ERRCS Design and testing logo and illustration

Combining A Cellular and Public Safety DAS

June 13, 2023

Combining Emergency responder radio coverage systems (ERRCS) and cellular distributed antenna systems (Cell DAS) can offer several benefits to a building owner, provided good engineering practices were used for design and implementation of the system. ERRCS and Cell DAS are…

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ERRCS Design and testing logo and illustration

First Net Interference & ERRCS Systems

August 7, 2022

With the nationwide deployment of AT&T FirstNet LTE in band 14, it is becoming more and more common to have high, interfering signal from AT&T towers into public safety signal boosters. This is based on BDAs being built to cover…

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Basic RF Distribution system diagram

What is an ERRCS System ?

November 29, 2021

An Emergency Responder Radio Communication System, or ERRCS, is an amplification system that receives public safety radio signals from an off-air donor antenna and re-transmits them through in-building service antennas. This system is also commonly known as a BDA system…

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A building and toy cars on a plain background

What is ERRCS Testing ?

November 12, 2021

What is ERRCS Testing? ERRCS Testing, or ERRCS Grid Testing, is a measure of signal strength, or RSSI in a building. The exact signal strength measurements (if required at all) should be spelled out in your local adoption of IFC…

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Innovation and development

Near / Far : Designing for Success

October 28, 2021

The Code IFC 510 has recently been updated to include verbiage on antenna density, which is especially important when it comes to possible near-far issues. The new verbiage is in IFC 510.4.2.8: Radio Communication Antenna Density. It states systems shall…

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ERRCS Design & Testing

What is Signal Strength Testing

October 20, 2021

IFC Section 510.5.3 defines exactly what is required for acceptance testing of a building, and can be used to determine whether a building passes or fails a benchmark test. Each floor of the building must be divided into a grid…

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