Uniden UH-055 Specifications
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Uniden UH-O53 is a 16-channel personal UHF 2-way radio that provides reliable, consistent performance for short-distance 2-way personal communications. It operates in simplex mode on CH 1 to CH 16 or duplex mode on CH 1 to CH8 where repeater service is available. It has a one-watt power output for reliable short-range 2-way communication. The LED message indicators instantly show when the radio is transmitting, the channel is busy, or the battery is low. It has a built-in speaker and microphone, and can be used with an optional remote speaker/microphone for easier communications.
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uniden
@
Sundowner
UH-O53
16-Channel Personal
UHF 2-Way Radio
Operating Manual
Please read carefully before operating this radio.
Safety Information
.
00 NOT operate the transmitter of any radio equipment with the antenna touching, or close to the eyes, face, or exposed body parts.
.
00 NOT operate the transmitter of any radio equipment unless all the Radio Frequency (RF) connectors are secure and any open connectors are properly terminated.
.
00 NOT operate the transmitter of any radio equipment near electrical blasting caps or in an explosiveatmosphere.
.
00 NOT let children operate any transmitterequippedradio equipment.
.
Have your radio equipment serviced by a qualified technician.
Nickel-Cadmium Battery Warning
.
This equipment contains a nickel-cadmium battery.
.
The nickel-cadmium battery contained in this equipment may explode if disposed of in a fire.
.
Do not short circuit the battery.
.
Do not charge the nickel-cadmium battery used in this equipment in any other charger other than the one designed to charge this battery. Using another charger may damage the battery, or cause the battery to explode.
Uniden@ is a registered trademark of Uniden
Corporation.
Features, Specifications, and availability of Optional
Accessories are all subject to change without notice.
Table of Contents
Introduction...
Warning!
Feature Highlights
Unpacking
OptionalAccessories
Controls and Indicators
Getting Started 5
Chargingthe Battery 5
Mountingthe Antenna.
....
....6
Installingthe BeltClip 6
Operation 7
3
3
3
4
2
2 low Batterylevel Detection 8
Care and Maintenance
Replacingthe Rechargeable
Battery
8
8
Troubleshooting
Service
UHFCB Channel Information
...
10
9
9
Specifications 11
UH-O53 1
Introduction
Congratulations on your purchase of the
Sundowner UH-O53.
This 16-channel personal
UHF-CB 2-way radio represents a great value in professional portable communications. You'll find that it provides reliable, consistent performance for short-distance 2-way personal communications.
The Sundowner UH-O53 is designed to operate in simplex mode on CH 1 to CH 16 or duplex mode on CH 1 to CH8 where repeater service is available.
Warning!
The Citizens Band Radio Communication
Service (CBRS) is under the jurisdiction of the
Australian Spectrum Management Agency
(SMA). Any adjustment or alteration which will change the performance of the transceiver's original SMA type acceptance is STRICTLY
PROHIBITED.
Replacement or substitution of power or frequency determining components e.g. Crystals, Transistors, ICs, Diodes, etc. with other than those recommended by UNIDEN will cause violation to the SMA type acceptance technical requirement.
2 UH-O53
Feature
Hi~hts .
One
-
Watt Power Reliable short range 2
- way communication.
.
Simplex/Duplex Communication Allows the UH-oS3 to operate via a repeater station.
.
16
-
Channel Capability Uses
any of the
first 16 Channels of the UHF CB Band.
.
LED Message Indicators
instantly see when the radio is transmitting, the channel is busy, or the battery is Iow.
.
Rechargeable Nickel Cadmium Battery -
Eliminates the costly expense of frequently purchasing replacement batteries.
.
AC Adaptor/Charger Use to charge/ recharge the NickelCadmium battery.
.
Speaker/Microphone Jacks Plug in the
optional Remote Speaker/Microphone for easier communications.
Unpacking
Carefully check the contents against this list: .
UH-OS3 16-Channel Personal UHF 2-Way
.
.
.
Radio .
Nickel-Cadmium Battery (installed in radio)
Flexible Rubber Antenna
BeltClip
.
AC Adaptor/Charger
This Operating Guide (read carefully and save)
If any items are missing or damaged, contact your place of purchaseimmediately
Optional Accessories .
