Cellular DaS SOLUTIONS
Small Cell passive das solutions can solve cellular coverage issues quickly and cost effectively
Cellular Das solutions
Building owners, property managers, and enterprise customers have a number of options when there’s a cellular coverage problem. Traditionally so-called Active Distributed Antenna Systems (DAS) were the only alternative for many customers. These systems are expensive and take months to deploy, although for customers with capacity issues (think football stadium) it is the preferred solution.
For most customers, a Passive DAS fed by either an over-the-air donor antenna or a “Small Cell” from each carrier is a much more cost-effective and simple solution to deploy.
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Education Center
NFPA 1225-2027 Makes Near-Far a Performance Requirement
A building's emergency responder communications system can meet 99% coverage in critical areas and 95% everywhere else, pass every individual radio test at commissioning, and still drop a firefighter's transmission at the worst possible moment. The cause is the...
NFPA 1225-2027: Major ERCES Changes to Watch
An overview of the new edition and what it could mean for California IBWS has reviewed the 2027 edition of NFPA 1225 against the 2022 edition, with particular attention to Chapter 18, In-Building Emergency Responder Communications Enhancement Systems, and the ERCES...
Two New IBWS Reference Guides: Cellular DAS and California ERCES
In-building wireless keeps getting more complicated, and the line between "nice to have" and "required by code" isn't always obvious. To help, IBWS has published two new 2026 reference guides. The short version: ERCES is usually about code compliance, while Cellular...
IBWS CALIFORNIA ERCES JURISDICTION GUIDE 2026
Top 25 California Jurisdictions / Markets - ERCES Document Links, Codes, and Practical Notes ERCES requirements in California can vary significantly from one jurisdiction to another. While many jurisdictions adopt the California Fire Code and NFPA 1225, local...
The Building Is Lying To You: Why Many Modern California Buildings Quietly Undermine Emergency Communications
Modern California buildings are extraordinary. They can optimize HVAC systems automatically, dim lighting based on occupancy, monitor water consumption in real time, and track energy efficiency down to individual zones. Glass tint changes with sunlight. Elevators...
Why California ERCES Projects Keep Failing Inspection — and How to Fix That
Every year, ERCES projects across California stall, fail re-inspections, or incur costly rework — not because contractors lack their craft, but because California's compliance landscape is uniquely fragmented. If your projects are encountering unexpected roadblocks at...
Does Your Building Actually Need 5G?
The real question isn’t about speed — it’s whether your building is designed for how carriers operate today. The short answer is yes — but probably not for the reason you’re thinking. When building owners, developers, and contractors ask whether they “need 5G,” they...
Cellular DAS in 2026: Technical Considerations for Modern In‑Building Wireless Systems
Indoor cellular coverage has become more complicated despite the ongoing growth of nationwide 5G networks. The idea that simply increasing carrier density solves indoor coverage problems is no longer accurate. Modern building construction methods, changing spectrum...
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