Uniden UH820 Series User manual

Handheld UHF-CB Transceiver
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UH820 series

LITHIUM ION BATTERY PACK WARNING
•This equipment contains a Lithium Ion Battery Pack.
• The Lithium Ion Battery Pack contained in this equipment may
explode if disposed of in a fire.
• Do not short-circuit the Battery Pack.
• Do not charge the Lithium Ion Battery Pack used in this equipment in
any charger other than the one designed to charge this Battery Pack.
Using another charger may damage the Battery Pack or cause the
Battery Pack to explode.
• Lithium Ion batteries must be disposed off properly.
USER LICENSE INFORMATION
NOTE
The citizen band radio service is licensed in Australia by
ACMA Radio-communications (Citizen Band Radio
Stations) Class Licence and in New Zealand by MED
General User Licence for Citizen Band Radio and
operation is subject to conditions contained in those
licenses.
2
Warning
UNIDEN UH820
Handheld UHF-CB Transceiver

Introduction
4
Included in your Package 5
Controls and Indicators 6
Getting Started
Connect Drop-in Charger with the AC Adaptor 7
Attaching the Antenna 7
Attaching the Battery Pack 8
Attaching the Beltclip 8
Charging the Battery Pack 9
Battery Level Display 10
Accessory Jack Cover 11
Connecting the SPKR/MIC 11
Operation
Power On/Off 12
Volume 12
Setting the Squelch 12
Selecting Channel 13
To Transmit and Receive 13
To Operate in Duplex Mode 14
Transmit Power Select 15
Smart-key Function 15
Scanning 15
17
18
Open Scan (OS) Mode
Group Scan (GS) Mode
19
19
19
20
20
21
21
22
22
23
23
24
Priority Channel
Drop-Out Delay
Instant Priority Channel
Monitor
CTCSS
DCS
VOX
Busy Channel Lock-out (BCL)
Call Tone
Roger Beep
Key Beep
Keypad Lock
Backlighting 24
CTCSS Codes and Frequencies 25
DCS Codes Table 26
UHF-CB Channel Guidelines 27
UHF-CB Channels and Frequencies 28
Warranty 30
3
Contents
Handheld UHF-CB Transceiver
UNIDEN UH820

4
Introduction
Handheld UHF-CB Transceiver
The UH820 Series is a portable two-way UHF-CB radio. Its compact,
rugged and fits easily on your hand. This hand held UHF-CB radio will
give you consistent, outstanding performance in general conditions and
situations. To ensure that you get the most from the radio features,
please read this operating guide carefully before using the unit.
FEATURES
ŸDesigned and Engineered in Japan
Ÿ80 Narrowband Channels¹
Ÿ2.0 Watt Maximum TX Output Power
ŸLong Life 1600mA Lithium-ion Battery
ŸOne-Touch Smart Key
ŸRange Extender (Duplex) Capability
ŸVOX Hands Free Capable
ŸInterference Eliminator (CTCSS)
ŸDigital Coded Squelch (DCS)
ŸBacklit LCD Display
ŸAuto Battery Save
ŸOpen Scan
ŸGroup Scan
ŸRapid scan speed
ŸBattery Level Indicator
ŸBusy Channel Lockout Function
ŸRoger Beep
ŸKeypad Lock
1
Refer to p.27 - p.29 for channel information
UNIDEN UH820

ITEM
UH820 UH820-2
UH820 UHF Radio
1600mAh Li-Ion
Battery Pack (BT820) 1 2
Belt Clip 1 2
Drop-In Charger (DT820A) -- 1
AC Adaptor
(PS-S05C0BU4) 1 1
USB Cable 1 1
OWNERS MANUAL 1 1
5
Included in your Package
Handheld UHF-CB Transceiver
NOTE
If any of these items are missing from the box, contact your
place of purchase, immediately.
UNIDEN UH820
Optional Accessories
External Speaker MIC (SM-800)
Heavy Duty Earpiece MIC with VOX switch (EM-800)
Air Tube Headset with VOX switch (TM-800)
1 2

