Uniden PRESIDENT LTD 950 User manual

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byUniden
LTD 950
VHF Marine Radio
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OPERATING GUIDE
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TABLE OF CONTENTS
PRESIDENT LTD 950 1
Installation 2
Choosing A Location 2
EngineNoiseSuppression "3
Antenna Considerations 3
Installingthe LTD 950 3
Controls And Indicators 4
Front Panel Controls 4
Front Panel Indicators 5
Tri-Function Keys 7
Rear Panel Connectors 9
Operation 10
Dual Watch 10
Manual Tuning 10
Instant Channel 16 Communications 10
Timed Scan (SEEK) 11
Normal Scan (SCAN) ;11
Weather Scan 12
US/International Channels 12
Fish Channels 12
Telephone Channels 13
USCG Channels 13
ENT (Entering channel numbers into Memory Scan) 13
Mem0ry Scan 13
Public Address 13
Weather Alert 14
Transmitting 14
Dimming the LCD Display Backlight andthe TX Indicator 15
Optional Accessories 15
Channels And Functions (Tables) 16
Specifications 18
Maritime Radio Services Operation 19
Care And Maintenance , 20
Se rvice.. .......................... .................. .......... ................... .....................................21
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PRESIDENT LTD 950
The PRESIDENT LTD 950 VHF marine radio transceiver has been
designed to give you a rugged, reliable instrument that will provide you
with years of trouble-free service.
Withproper care and maintenance, your PRESIDENT LTD 950 will
outlast your present vessel and serve you well on-board several more.
The fullfeatures and flexibilitydesigned intothis qualitytransceiver will
prevent it from becoming obsoleteregardlessof changesin craftor
geographic locations.
The technical excellence of the PRESIDENT LTD950 is demonstrated
bythe multiplicityof uses forwhich ithas been found acceptable by the
U.S. Federal Communications Commission. The PRESIDENT LTD 950
is acceptable for compulsory use on "party boats," for use on vessels
subject to the Great Lakes Radio Agreement or bridge-to-bridge require-
ments, for general pleasure and commercial vessels, and certain land
stations inmarine service.
ThePRESIDENTLTD950 isofallsolidstatedesignwithconservatively
rated rugged components and materialscompatible withthe marine
environment. The transceiver utilizesa number of gaskets, sealing rings,
waterproof membranes, and other sealants to effect a splashproof
housing for protection ofthe electronics. The unit may be mounted in
any number ofconvenient locations on your vessel by utilizingthe
universal mountingbracket.
You are encouraged to thoroughlyread the rest ofthis Operating Guide
to acquaint yourselfwiththe characteristics and operation of yourtrans-
ceiver so that you can contributeto the longevityof your investment.
Se sure to complete the Product RegistrationCard at the back ofthis
Guide, cut itout and mail it. You also need to complete the enclosed
Warranty Registration Card and mail it.
Keep your receipt as proof-of-purchase in case warranty service is
required.
PRESIDENT is atrademark of UnidenAmerica Corporation.
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INSTAllATION
CAUTION: TheLTD 950 willoperate only withnominal 12 voltnegative
ground battery systems.
It is importantto carefully determine the most suitable locationfor your
LTD 950 on your vessel. Electrical,mechanical, and environmental
considerations must all be taken into account. You must selectthe
optimum relationship among these considerations.
Keep in mind the flexibility designed into the LTD 950 sothat you can
most conveniently use your radio. Featureswhich should be considered
are:
1. The universal mounting bracket may be installedon either the top or
bottom of a shelf, on a bulkhead, or for overhead mounting.
2. The REMOTE speaker jack can be usedwith an auxiliary speaker.
3. All connections are "plug-in"type for easy removal of the radio.
4. Front fire internal speaker allows convenient in-dash mounting using
the optional bracket.
CHOOSING A LOCATION
Some important factors to consider in selectingthe locationfor your
LTD 950:
1. Select a locationthat is free from spray and splash.
2. Keepthe battery leads as short as possible. Direct connection to the
battery is mostdesirable. If direct connection cannot be made with
the supplied power lead, any extension should be madewith #10
AWG wire. Long extensions should use larger gauge wire.
3. Keep the antenna lead as short as possible. Long antenna leadscan
cause substantial lossof performance for both receiving and transmit-
ting.
4. Locate your antenna as high as possible and clear from metal objects.
The reliable range of coverage isa direct function of antenna height.
5. Select a locationthat does not allowthe radioto be subjected to direct
sunlight (including that coming through windows).
6. Select a locationthat allowsfree air flow around the heat sink on the
rear of the radio.
7. Select a location well away from the ship's compass. Auxiliary
speakers also should be located awayfrom the compass.
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ENGINE NOISE SUPPRESSION
Interferencefrom the impulse noisegenerated by the electrical systems
of engines issometimes a problem with radios. The LTD 950 has been
designed to be essentially imperviousto ignition impulse noise and
alternator noise. However, in some installations it may be necessaryto
take measuresto further reducethe effect of noise interference. All DC
batterywires, antenna lead, and accessorycables should be routed
awayfrom the engine and engine compartment, andfrom power cabling
carrying particularly high currents.
In severe cases of impulse noise interference, it may be necessaryto
install a noise suppression kit. Contactyour PRESIDENT Dealerfor
more information.
ANTENNA CONSIDERATIONS
A variety of antennas is available from a number of quality suppliers. Itis
recommended you draw uponthe advice of your PRESIDENT Dealer in
determining a suitable antenna for your vessel and range requirements.
Ingeneral, communication range is increasedby using a high-gain
antenna placed as high as possible above thewater line. Antennas
should be located away from metal objects. Antennas should not have
excessively longcoaxial feed cables.
INSTAlliNG THE lTD 950
After you have carefully considered the various factors affecting your
choice of location, position the radio (withthe bracket, microphone,
power cord, antenna and any auxiliary cables installed) into the selected
location to assure there is no interferencewith the surrounding items.
Markthe location of the mountingbracket. Removethe bracket from the
radio and use it as a template to mark the holesto be drilled for the
mounting hardware. Drill the holesand mount the bracket with hardware
compatible with the materialof the mounting surface.
Connect the redwire of the supplied power cord to the positive (+)
battery supply. Connect the black wire of the power cord to ground. The
power cord is equipped with a fuse to protect the radio. Use only a Six
(6) AMPERE fast blow fuse for replacement. Connectthe power cord to
the keyed connector on the power "pigtail" (Seepage 6).
Connect the antenna and all other auxiliary cables.
Install the radio in the mounting bracket and connect all cables and
accessoriesto the appropriate jacks and connectors.
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