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Why buildings kill cellular signal
Modern buildings — energy-efficient glass, concrete, and metal — are great for insulation and terrible for cellular signal. A Distributed Antenna System (DAS) or signal booster fixes indoor dead zones.
How it works
- Donor antenna — mounted outside, captures the carrier signal.
- BDA / booster — amplifies the signal (bi-directional).
- Distribution — splitters and cabling carry it inside.
- Indoor antennas — re-broadcast coverage where people work.
Booster vs. full DAS
| Solution | Best for |
|---|---|
| Passive booster | Small offices, single-carrier, modest gaps. |
| Multi-carrier DAS | Large facilities, multiple carriers, high capacity. |
Validation isn't optional
A DAS must be tuned and proven. IDENETY validates with RSRP, RSRQ, and SINR measurements, sweep testing, and a per-carrier commissioning report — the same rigor required for public-safety systems.
Public safety: many jurisdictions require Emergency Responder Radio Coverage (ERRCS/BDA) for first responders. See our dedicated ERRCS compliance guide.
IDENETY designs and installs DAS and cellular booster systems for commercial, healthcare, education, and government facilities nationwide. Contact us to discuss your coverage challenge.