In-building public safety radio coverage systems (ERCES/BDA) designed to meet IFC requirements and pass AHJ acceptance testing — installed across the Southeast US.
Every commercial building over a certain size or occupancy type must demonstrate adequate first responder radio coverage under IFC and local AHJ requirements. When the building's construction attenuates radio signals below the required threshold, an Emergency Responder Communication Enhancement System (ERCES) — also called a BDA or public safety DAS — is required. JB Technologies is a Shield ERCES-certified installer and designs systems to pass AHJ acceptance testing the first time.
We conduct an RF survey to measure the signal level available from the nearest public safety tower, then specify the appropriate donor antenna type, placement, and mounting height to maximize captured signal before amplification.
We specify and install UL 2524-listed bi-directional amplifiers sized for the building's frequency bands, square footage, and construction type. BDA output power is calculated to meet the required signal levels throughout the building.
We design the intra-building radiating infrastructure — coaxial cable, splitters, taps, and omni-directional antennas placed to achieve the required -95 dBm signal coverage in all areas, including stairwells, elevators, and below-grade spaces.
ERCES systems require minimum 24-hour battery backup. We install appropriately sized UPS systems and configure SNMP or dedicated monitoring to alert the building's monitoring service on system fault or battery degradation.
ERCES requirements vary by construction type, occupancy, and local AHJ. JB Technologies has designed systems for a wide range of commercial and institutional buildings across the Southeast.
Multi-story office buildings where structural steel, concrete, and low-e glass attenuate public safety signals below IFC thresholds.
Hospitals and medical campuses with large floor plates, shielded rooms, and underground parking requiring full-building coverage in all zones.
Universities, K-12 campuses, and large academic buildings where concrete construction or campus layout blocks reliable radio coverage.
Large-footprint warehouse and distribution center buildings where metal construction and square footage create radio coverage dead zones.
Below-grade and above-grade parking structures are among the most common ERCES trigger conditions — coverage must extend to all levels.
High-rise and mid-rise residential buildings where construction type and floor count trigger ERCES requirements under IFC and local amendments.
Pre-design RF survey to measure available signal levels and predict in-building coverage before any equipment is specified.
JB Technologies is a Shield ERCES-certified installer — trained and authorized for Shield-platform ERCES systems.
We specify only UL 2524-listed BDA equipment meeting the current IFC requirements for public safety radio amplifier listings.
We coordinate with the local fire marshal and AHJ throughout design and installation to ensure the system passes acceptance testing without costly re-work.
All ERCES systems include properly sized battery backup systems to meet the IFC 24-hour minimum standby requirement.
ERCES systems require annual AHJ inspection. We offer post-installation inspection support and system recertification services.
Every ERCES system is designed to meet IFC, NFPA, and local AHJ requirements for public safety radio coverage.
International Fire Code requirements for emergency responder radio coverage — the primary code standard governing ERCES system design and acceptance testing.
Standard for the Installation, Maintenance, and Use of Emergency Services Communications Systems — supplemental ERCES design and battery backup requirements.
Standard for In-Building 2-Way Emergency Radio Communication Enhancement Systems — the equipment listing standard for compliant BDA units.
Permit requirement, AHJ citation, or new construction — we'll survey the building and design a system that passes inspection.
Get a Quote