6
Controls and Indicators
Handheld UHF-CB Transceiver
1 Antenna
2 SCAN/MON
3 Rotary Vol/Power Knob
4 Speaker
5 Accy Speaker MIC Jack
6 Microphone
7 LCD Display
8 USB Charge port
9 UP and DOWN Keys
10 MENU [MEM] Key
11 LED
12 PTT KEY
13 SMART KEY
A Transmit
B Channel Indicator
C Scan CH Memory
D Group Scan
E Key Lock
F
G
Battery Indicator
H
Scanning
I
VOX
Busy Channel
Lockout
J CTCSS/DCS
Code Indicator
K
Digitally Coded
Squelch
L
Continuous Tone
coded Squelch
System
M Priority Watch
N High Power
1
2
3
4
5
6
7
9
11
10
12
13
A B
C D E F
G
H
I
N
M
L K J
UNIDEN UH820
8

7
Getting Started
Handheld UHF-CB Transceiver
UNIDEN UH820
Connect Drop-in Charger with AC Adaptor
(UH820-2 only)
Plug one end of the USB cable into
the drop-in charger and the other
end to the AC adaptor. Plug the
AC adaptor into the wall outlet.
OR...
Connect the USB cable directly to the charge jack of the radio.
Attaching the Antenna
Attach the antenna to the radio.
Be sure the antenna is firmly seated.
NOTE
The drop-in charger are not water proof. Ensure the radio is
dry before connecting to the charger. Don’t use the
chargers when the ambient temperature is below 5º C (37º
F) or above 40º C (108º F). If Charge LED didn’t light up,
please confirm the above temperature.

8
Getting Started
Handheld UHF-CB
Attaching
Transceiver
the Battery Pack
Avoid exposing the Lithium Ion battery, attached or
CAUTION
unattached to the radio, in direct sunshine, heated cars, or
in areas with temperatures below –20°C (–4°F) or above
+60°C (+140°F).
Exposing the chemicals contained within the battery pack to
temperatures above +60 °C (+140°F) may cause the battery
to rupture, fail or reduce performance.
In case of exposure to cell contents, wash the affected area
thoroughly, and seek medical attention.
Additional battery cautions should be applied as described
on p.2.
To Attach the Belt Clip:
Slide the belt clip into the catch until it snaps into place.
To Remove the Belt Clip:
Pinch and hold the belt clip latch and then slide the belt clip up
and out of the catch.
UNIDEN UH820
The UH820 series radios can be powered with a
lithium ion battery pack or with optional 3xAA
batteries fitted into the battery jacket.
1. Remove COVER BATTERY
2. Place the battery pack onto the back of the
radio. It will only t one way.
3. While holding down the locking hook, slide
COVER BATTERY onto the back of Radio.
4. Completely slide in and then release the locking hook.
NOTE
The radio can be charged in the drop-in cradle on only
when the rechargeable lithium-ion battery is tted.

9
Getting Started
Handheld UHF-CB Transceiver
Your radio is powered by a specially designed Lithium Ion battery pack.
• Before operating the radio, charge the Lithium Ion battery pack for
4 hours without interruption in the drop-in charger.
The drop-in charger can charge the Lithium Ion battery pack attached to
the radio, in the front charging slot.
1. Place the radio, in the drop-in charger.
2. The red LED illuminates and stays ON, until fully charged.
• The charger won’t overcharge the battery packs.
3. The green LED illuminates and stays ON after charging is
completed.
•Do not transmit when the radio is charging; in the drop-in
charger or when connected to the DC adaptor!
• You can monitor incoming calls while the radio is in the drop-in
charger.
Charging the Battery Pack
For the initial battery charge, make sure the radio is off for
NOTE optimum charging.
UNIDEN UH820

