Wireless Cb Microphone Installation (Optional); Connecting The Power Cords; Ground Information - Uniden Bearcat PC687 Owner's Manual

quality of your antenna is very important. To achieve the maximum
transmission distance, Uniden strongly recommends that you install only
a high quality antenna. You have just purchased a superior transceiver -
don't diminish its performance by installing an inferior antenna.
Only a properly matched antenna system will allow maximum power
transfer from the 50 ohm transmission line to the radiating element.
Your Uniden dealer is qualified to help you select the proper antenna for
your requirements. A whip style antenna may be used for automobile
installation.
A short 'loaded' whip antenna is easier to install on an automobile, but its
efficiency is less than that of a full quarter-wave whip antenna.

Wireless CB Microphone Installation (Optional)

Your PC687 is compatible with Uniden's BC906W Wireless CB
Microphone. With a range up to 300 feet, the BC906W allows you to use
your CB to communicate even when you need to get out of your vehicle.
Follow the instructions provided in the BC906W kit to install the wireless
microphone.

Connecting the Power Cords

Uniden recommends connecting the power lead to the Ignition Switch
Accessory Terminal. This way, the transceiver is automatically turned off
when the ignition switch is turned off.
As an alternative, the power cord may be connected to an available
terminal on the fuse block or to a point in the wiring harness. However,
caution must be taken to prevent a short circuit. If in doubt, contact your
vehicle dealer for information.

Ground Information

This transceiver may be installed and used in any 12-volt DC negative
ground system vehicle.
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