DAS & In-Building Coverage

What it is

• Active and passive DAS design for hospitals, high-rises, manufacturing facilities, parking structures, and venues.
• Public-safety DAS (ERRCS / BDA) designed against the local AHJ's interpretation of NFPA 72 / IFC §510 — not the generic spec sheet.
• Carrier signal-source negotiation, MOU/lease facilitation, and headend co-location strategy.

When you need it

• A building does not pass public-safety radio coverage testing and the AHJ has flagged occupancy.
• Carrier coverage inside the building has measurably degraded after a renovation, façade replacement, or Low-E retrofit.
• A new build needs in-building cellular and public-safety radio designed in before MEP rough-in.

Our methodology

1. 01Baseline survey. Walk-test against all relevant carriers and public-safety bands. We document where you're failing, not just where coverage is weak.
2. 02AHJ alignment. We meet with the AHJ before design, not after. We confirm exactly which floors, stairs, elevators, and refuge areas need to pass.
3. 03Design package. Headend, BDA/repeater, fiber and coax runs, antenna placement, link budget, and AHJ submittal documentation.
4. 04Carrier signal source. We open the conversation with the carriers (or escalate when they don't answer) and document MOU terms before installation begins.
5. 05Commissioning. Witnessed AHJ acceptance testing, with grid measurements and pass/fail documentation that becomes part of the building's records.

Typical deliverables

• Baseline coverage report with carrier and public-safety bands
• AHJ-aligned design submittal package
• Signal source MOUs and headend specifications
• Cable schedule, antenna schedule, and link budgets
• Commissioning report and AHJ sign-off documentation

Representative outcomes