Features 2
Preventive Maintenance 2
Troubleshooting2
Controls / Connectors / Indicators
Controls and Connectors3
Indicators4
Included with Your UH-090 5
Operation
Setting the AM Squelch 6
Setting the FM Squelch 6
Monitor 7
Selecting a Channel7
Transmitting7
Call Function (FM Only)7
Using Repeater Channels (FM Only)8
Operating the UH-090 in Duplex Mode8
Scanning8
Open Scan (OS) Mode9
Group Scan (GS) Mode9
Programming Scan Channels9
Selecting the Call Ring tone (FM Only)10
Roger Beep (FM Only)10
Busy Channel Lockout (FM Only)10
VOX Operation (optional VOX headset required) (FM Only)10
Programming the Instant Priority Channel11
Recalling the Instant Channel11
Dual Band Watch11
CTCSS (FM Only)11
Frequency Lists12
FM UHF - CB Frequency List12
AM - CB Frequency List12
CTCSS Tone List for FM Mode13
Specifications13
Warranty14
Technical Support and Service14
3
1
Introduction
The Uniden UH-090 is designed to provide you with years of trouble free service. Its rugged components and
materials are capable of withstanding harsh environments.
We are certain that you will enjoy your UH-090. Please read this Operating Manual carefully to ensure you gain
the optimum performance of the unit.
Features
Transmitt & Receive FM 40CH (UHF-CB, TX Power
5w)
Transmitt & Receive AM 40CH (AM Band, TX Power
5w)
LCD Display with Backlight
Signal Strength Meter
RF Power Indicator
Speaker Audio Volume Level Meter
One touch FM or AM Mode selectable
Dual Band Watch
Instant Channel programmable separately FM/AM
Modes
One touch Instant Channel recalling
Duplex Capability (from CH01 - CH08 per channel)
FM Only
FM Group Scan and Priority CH Watch
FM Open Scan
AM Group Scan with Priority CH Watch
Preventive Maintenance: The following system checks should be made every six to twelve months:
Check the Standing Wave Ratio (SWR).
Inspect the tightness of all electrical connections.
Inspect the antenna coaxial cable for wear or breaks on the shielding.
Inspect the tightness of all screws and other mounting hardware.
Troubleshooting: Should the unit malfunction or perform poorly, follow these procedures:
If the transceiver is completely inoperative...
Check the power cord and fuse.
If there is trouble with receiving...
Check the VOLUME control setting. Be sure the SQUELCH is adjusted properly. Possibly the radio is oversquelched.
If there is trouble with transmitting...
Check that the transmission line (coaxial cable) is securely connected to the ANTENNA connector.
Check that the antenna is fully extended for proper operation.
Check that all transmission line (coaxial cable) connections are secure and free of corrosion.
AM Open Scan
Scan Channel Memory On/Off separately with FM Open
Scan, FM Group Scan, AM Open Scan and AM Group Scan
Rotary Channel Select
Busy CH Lock-out Function - (FM Only)
Roger Beep Function On/Off (FM VOX Mode Only)
2 Different Ring Tones (FM Only)
38 Built-in CTCSS (Continuous T one Coded Squelch System)
codes that are user selectable (FM Only)
2 Levels Preset Squelch (FM Only)
Variable Squelch Level adjust (AM Only)
Volume Control with Power On/Off Switch
VOX (Voice Activated Function) (FM Only)
10 Steps VOX Mic sensitivity adjustment (FM Only)
Memory Backup if power fails
NOTE
Blackening may occur on the Liquid Crystal Display. If the UH-090 has been subjected to extreme
high temperature (above . This is not a fault. Normal LCD operation resumes when the
60°C)
temperature stabilizes back to standard operating conditions (0 to 55°C).
2
UNIDEN Model UH-090 Dual Band CB Radio (FM & AM)
Controls / Connectors / Indicators
23
1
6
5
4
Rotary
Channel
Selector
SLCT
STORE
TX
DUAL DUP
SLCT
FM/AM
DUAL
FM
SQT
MONGSSCAN
AM
SCAN
OS/GS
INST
MEM
BCL
VOX
CTCSS
MEMINST
INST SET
DUP
S/RF
FM SQ
CTCSS
VOL
SQ
VOL
Front
7
8
10
9
15
11
12
16
Rear
EXT.SP.
