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Radio Enhancement Systems


Littleton Digital technicians are FCC Licensed to operate, install, and maintain your radio communications systems. We offer specific services for Public Safety BDA/DAS


• RF Site Survey - Littleton Digital will walk your building to fire code specifications and determine whether a RES Public Safety System would need to be installed at your location.

• Annual Testing - We provide annual testing on a uniform grid using the pass/fail criteria, taking signal-strength measurements with a spectrum analyzer and test receiver to collect the most accurate RF information.

• System Installation - If it is determined your building will need a BDS/DAS RF system installed, Littleton Digital can provide system options for system design, permitting, purchasing, testing and maintenance.

• Service & Repair - Littleton Digital provides service contracts for emergency repair and maintenance. The response time shall be no less than two hours providing you with 24 hr. support and peace of mind.


Public Safety DAS/BDA

Recommendation 22. NIST recommends the installation, inspection and testing of emergency communications systems, radio communications and associated operating protocols to ensure that the systems and protocols:

Are effective for large-scale emergencies in buildings with challenging radio frequency propagation environments; and Can be used to identify, locate and track emergency responders within indoor building environments and in the field.

Section 510 of the International Fire Code (IFC), which is part of the International Building Code Annex O to the National Fire Protection Association (NFPA) Fire Code, aka NFPA 1 Section 510 of the IFC.

Annex O offers specific recommendations for performance, testing and monitoring of the radio enhancement system. While Annex O to NFPA 1 uses the term "radio enhancement system," or RES, such a system is better known in the industry as a bidirectional amplifier (BDA) system or a distributed antenna system (DAS).