Instruction Manual

7.4
Minimizing the Effect of Poorly Grounded Antennas
For vehicles with high power radios that use glass mount antennas, keep the radio and antenna cable
as far as possible from the radiating element of the antenna. If a sufficient distance is not maintained,
the lack of a proper ground plane from the glass mount antenna may cause the radio transmit signal to
interfere with itself and cause a reset. To minimize this effect, it may be necessary to install ferrite
beads on the antenna cable to protect the radio from this interference.
7.5
Jump-Starting the Vehicle
Prerequisites:
CAUTION: Do not jump-start vehicles with radio power or ignition sense cables connected.
Damage to the radio and/or accessories may result.
Jump-starting a vehicle can crank 300+ volts through the vehicle charging system and these transients
can damage electrical equipment.
The state of your radio before it needs a jump-start may be unknown, and the radio may attempt to
return to its last state (radio ON), when doing a jump-start. Therefore, carry out the following procedure
before jump-starting any vehicle containing a radio.
Procedure:
1 Locate the ignition sense line (thin yellow wire or thin red wire, depending on dash mount or
remote mount installation) and the main power leads (thick red wire) near the battery positive
terminal.
NOTICE:
These lines are fused. In the event these lines are not fused (add the appropriate fuse in
line), use whatever tools necessary to physically disconnect the ignition sense and power
lines from the battery terminal.
Ensure that the disconnected lines are not in the way of moving motorcycle parts or
interfering with the motorcycle operation in any way.
2 Open up the fuse holders and remove the fuses out of the kits.
3 Re-tighten the fuse holders but without the fuses to ensure that ignition sense and power lines
do not interfere with moving motorcycle parts.
4 Proceed with the jump-start routine as described in the manual of your vehicle.
5 Once the jump-start process is complete, re-install the fuses into their holders.
7.6
Eliminating Noise/Howling from PA Speaker
• Refer to Installation Examples on page 32 for the recommended methods of installation available
for the mobile two-way radio, with accessories placed to the vehicle as desired.
• Refer to Figure 38: Radio Installation of O9 Remote Mount with Transceiver (URC is optional) on
page 39 and Figure 39: Radio Installation (O9 Remote Mount with Pinouts) on page 40 for the
wiring diagrams for the recommended configurations.
• Refer to the Siren/PA User Manual for further details on lowering the wattage.
MN005720A01-AB
Chapter 7: Best Practices: Installation and Troubleshooting
131