13
DC 13.8V
14
HF ANT.
UHF ANT.
Controls and Connections
Ref. ItemPageRef. Item Page
1
Liquid Crystal Display (LCD)
2
Rotary Channel Selector
3
On/Off Volume & AM Squelch
4
7
6
10
Memory Scan Channels and Duplex
On/Off
11
Instant Channel Recall and Instant
Channel Programming
8, 9
11
4
Push to Talk (PTT) Switch
5
Call Button
6
Monitor Button
7
SLCT - Select Button
8
FM/AM and Dual Band Watch
Scan On/Off and Open or Group
Turn the Unit ON by rotating the
volume control clockwise. Select AM
by pressing .
AM icon appears.
FM/AM
You must select a channel
which is not in use before
setting the SQUELCH
NOTE
control. (see p. 7)
Rotary
Channel
Selector
SLCT
FM/AM
DUAL
AM
SCAN
OS/GS
MEMINST
DUP
INST SET
S/RF
FM SQ
CTCSS
VOL
SQ
VOL
Strong Signals
Medium Signals
Weak Signals
Noise
Think of the squelch control as a
gate. If you turn Squelch fully
clockwise it raises the ‘Squelch
Gate’ so high that no signals get
through.
Strong Signals
Medium Signals
Weak Signals
Noise
If you turn Squelch fully
counterclockwise it lowers the
‘Squelch Gate’ to the extent that
all signals get through - weak,
medium and strong signals and
noise.
Setting the FM Squelch
The FM Band has Automatic Squelch Control. It
requires no adjustment. However, if you are in a very
high noise area it may break through. Press
FMSQ
ooooo to select the tight squelch mode.The SQT
icon appears
NOTE
Note: Selecting tight squelch mode may
prevent the reception of weak signals.
FM/AM
DUAL
FM
SQT
SCAN
OS/GS
Strong Signals
Medium Signals
Weak Signals
Noise
To set the ‘Squelch Gate’ to the
desired level, turn the squelch knob
counterclockwise until you hear
noise. Then carefully turn the
Squelch knob clockwise until the
noise fades. Now only strong
signals get through.
VOL
SQ
VOL
MEMINST
INST SET
DUP
S/RF
FM SQ
CTCSS
6
UNIDEN Model UH-090 Dual Band CB Radio (FM & AM)
Operation
Monitor
Press the MONI button on the microphone to open the squelch and receive all
weak signals. Press and hold the MONI button for 2 seconds to hold the squelch
open. Press MONI again momentarily to cancel.
Selecting a Channel
FM/AM
Press to select either FM or AM
channels. Turn the Rotary Channel Selector to
select the desired channel.
Rotary
Channel
Selector
SLCT
STORE
FM/AM
DUAL
FM
SCAN
OS/GS
Transmitting
Select the desired channel. Press the Microphone’s PTT button and speak normally
into the microphone. Hold it approx. 7cm from your mouth. Release the PTT button
to end the transmission and listen for a reply.
Call Function (FM Only)
Press the microphone Call Button. A two second ringing tone will be transmitted.
You may select 2 types of ring tones (see p.10 ).
MEMINST
DUP
INST SET
PTT
MONI
S/RF
VOL
FM SQ
CTCSS
CALL
Using Repeater Channels (FM Only)
UHF CB Repeaters are used to retransmit or relay your signal. Repeaters will extend the range of your radio and
overcome the shielding effect caused by solid obstructions. In normal Simplex operation, your radio transmits
on one particular frequency and receives on that same frequency. If there is a barrier that partially blocks your
transmitted signal, the probability of another radio receiving the signal is very slim. Hills, tall buildings, metallic
structures, ... etc. tend to act as a screen between radios.
Repeater Station
Normal Simplex Operation
Transmitting on CH 31
Standard Operation without
the aid of a Repeater Station
No Signal
being Received
7
CH 31
Operation with the aid of
Repeater Station (Duplex)
CH 01
UNIDEN Model UH-090 Dual Band CB Radio (FM & AM)
Operation
Using Repeater Channels (FM Only)
The Signal coming from your radio is received by the Repeater Station and then retransmitted at the same time
on another channel. This operation is called "Duplexing".
