System Command, Code 08H at (202) 692-7523.
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Provide radio alarm transmitters completely assembled, tested at the
factory, and delivered ready for installation and operation. The
transmitter electronics package shall be contained within the housing as a
complete assembly, removable to facilitate servicing and replacement.
Transmitters shall operate on any frequency within the [138-150.8 or
162-174 MHz] [406-420 MHz] [ ___ ] band and shall be operable within a 12.5
KHz channel. The specific frequency shall be [_____ MHz] [as directed by
the Contracting Officer, within [90] [__] days following submission of
If 2-way transmitter/receivers are provided to fulfill the requirements as
specified herein for radio alarm transmitters, they shall transmit and
receive on separate frequencies. The second frequency will be as assigned
within [90] [__ ] days following submission of completed application for
2.1.1
Transmitter Identity Code
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NOTE: For NORTHNAVFACENGCOM and PACNAVFACENGCOMHQ
MIDPAC projects, delete the bracketed text in the
third sentence and include the bracketed text in the
fourth and fifth sentences.
For projects in other
areas, consult the EFD/EFA Fire Protection Engineer
having jurisdiction. It is generally desirable to
of the connected or nearest building where this can
be done without undue difficulty.
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Provide transmitters which include a unique identity code as part of each
transmission. Setting the code shall be readily accomplishable in the
field without the need to exchange or alter circuit boards. [The specific
code number for each transmitter shall be as shown on the contract
drawings.] [Submit in writing, within 30 calendar days after award, the
proposed specific code number for each transmitter.] [Obtain the code
numbers from the Federal Fire Department serving the facility.]
2.1.2
Environmental Operating Requirements
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NOTE: Choose the temperature range most appropriate
for the local climate. Avoid specifying minus 40
degrees C unless necessary, as this may add
significantly to the cost of the system (special
order item from some manufacturers). For areas
where lower temperatures can be anticipated, show
transmitters indoors, with antennas outdoors.
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Transmitters not installed within climate-controlled spaces shall be
designed for reliable operation in an ambient temperature range of[ minus
30 degrees C to plus 60 degrees C (minus 22 degrees F to plus 140 degrees
F)][ minus 40 degrees C to plus 60 degrees C (minus 40 degrees F to plus
140 degrees F)] and under adverse climatic conditions including[ 161][ 242]
km/h[ 100][ 150] mph winds, high humidity, rain, ice, and snow storms.
SECTION 13853N
Page 14