Installation Manual

MN003109A01_aa
Best Practices: Installation & Troubleshooting Minimize the Effect of Poorly Grounded Antennas 7-3
7.4 Minimize the Effect of Poorly Grounded Antennas
• For vehicles with high power radios that use glass mount antennas, care must be taken to
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 glass mount antenna’s lack of a proper
ground plane may cause the radio’s 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-Start the Vehicle
Jump-starting a motorcycle can crank 300+ volts through the vehicle’s charging system and these
transients can damage electrical equipment.
The state of your radio prior to needing 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, Motorola recommends the
following steps be taken before jump-starting any vehicle containing a radio.
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.
NOTE: 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.
Make sure 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 insure that ignition sense and power lines
do not interfere with moving motorcycle parts.
4. Proceed with the jump-start routine as described by your vehicle owner’s manual.
5. Once the jump-start process is complete, re-install the fuses into their holders.
7.6 Eliminate Noise/Howling from PA Speaker
1. Refer to Section 2.1.1 for recommended methods of installation available for the mobile
two-way radio, with accessories placed on or inside the vehicle.
2. Refer to Section 2.1.2 for the wiring diagrams for the recommended configurations.
3. Refer to the Siren/PA User Manual for further details on lowering the wattage.
Do not jump-start vehicle with radio power or ignition sense cables connected.
Damage to the radio and/or accessories may result.
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