For example,
CH01 on Duplex Mode will Receive on CH 01 but Transmit on CH31
CH02 on Duplex Mode will Receive on CH 02 but Transmit on CH32 etc ....
If you transmit on CH01 Duplex mode, you are actually transmitting on CH31, the repeater station down-converts
your signal and retransmits on CH01.
Operating the UH-090 in Duplex Mode
For this example we are adopting CH01 as the channel being used in your area for repeater use.
Press and hold for 2 seconds to switch
Duplex On. The DUP icon appears.
Press and hold again for 2 seconds to switch
Duplex off.
Only channels 01 - 08 are available for Duplex
NOTE
MEM
MEM
Check with your loacl Retailer for
information on available Repeaters
FM/AM
DUAL
FM
DUP
SCAN
OS/GS
MEMINST
DUP
INST SET
S/RF
FM SQ
CTCSS
VOL
SQ
VOL
Scanning
The UH-090 has a scanning feature that allows you to search for active channels automatically.
Furthermore, the UH-090 is designed to have two types of scanning; Open Scanning (OS) and Group Scanning
(GS), to give you flexibility and allow you to use the radio more effectively.
SCAN
Press and Scanning starts. The SCAN
icon appears.
SCAN
FM/AM
DUAL
8
FM
MEM
SCAN
OS/GS
MEMINST
DUP
INST SET
S/RF
FM SQ
CTCSS
VOL
SQ
VOL
UNIDEN Model UH-090 Dual Band CB Radio (FM & AM)
Operation
Open Scan (OS) Mode
Allows continuous scanning of channels stored in the Open Scan memory. If an active channel is found, scanning
will stop on that channel.
SCAN
FM
MEM
BCL
This example shows CH40 active.
If the received signal ceases, the unit will wait 3 seconds for the signal
to return, otherwise scanning resumes.
To skip the active channel, press momentarily. Scanning resumes. To deactivate SCAN, press
MEM
or the PTT button on the microphone.
If SCAN is deactivated while on an active
channel, the UH-090 will stay on that active
NOTE
channel. If no other channels are active, the
UH-090 will reinstate the starting channel.
NOTE
OS is indicated by the absence of
the GS icon.
Group Scan (GS) Mode
Allows you to monitor a Priority (Instant) Channel while scanning (Instant Priority channel see p. 11)
To use GS Mode Scanning, press and hold for 2 seconds.
GS icon appears on the display. OS Mode is indicated by the absence
of the GS icon.
GS Scanning checks the Instant Priority Channel for activity regularly.
If the Priority Channel becomes active the radio will stay on that channel for as long as the signal is present. If
the received signal ceases, Priority Scanning continues after 3 seconds.
If scanning stops on a channel which is not a Priority Channel, UH-090 will continue monitoring the Priority Channel
for activity while listening to the active one. To deactivate SCAN, press the button or the PTT button.
If SCAN is deactivated while tuned
to an active channel, the UH-090
will stay on that active channel.
If none of the channels are active,
NOTE
the UH-090 will reinstate the Instant
Priority Channel
If GS Scanning is initiated when
there are no channels programmed
NOTE
in GS memory, an error tone will
be heard and scanning will not start.
SCAN
Rotary
Channel
Selector
SLCT
STORE
FM/AM
DUAL
FM
INST
GS
SCAN
FM
GSSCAN
SCAN
OS/GS
MEMINST
DUP
VOX
CTCSS
VOX
CTCSS
INST SET
S/RF VOL
SCAN
S/RF VOL
S/RF
FM SQ
CTCSS
S/RF
S/RF
VOL
VOL
VOL
Programming Scan Channels
Select which Scanning Mode you wish to use
- OS or GS (see p. 9). Select the channel you
want to store.
NOTE
Press to store. MEM icon appears and
a short tone beep is heard.
To remove the channel from Memory, press
MEM
once more. A short beep is heard and
the MEM icon disappears.
OS is indicated by the absence of
the GS icon.
MEM
Rotary
Channel
Selector
SLCT
STORE
9
FM/AM
DUAL
FM
GSSCAN
MEM
SCAN
OS/GS
MEMINST
DUP
INST SET
S/RF
FM SQ
CTCSS
VOL
UNIDEN Model UH-090 Dual Band CB Radio (FM & AM)
Operation
Selecting the Call Ring tone (FM Only)
SLCT
Press once. Turn the Rotary Channel
Selector to either or . Press and hold
SLCT
for 2 seconds to store the new setting.