Spare Battery
Replacement Rechargeable battery.
.
Remote Speaker/Microphone
Use the
UH-oS3 while clipped to your belt or on a desk.
UH-O53
3
Controls and Indicators
On-Off/ VolumeControl Use to turn the radio on or off, and to adjustthe volume level.
Squelch ControlUseto eliminatebackground noise (the "rushing" sound) heard between transmissions.
Channel Selector Rotate this knob to select the desired channel.
Simplex/Duplex Switch Selects Simplex or
Duplex. Communication on CH 1 to CH8.
Antenna Connector Screw the flexible antenna into this TNC-type connector.
Speaker/Microphone Jacks Plug the optional
Remote Speaker/Microphone.
Charging Jack Plug the supplied AC Adaptor/
Charger into this jack to charge/recharge the battery while in the UH-oS3.
4 UH-O53
PTT
SWITCH
INDICATOR
~
La,) c
1Dden"
"""""""""'"
'" '" 0 0 ~.;' .;' I BUILT-IN
'" 0 0 0 0 0 '" SPEAKER
"'00000'"
1 ti
BUILT-IN
MICROPHONE l::J".
BUSY
I
C
::a
Cl)
"".ONAL
UHI'Z-WAY
RADIO
PIT (Press- To-Talk) Switch Press to transmit.
TXlBAIT Le Indicator This red LED lights when you press the PIT switch to transmit. The
LED blinks when the battery is Iow and needs recharging.
BUSY Indicator This amber LED lights when the signal being received on the current channel is strong enough to break squelch.
Built-in Microphone Speak into here when transmitting.
Built-in Speaker Provides audio output when receiving.
Getting Started
Charging the Battery
Before using the UH-QS3for the first time, or whenever the red BATT LO indicator lights showing the battery is Iow, you should fully charge the unit.
UH-O53 5
To charge the nickel-cadmium battery:
Using the AC Adaptor/Charger
1. Plug the AC adaptor/Charger into the Charging
Jack located on top of the unit.
WARNING!
Use only the supplied AC
Adaptor/Charger.
Any other AC Adaptor or external power plug having over-voltage or reversed polarity can cause overheating or damage to the circuitry.
2. Plug the charger into a standard AC outlet.
To fully charge the battery, leave the Adaptor/
Charger connected for between 9 and 11 hours.
Note: Switch OFF the unit while the battery is charging.
"
3. When charging is complete, disconnect the
Adaptor/Charger from the AC outlet, and from the radio.
Mounting the Flexible Antenna
Place the end of the antenna onto the TNC connectoron top of the radio and turn clockwise untiltight.
Installing the Belt Clip
Place the Belt Clip slightly above the mounting area on the back of the radio, and press downward and in.
6
U
H-O53
Qperation
Note: Before operating the UH-oS3 for the first time, make sure you have fully charged the battery.
1. Turn the UH-oS3 on by rotating the
On-OffNolume Control clockwise until you hear a click.
2. Adjust the Volume Control to a comfortable level.
3. Turn the Squelch Control fully counterclockwise. You will hear background noise, and the BUSY Indicator will light. Turn the
Squelch Control just until the background noise disappears and the BUSY Indicator goes out. At this setting, the received signal must be strong enough (>0.25jlV) to break squelch and be heard.
4. If the channel is clear, the BUSY Indicator will be out. (If the BUSY Indicator is lit, the channel is busy. Wait until the light goes out before you begin transmitting.) Press the PTT
Switch to transmit. The TX Indicator lights to indicate you are transmitting. Hold the built-in microphone (or optional Speaker/Microphone) approximately two inches from your mouth and speak clearly in a normal voice.
5. When you are through speaking, release the
PTT switch and listen for a reply. (The TX
Indicator goes out.)
6. When you are finished using the radio, be sure to turn it off to conserve battery power.
Simplex/Duplex Communication
Duplex Operation allows the Sundowner
UH-oS3 to operate via a repeater station on
Channels 1 through8. The set receiveson these channels but transmits 750 kHz higher than the receiverfrequency.
When the Simplex/Duplex switch is set to
Simplex position, the set receives and transmits on the same channel. (SimplexCommunication)
To use Duplex operation on a Channel where
Repeater Service is available, set the
Simplex/Duplexselectorswitch to "Duplex".
