The X factor

Jacobsmeyer, Jay
September 2010
Urgent Communications;Sep2010, Vol. 28 Issue 9, p28
Trade Publication
The article summarizes the requirements in the U.S. National Fire Protection Association (NFPA) Fire Code known as Annex O on public-safety radio enhancement systems (RES). RES are required to operate without interference to other parts of the radio system. Critical building areas, such as exit stairs and passageways, are required to have radio coverage of 99% while general areas must have 90% coverage. System components are subject for approval by the Federal Communications Commission (FCC) and must be operated in accordance with its rules.


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