Uniden PRO505XL Manual page 40

with either a positive or negative ground. If you don't know whether
your power supply uses a positive or negative ground, consult the
manual for your power supply or contact the manufacturer.
WARNING! DO NOT connect this equipment to a power supply if you
are not absolutely certain of the grounding type!
1) Make sure your power supply is turned off.
2) For power supplies with a NEGATIVE ground, connect the RED
lead on the radio to the power supply's POSITIVE (+) pole, and
connect the BLACK lead to the power supply's NEGATIVE (–) pole
or to a neutral ground such as the chassis.
Turn on your power supply.
3) Turn the radio's Volume knob clockwise to power on the radio.
Installing the mounting bracket
When choosing the location for the radio's mounting bracket, keep the
following things in mind:
► Pick a location that does not block your view, interfere with your
vehicle's controls, or hinder your driving.
► Make sure the radio and microphone are not in front of an airbag.
► Pick a solid surface that can support the bracket and radio weight.
► Make sure there's enough room. (You may want to put the radio in
the bracket when you're choosing where to install the bracket.)
Once you choose the location, use the included, self-tapping screws
to attach the mounting bracket and the microphone bracket to your
vehicle (you don't have to drill holes). Slide the radio into the bracket
and use the included knobs to hold it at the preferred angle.
Connecting an external antenna
WARNING! The antenna used for this radio must be installed at least
16.92 inches (43 cm)
be collocated or used with any other antenna or transmitter.
CAUTION: Never operate your radio with no antenna or with a
damaged antenna cable. This can damage the radio.
You will need to purchase an antenna to operate the radio. There are
two basic types of mobile CB antennas–full-length whips and loaded
whips–with a wide variety of mounts to suit different vehicle locations.
► Choose an antenna that matches the specifications of this radio.
► Follow the manufacturer's installation instructions carefully.
away from all persons. The antenna must not
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