Getting Started
10 Handheld UHF-CB Transceiver
Battery Level Display
When (PTT) is pressed at Level 1, an error tone sounds
NOTE
and transmission is disabled. Once at Level 1 the unit
will automatically shutdown after 30 seconds.
NOTE
Recharge the battery at any time. When the battery is
empty, it will take up to 4 hours.
Battery Life: up to 21 hours.
This is based on the following Duty Cycle:
Transmit (Low Power) 5%
Receive 5%
Stand-by 90%
LED Status
LED What it Indicates
Green Start Up/Power on
Green Flash Monitor mode
Green Receiving Signal
Red Transmitting signal
LED
UNIDEN UH820
The BATTERY icon at the top of the screen indicates the battery level at
all times. The battery level is displayed in 4 levels.
LEVEL 4 LEVEL 3
Battery 100% full Battery approx.
40% capacity
LEVEL 2 LEVEL 1
Low Battery (ashing)
Empty Battery
At LEVEL 2, low battery alert will be sounded every 15 minutes.

11 Handheld UHF-CB Transceiver
Getting Started
Accessory Jack Cover
Make sure the Accessory Jack Cover is rmly pushed in to maintain
submersible rating.
Connecting the Earpiece MIC or SPKR/MIC.
UNIDEN UH820
Release the Accessory Jack Cover to plug in the Earpiece MIC
or SPKR/MIC.

12
Operation
Power On/Off
Handheld UHF-CB Transceiver
1. To turn the unit ON, rotate the [ON/OFF VOL]
knob clockwise. A channel number and battery
level should appear on the display.
2. To turn the unit OFF, rotate the [ON/OFF VOL]
counter-clockwise. The display will disappear.
Volume
Rotate the [ON/OFF VOL]
speaker volume to desired listening level.
Setting The Squelch
The squelch is used to eliminate any annoying background noise when
there are no signals present.
Auto/Sq 1 - max sensitivity (min squelch)
Sq 5 - min sensitivity (max/tight squelch)
1.
current squelch level will ash on the display.
2. Use or to change the squelch level from
Auto/1 to 5.
3. Press & hold [MENU/MEM] to save and exit.
knob clockwise or counter-clockwise to adjust
Press [MENU/MEM] 2 times. Sq and the
UNIDEN UH820

13 Handheld UHF-CB Transceiver
Operation
Selecting A Channel
Press or to select the desired channel.
NOTE
If you press and hold or the
channel numbers will scroll rapidly.
To Transmit and Receive
The radio uses the UHF-CB Channels.
For your reference a list of the available
channels and corresponding frequencies
is printed on p.28 - p.29. (Channels 22
and 23 are for telemetry and
telecommand applications, channels 61,
62 and 63 are for future use. TX is
inhibited on these channels.)
The maximum RF transmit power is 2.0W.
(see Transmit Power Select, p.15.)
1. Before you transmit, listen for activity on the selected channel.
2. When the channel is clear;
-Press [PTT] to transmit at the selected Hi/Lo transmit power,
TX appears on the LCD and LED lights red during transmit.
Hold the radio with microphone approximately 5cm in front of your mouth
with the antenna at approximately 45° angle away from your head.
Speak in a clear, normal conversational voice.
4. When you have finished speaking, release [PTT] and listen for a
response then TX disappears on the LCD. LED lights green while
receiving a signal.
UNIDEN UH820

14
Operation
Handheld UHF-CB
To
Transceiver
Operate In Duplex Mode (Repeaters)
The Duplex function enables you to access local repeater stations.
NOTE
You can only activate Duplex on CH01-CH08
and CH41-CH48.
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.
Eg. CH01 is being used in your area
for repeater use.
1. Press [MENU/MEM] 4 times.
2. Press or to change the selection.
r appears for CH01-CH08 and n appears
for CH41-CH48 when duplex is selected.
3. Press & hold [MENU/MEM] to save and exit.
NOTE
Contact your retailer for a list of repeaters
available in your area.
Operation with the aid of a Repeater
UNIDEN UH820