To put the Duplex channel back to normal
Simplex operation, set the Simplex/Duplex
Selectorswitch to "Simplex".
UH-O53
7
Low Battery Level Detection
Uniden Sundowner UH-oS3 has a built-in battery level detector circuit. It evaluates your
Battery Pack everytime you transmit to determine whether the power inside the Battery is still sufficient enough to support normal
Receive and Transmit communications.
When the PTT switch is pressed and the TX
LED blinks. It means the battery level is already
Iow and needs recharging. Under this condition, the unit no longer transmits RF Power. Have your battery charged fully or replaced by a fully charged battery to resume normal operation.
Care and Maintenance
The
UH-OS3 is designedto give you trouble-free service. There are no user-serviceable parts inside, and except for occasionally replacingthe rechargeable battery, no maintenance is required.
Warning!Unidendoes not representthis unit to be waterproof Do not expose the unit to moisture. Rain, dew, or other liquids may damage the internalcomponents.
Replacing the Rechargeable Battery
When it is time to install a new battery, use only the one made for this radio. Any other type of battery may damage your unit.
To replace the battery:
1. Remove the Belt Clip by lifting the tab and carefully sliding upward and out.
2. Remove the battery compartment cover on the back of the radio by pressing in and sliding the cover down and off.
3. Remove the rechargeable nickel-cadmium battery and replace with a new one. Be sure the terminals on the battery match up with the contacts in the radio.
4. Replace the battery compartment cover by sliding it back into place until it clicks.
5. Replace the Belt Clip.
Note: Be sure to recharge the battery before using the radio.
8 UH-O53
Troubleshooting
Problem
Suggestion
Unit does not power Battery voltage is Iow.
on.
Recharge, or replace with a new one.
No reception or Adjust the squelch and poor reception.
volume.
Antenna is not properly connected.
No transmission.
Battery voltage is Iow.
Recharge, or replace with a new one.
You may be out of range of the receiving party. Remember, this radio is used only for short distance communication.
If you are using the optional
Speaker /M icrophone, make sure it is properly connected.
Transmittingon any Maybe out of range of channel between the receiving party or if
CH1 to CH8 but the not using a repeater receiving party canstation check the Simplex!
not hear you.
Duplex Swch
(should
Setting be set to simplex)
Service
If your radio does not work properly, or if service is necessary, contact your local Uniden dealer or retum the product in its original carton. If you are shipping the item, enclose a description of the problem along with a copy of the original purchase receipt.
Send the product to the address listed in the Warranty (at the end of this manual).
UH-O53
9
UHF CB CHANNEL INFORMATION
Operating Mode
SIMPLEX DUPLEX
CH
RX
(MHz)
TX
(MHz)
RX
(MHz)
TX
(MHz)
1 476.425
476.425
476.425
477.175
2 476.450
476.450
476.450
477.200
3
4
476.475
476.475
476.475
477.225
476.500
476.500
476.500
477.250
5 476.525
476.525
476.525
477.275
6 476.550
476.550
476.550
477.300
7 476.575
476.575
476.575
477.325
8 476.600
476.600
476.600
477.350
9 476.625
476.625
476.625
476.625
10 476.650
476.650
476.650
476.650
11 476.675
476.675
476.675
476.675
12 476.700
476.700
476.700
476.700
13 476.725
476.725
476.725
476.725
14 476.750
476.750
476.750
476.750
15 476.775
476.775
476.775
476.775
16 476.800
476.800
476.800
476.800
Note: From Channel 9 to 16, irregardlessof
SIMPLEx/DUPLEX Switch setting, the transmit and receive frequency is the same.
10 UH-O53
S~ecifications
General
Channel:
16 (PLL)
Frequency Range: Simplex 476.425 MHz to
476.800 MHz
Duplex (TX) 477.175 MHz to
477.350 MHz
Antenna Connector: TNC type
Size:
150 mm(H) x
41 mm(D) x
63 mm(W)
Weight:
Speaker:
410 g
16Q, O.4W max
Microphone:
Approvals:
Built-in Electret type
SMAS250
Transmitter
Frequency
Tolerance at 25°C:
Frequency Stability oac to +55°C:
Carrier Power
::!:500Hz (nominal)
::!:5PPM
1W
Spurious Emission -30 dBm (or Better)
Modulation
Frequency
Response
(1 kHz REF)
500 Hz:
2000 Hz:
-6 dB
+6dB
Microphone
Sensitivity for +/-3 kHz Dev.
