KKK-A-1822 E
3.14
COMMUNICATIONS.
3.14.1 COMMUNICATION EQUIPMENT.
The ambulance and console(s) shall be configured for two-way radio(s) (mobile and portable),
intercom, public address, electronic siren, and telemetry system(s). These systems, when specified
(see 6.2-qq), herein or purchaser furnished/specified shall be installed and ready to use. Switches
and controls shall be panel mounted and conform to 3.7.9 thru 3.7.11. Communications equipment
shall meet the applicable FCC rules and required state and local area EMS radio communications.
3.14.2 RADIO (MOBILE) PROVISIONS.
All ambulances shall be provided with sufficient ventilated space for a two-way radio
(including convenience features), antenna openings, ground plane, terminal wiring for 12V
power and ground, and mounting panels (see 3.14.3) required for the installation and
servicing of mobile radios. Unless otherwise specified (see 6.2-qq), the consignee will locally
install mobile radio unit(s) or shall provide any additional data, equipment and a coordinator to
insure compatibility of specified systems.
3.14.3
ANTENNA, CABLE, AND MOUNTING.
The contractor shall provide each ambulance with a ground plane, antenna opening, and
coaxial lead-in wire from the ventilated radio storage area/compartment to a temporarily
sealed antenna port. The antenna and/or mounting shall be on the centerline of the patient
compartment roof. An antenna port shall be provided in the patient's compartment directly
under the mounting area. The port shall provide at least a 10 cm x 10 cm (4" x 4") opening,
and be marked as specified in 3.7.11. All nonmetallic roofs shall be equipped with at least
a 102 cm x 102 cm (40" x 40") metal ground plane molded into the roof (see 3.10.6). A
conduit and fish lead shall be provided when necessary to fish the cable from the antenna to
the radio. Unless otherwise specified (see 6.2-qq), the antenna cable (lead-in) shall be a
labeled, RG/58U or equal. Approximately 46 cm (18") of extra cable shall be provided at
the antenna base (port) and at least 91 cm (3 feet) at/in the radio compartment provided
with a PL-259 connector soldered to the end of the cable. Purchaser shall specify any
changes or additional requirements.
3.14.4
TWO-WAY (MOBILE) RADIO EQUIPMENT.
When specified (see 6.2-qq), a solid state, mobile, two-way radio, meeting all purchaser
requirements, shall be furnished. The transmitter power output shall be as specified.
3.14.5
INTERCOM SYSTEM.
When specified (3.15.3-4), solid state intercom equipment shall be provided between the
driver and patient compartments. The driver shall have the capability to place the patient
compartment in standby "talk" mode and to control any necessary talk/listen switching. The
intercom system shall be independent of the two-way radio equipment. Cab compartment
intercom shall be mounted in accordance with 3.7.9 and patient compartment intercom in
accordance with 3.7.10, and comply to 3.7.11.
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