend the right solution.
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