Setting Up The Radio; Connecting The Antenna; Connecting Power; Installation - Uniden UM525 Owner's Manual

UM525 Paper OM.fm Page 15 Tuesday, January 4, 2005 2:54 PM

Setting Up the Radio

Connecting the Antenna

Your UM-525 has been designed to accommodate all of the popular marine VHF
antennas. However, the selection and the installation of the antenna is the
responsibility of the user or installer. A variety of antennas are available from a
number of quality suppliers. In general, we recommend an 8' antenna rated at 6dB
for powerboats, and a 4' antenna rated at 3dB for sailboats.
In general, you can increase your communication range by using a high-gain
antenna placed as high as possible above the water line. Locate the antenna away
from metal objects. Keep coax feed cables as short as practical.
The FCC has determined that excessive radiation poses a health risk to people near
radio transmitting antennas. Therefore, the antenna used with this radio should be
installed using the following guidelines to ensure a suitable distance between the
antenna and persons close by.
• Small whip antennas (3 dB) or smaller should be installed keeping at least 3 feet
separation distance between the radiating element and people.
• Larger antennas (6 dB or 9 dB) should be installed keeping at least a 6 feet sep-
aration distance.
• No person should touch the antenna or come closer than the separation dis-
tance when the radio is transmitting.
To connect the antenna to the radio, screw its connector onto the antenna jack on
the back of the radio.

Connecting Power

1. Connect the red wire of the supplied power cord to the positive (+) side of your
distribution circuit or battery.
2. Connect the black wire of the supplied power cord to the negative (-) side of your
distribution circuit or battery.
Note: The power cord is equipped with a fuse to protect the radio. Use only a six
(6) amp fast blow fuse for replacement.
3. Connect the power cord to the keyed connector on the power "pigtail".

Installation

Caution: The UM-525 is designed to use a nominal 13.8 volt negative ground battery
system for power. Do not use a positive ground battery system to power the UM-525.
Setting Up the Radio
Setting Up the Radio
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