5mV
Maximum Deviation :!:4.7
kHz
(100 mV input)
Current Drain 550 mA
U
H-O53 11
Receiver
12 dB SINAD
Sensitivity:
SquelchSensitivity
Threshold:
Tight:
Audio Frequency
Response
(1 kHz REF)
500 Hz:
2000 Hz:
AdjacentChannel
Selectivity
(:!:25kHz)
0.2511V
0.251lV
1!lV
+3 dB
-6 dB
55 dB
Image Rejection
(1st & 2nd): 40 dB
Hum & Noise Ratio 38 dB
THD at Standard
Output Power: 3 %
Audio Output Power at 10% THD: 0.25 W
Maximum Audio
Output Power:
Oscillator Dropout
Voltage:
Standby Current
Drain:
Current Drain at
Maximum Audio
Output:
0.5W
6 V (max.)
40mA
250 mA
Specifications shown are typical and subject to change without notice.
12
UH-O53
WARRANTY
Uniden Sundowner UH-o53
16-Channel Personal UHF 2-Way Radio
Australian 1 Year Warranty
Note:
Please keep your sales docket as it provides evidence of warranty.
WARRANTOR: Uniden Australia Pty. Umited ACN 001 865498
ELEMENTS OF WARRANTY: Uniden warrants to the original retail owner for the duration of this warranty, its Sundowner UH-
053 16-Ghannel Personal UHF 2-Way Radio (hereinafter referred to as the Product), to be free from defects in materials and craftsmanship with only the limitations or exclusions set out below.
WARRANTY DURATION: This warranty to the original retail owner only, shall terminate and be of no further effect ONE (1)
Year after the date of original retail sale. This warranty will be deemed Invalid if the product is; (A) Damaged or not maintained as reasonable and necessary, (B) Modified, altered or used as part of any conversion kits, subassemblies, or any configurations not sold by Uniden, (C) Improperly installed, (D)
Repaired by someone other than an authorized Uniden Repair
Agent for a defect or malfunction covered by this warranty, (E)
Used in conjunction with any equipment or parts or as part of a system not manufactured by Uniden.
(F) Installed, programmed or seNiced by anyone other than an authorized
Uniden Repair Agent. (G) Where the Serial Number label of the product has been removed or damaged beyond recognition.
PARTS COVERED: This warranty covers for 1 year, the
Sundowner UH-053 16-Channel Personal UHF 2-Way Radio
Unit only. All accessories, NICAD Battery, AC Adaptor/Battery
Charger, Antenna, Belt Clip, are covered for 90 days.
STATEMENT" OF REMEDY: In the event that the product does not conform to this warranty at any time while this warranty is in effect, the warrantor at its discretion, will repair the defect or replace the product and return it to you without charge for parts and service.
THIS WARRANTY DOES NOT COVER OR PROVIDE FOR
THE REIMBURSEMENT OR PAYMENT OF INCIDENTAL
OR CONSEQUENTIAL DAMAGES.
WARRANTY CARD: If a warranty card has been included with this product then please fill it in and retum it to us within
14 days of purchase. Your name and serial number of the product will then be registered in our database and this will help us process your claim with greater speed and efficiency should you require warranty seNice.
PROCEDURE FOR OBTAINING PERFORMANCE OF
WARRANTY: In the event that the Productdoes not conform to this warranty,the Product should be shipped or delivered, freight pre-paid, with evidence of original purchase, (egl a copy of the sales docket),to the warrantorat:
UNIDENAUSTRALIA PTY.LIMITED
SERVICEDIVISION
345 Princes Highway, Rockdale, NSW 2216
Ph (02) 599 3100 FAX(02) 599 3278
Customers in other States should ship or deliver the Product freight pre-paid to their nearest Uniden Authorized Repair Centre.
(Contact Uniden for the nearest Warranty Agent to you)
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Printed in Philippines UTZZO I 859ZZ
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