If a button is not pressed within 10
seconds the UH-090 will
NOTE
automatically exit Select Mode.
Roger Beep (FM VOX Only)
A Roger Beep may be added to the end of an
FM VOX transmission.
SLCT
Press twice.
Turn the Channel Selector to display .
Press and hold for 2 seconds to store
SLCT
the new setting.
If a button is not pressed within 10
NOTE
seconds the UH-090 will
automatically exit Select Mode.
Busy Channel Lockout (FM Only)
If the channel is already in use, you can prevent
the UH-090 from transmitting .
SLCT
Press 3 times. Turn the Rotary Channel
Selector to display . Press and hold
SLCT
for 2 seconds to store the new setting.
If a button is not pressed within 10
seconds the UH-090 will
NOTE: FM Channel 05 and 35 are Emergency Channels and FM Channel 11 is a calling channel.
Australia & New ZealandAustralia ONLY
(MHz)
476.425
476.450
476.475
476.500
476.525
476.550
476.575
476.600
476.625
476.650
476.675
476.700
476.725
476.750
476.775
476.800
476.825
476.850
476.875
476.900
476.925
476.950
476.975
477.000
477.025
477.050
477.075
477.100
477.125
477.150
477.175
477.200
477.225
477.250
477.275
477.300
477.325
477.350
477.375
477.400
DUP (MHz)(MHz)
477.175 CH31
477.200 CH32
477.225 CH33
477.250 CH34
477.275 CH35
477.300 CH36
477.325 CH37
477.350 CH38
AM - CB Frequency List
N Z ONLY
(MHz)
26.965
26.975
26.985
27.005
27.015
27.025
27.035
27.055
27.065
27.075
27.085
27.105
27.115
27.125
27.135
27.155
27.165
27.175
27.185
27.205
27.215
27.225
27.255
27.235
27.245
27.265
27.275
27.285
27.295
27.305
27.315
27.325
27.335
27.345
27.355
27.365
27.375
27.385
27.395
27.405
26.330
26.340
26.350
27.370
26.380
26.390
26.400
26.420
26.430
26.440
26.450
26.470
26.480
26.490
26.500
26.520
26.530
26.540
26.550
26.570
26.580
26.590
26.620
26.600
26.610
26.630
26.640
26.650
26.660
26.670
26.680
26.690
26.700
26.710
26.720
26.730
26.740
26.750
26.760
26.770
12
UNIDEN Model UH-090 Dual Band CB Radio (FM & AM)
CTCSS Tone List for FM Mode
Tone
No.
00 (’oF’)
01
02
03
04
05
06
07
08
09
10
11
12
NOTE: This List is for FM Channels ONLY. FM Channels 05, 11 and 35 are not CTCSS programmable.
Tone
Frequency (Hz)
OFF
67.0
71.9
74.4
77.0
79.7
82.5
85.4
88.5
91.5
94.8
97.4
100.0
Tone
No.
13
14
15
16
17
18
19
20
21
22
23
24
25
Tone
Frequency (Hz)
103.5
107.2
110.9
114.8
118.8
123.0
127.3
131.8
136.5
141.3
146.2
151.4
156.7
Tone
No.
