Operating instructions

BK RADIO Page 2-1
SECTION II
INSTALLATION AND PROGRAMMING
2.1 GENERAL INFORMATION
This section contains information concerning the installation and programming of the BK
Radio DMH APCO Project 25 digital radios.
2.1.1 UNPACKING AND INSPECTING EQUIPMENT
Exercise extreme care when unpacking the equipment. Make a visual inspection of the unit
for evidence of damage incurred during shipment. If a claim for damage is to be made, save
the shipping container to substantiate the claim. The claim should be promptly filed with the
transportation company. It would be advisable to retain the container and packaging material
after all equipment has been removed in the event that equipment storage or reshipment
should become necessary.
2.1.2 INSTALLATION
Plan your installation carefully. Locate the radio and microphone within easy reach, giving the
operator a clear view of the display. Do not locate the radio or microphone in a position that
interferes with safe operation of the vehicle.
Once the equipment location is chosen, determine the best routing for cables and wires to
connect the system. Use a rubber grommet to protect the wires when passing through sheet
metal. Avoid any route that subjects the wire to pinching, cutting, or high heat from the engine
or other vehicle component.
Dash Mount
The radio must be used with a 12 volt, NEGATIVE GROUND electrical system. Refer to
Figure 2-1.
1. Crimp a fuse holder in line with the red power lead as close to the battery as possible.
2. Connect the red power lead to the vehicle battery POSITIVE terminal. Using other
positive voltage points in the vehicle is not recommended.
3. Connect the black lead to a good ground point on the vehicle chassis. Connection to the
negative battery terminal is not recommended.
4. Crimp a fuse holder in line with the yellow ignition wire.
5. Connect the yellow ignition lead to an ignition switch source. If the radio needs to be
always powered, connect the yellow lead to the red power lead.
6. Mount the antenna carefully. Follow the instructions supplied with the antenna kit. Route
the coax cable to the radio mounting location.
7. Fasten the radio mounting bracket securely to the desired location.