Uniden 810e User Manual
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PRO 81 Oe
Professional CB Base Station
OWNER'S MANUAL
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Welcome!
To the world of sophisticated, microprocessor controlled CB radio communi
cations. Your Uniden PRO 81Oe represents the most advanced base station ever
designed for use in the Citizens Band Radio Service, It will operate on any of the 40
AM, 40 USB, and 40 LSB frequencies authorized by the Department of Com munications. Your PRO 8 ? Oe features a superheterodyne circuit with PHASE LOCKED
LOOP techniques to assure precise frequency control. This radio has been type ac
cepted and certified by the D.O.C.
WARNING
UNIDEN DOESNOTREPRESENTTHEUNITTO HAVE BEEN WATERPROOFED. TO RE
DUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO
RAIN OR MOISTURE.
A A
CAUTION: TO REDUCE
THE RISK OF ELECTRIC
SHOCK, DO NOT REMOVE
COVER (OR BACK). NO US
ER-SERVICEABLE PARTS IN
SIDE. REFER SERVICING TO
QUALIFIED SERVICE PER
SONNEL,
The lightning flash with
arrowhead symbol, within
an equilateral triangle, is in
tended to alert the user to the
presence of uninsulated
"dangerous voltage" within
the product's enclosure that
may be of sufficient magni
tude to constitute a risk of
electric shock to persons.
The exclamation point within
an equilateral triangle is in
tended to alert the userto the
presence of important op
erating and maintenance
(servicing) instructions in the
literature accompanying the
appliance.
Installation
Select a location that is convenient for operation and allows adequate air circula
tion around the unit. Do not place anything directly on top of the radio cabinet
which would block the cooling vents. Avoid areas of high heat. Do not place the
unit on top of radiator vents or in direct sunlight. Do not place the unit in high
moisture environments such as bathrooms.
Antenna
Since the maximum allowable power output of the transceiver is limited by the
D.O.C,, the antenna is a very important factor affecting transmission distance, it is
for this reason that we strongly recommend that you install only a quality antenna
in your new CB radio system. You have purchased a superior quality transceiver
Don't diminish its performance by installing an inferior antenna.
Only a properly matched antenna system will a I low maximum power transfer from
the 50-ohm transmission iine to the radiating element. U/e recommend that you
use an SWI? meter when installingyour antenna. Set your PRO 81 Oe to channel 20
and make adjustments to the antenna until the meter shows $WR = I. Your
Uniden dealer is qualified to assist you in the selection of the proper antenna to
meet your application requirements.
The PRO 81 Oe may be used with any type of 50 ohm base station antenna. A
ground plane vertical antenna will provide the most uniform horizontal coverage.
This type of antenna is best suited for communication with a mobile unit. For
point to point operation where both stations are fixed, a directional beam will
usually increase communication range since this type of antenna concentrates
transmitted energy in one direction. The beam antenna also allows the receiver to
"listen" in only one direction thus reducing interfering signals.
Antenna height Is an important factor when maximum range is desired. Keep the
antenna clear of surrounding structures and foliage, D.O.C. regulations may limit
antenna height above an existing structure.
Connect the male connector (PL-259) of the coaxial cable from the antenna to the
female connector on the back of the unit.
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