26
27
28
29
30
31
32
33
34
35
36
37
38
Tone
Frequency (Hz)
162.2
167.9
173.8
179.9
186.2
192.8
203.5
210.7
218.1
225.7
233.6
241.8
250.3
Specifications
General
Channels: 40
Microphone: 600 ohm,
Speaker: 8 ohm, 3w
Antenna Connector: M -Type
Jacks & Connectors: EXT SP 3.5mm
Operating Temperature: 0 to + 55 C
Power Requirements: 13.8 VDC Nominal
Antenna Impedence: 50 ohms
Dynamic Type
Transmitter (FM)
Frequency Tolerance at 25 C
(5 minutes after turning on): +/- .5 kHz
carrier Power: 5W (max)
Spurious Emission: -40 dBm
Current Drain: 1.5 Amps
Modulation Frequency Response
(1 kHz, 0 dB reference at 1 kHz deviation)
Lower at 500 Hz: -6dB
Upper at 2.0 kHz: +5 dB
Microphone Sensitivity for
3 kHz Deviation: 5mV
Maximum Deviation
at 1 kHz: +/- 4.5 kHz
at 6 kHz: +/-1.5 kHz (max)
Receiver (FM)
Sensitivity at 12dB SINAD: 0.23 uV or better
Overall Audio Fidelity
(1 Khz, 0 dB reference)
Lower at 500 Hz: +5 dB
Upper at 2 kHz: -7 dB
Receiver (FM) - cont’d
Adjacent Ch Selectivity (+/-25 kHz): 64dB
Max. Audio Output Power: 3W
Audio Output Power at 10% HD : 3W
Hum and Noise Ratio at Input 1 mV: 45 dB
Squelch Sensitivity at Threshold : 0.19 uV
Squelch Sensitivity at Tight: 1 uV
Image Rejection Ratio: 60 dB
IF Rejection Ratio: 85 dB
Oscillator Dropout Voltage: 9V
Current Drain at NO Signal: 350mA
Current Drain at Max. Output: 730 mA
Transmitter (AM)
Power Output: Max. Legal Output
Modulation: Class B
Receiver (AM)
Sensitivity: 0.5 uV for 10dB;(S
Selectivity: 6dB @ 7KHz, 55dB
Image Rejection: 65 dB typical
Automatic Gain Control: (AGC) - less than
Squelch: Adjustable;
Power
( Amplitude
Modulation)
+ N) /N typical
@ 10KHz typical
10dB change in
audio output for
input from 10 to
50,000 microunits
threshold less than
0.5 uV
13
UNIDEN Model UH-090 Dual Band CB Radio (FM & AM)
Warranty
ONE YEAR LIMITED WARRANTY
IMPORTANT: Evidence of the original purchase is required for warranty service.
WARRANTOR: Uniden New Zealand Limited. Uniden Australia Pty Ltd. ACN 001 865 498
ELEMENTS OF WARRANTY: Uniden warrants to the original retail owner for the duration of this
warranty its UH-090 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 is only valid in the original
country of purchase and shall be of no further effect 12 months 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 authorised Uniden Repair Agent for a defect or malfunction covered
by this warranty, (E) Used in conjunction with any equipment or parts or as a part of a system
not manufactured by Uniden. (F) Where the Serial No. label of the product has been removed
or damaged beyond recognition.
PARTS COVERED: This warranty covers for one (1) year, the UH-090 tranceiver only. All
accessories (Mounting bracket, Microphone etc.) are covered for 90 days only.
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. THIS GUARANTEE IS IN ADDITION TO AND DOES NOT
IN ANY WAY AFFECT YOUR RIGHTS UNDER THE CONSUMER ACT.
WARRANTY CARD: If a Warranty Card has been included with this Product, please complete
and return to us within 14 days of purchase. Your name and the 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 service.
PROCEDURE FOR OBTAINING PERFORMANCE OF WARRANTY: in the event that the Product
does not conform to this warranty, the Product should be shipped or delivered, freight prepaid,
with evidence of original purchase (e.g. a copy of the sales docket) to the warrantor at:
Technical Support & Service
Should you find it desirable or necessary to service your UH090, we suggest you contact the Uniden Dealer where
your purchase was made. Your dealer will be able to assist you with complete service information.
If you require service that is within the terms of your warranty you should present a copy of your receipt to your
dealer to authenticate your claim.
If you find it inconvenient to obtain service assistance from a dealer, please pack your radio in a suitable container
that will provide adequate protection. Enclose a note describing the problem and a copy of your receipt, and send
the radio transportation prepaid to:
UNIDEN AUSTRALIA PTY LIMITED
SERVICE DIVISION
345 Princes Highway,
Rockdale, NSW 2216
AUSTRALIA
Ph: (02) 9599-3100
Fax: (02) 9599-3278
Toll Free: 1300 36 895
www.uniden.com.au
UNIDEN NEW ZEALAND LIMITED
SERVICE DIVISION
150 Harris Road,
East Tamaki,
Auckland,
NEW ZEALAND
Ph: (09) 273 8383
Fax: 274 0009
Toll Free: 0800 486 4336
www.uniden.co.nz
14
C
2001 Uniden Australia Pty Limited / Uniden New Zealand Limited
Printed in the Philippines
PPC: UTZZ01879ZZ
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