15 Handheld UHF-CB Transceiver
Operation
Transmit Power Select
This radio has two transmit power levels:
Hi: 2.0 Watt.
Lo: 0.5 Watt.
To change your transmit power level:
1. Press [MENU/MEM].
2. Press or to change the
setting to Hi or Lo.
3. Press & hold [MENU/MEM] to save and exit. TX Power Low
TX Power High
Smart-key Function
The smart key [S] provides one touch access to one of these functions;
Instant Channel, Call Tone or Key Lock.
Press & hold [S] to change the smart key function between the three
options.
Scanning
There are 2 scanning mode s;
Open Scan (OS) and
Group Scan (GS)
During SCAN the radio only checks channels or frequencies that are in
the SCAN Memory, which are indicated by the M (memory) icon. The
radio maintains two SCAN Memories; one for Open Scan (OS) mode
and the other for Group Scan (GS) mode, to give you flexibility and
allow you to use the radio more effectively.
UNIDEN UH820

16
Operation
Handheld UHF-CB Transceiver
To initiate scanning,
1. Press [SCAN/MON] to start Scanning.
2. The SCAN icon flashes.
3. The scan direction can be changed at any time by pressing ▼or ▲.
4. Press [SCAN/MON] to stop Scanning.
To select scan mode,
1. Press [MENU/MEM] 7 times.
2. Press ▲ or ▼ to change the setting to SCAN (Open Scan)
or GS SCAN (Group Scan).
3. Press & hold [MENU/MEM] to save and exit.
The selected scan mode appears on the display.
OS (Open Scan)
Press ▲ or ▼ to change the setting
UNIDEN UH820
GS (Group Scan)

17 Handheld UHF-CB Transceiver
Operation
Add/Remove Channels from Memory
1. Select which Scanning Mode you wish to use on the channel OS or GS
Mode.
NOTE
OS is indicated by the absence of the GS icon.
2 . Select the channel you want to store by pressing ▼or ▲.
3. Press and hold [MENU/MEM] to store.
4. To remove the channel from Memory, Press and hold [MENU/MEM]
to remove. M icon disappears.
UNIDEN UH820
Open Scan (OS) mode
Open Scan is the default scan mode.
All UHF-CB have been added to the OS SCAN Memory for convenience.
To add/remove channels from OS SCAN Memory, refer to previous
section.
Allows continuous scanning of all selected channels. If an active channel
is found, scanning will stop on that channel. If the received signal
ceases, the unit will wait 2 seconds for the signal to return, otherwise
scanning resumes.
After transmission in scan mode, the scan mode will be cancelled.

18
Operation
Handheld UHF-CB Transceiver
UNIDEN UH820
Group Scan (GS) Mode
Channels must be stored to the GS SCAN Memory before group scan
can start. To add/remove channels from GS SCAN Memory, refer to
p.17.
Includes the accessory feature Priority Watch which allows you to
monitor the Instant Priority Channel while scanning (see p.19 for setting
Instant Priority Channel and p.19 to turn on Priority Watch).
If scanning stops on a channel which is not a Priority Channel, UHF
CB Radio will continue monitoring the Priority Channel for activity while
listening to the active one.
To select GS scan mode,
1. Press [MENU/MEM] 7 times.
2. Press ▲ or ▼ to change the setting to GS SCAN (Group Scan)
3. Press & hold [MENU/MEM] to save and exit.
To select OS scan mode,
1. Press [MENU/MEM] 7 times.
2. Press ▲ or ▼ to change the setting to SCAN (Open Scan).
3. Press & hold [MENU/MEM] to save and exit.
NOTE
OS Mode is indicated by the absence of the GS icon.
NOTE
If SCAN is deactivated while on an active channel, the
radio will stay on that active channel. If no channels are
active, the radio will reinstate the starting channel.

19
Operation
Handheld UHF-CB Transceiver
Priority Channel Watch During Group Scan
The feature allows user to monitor the Instant Priority channel every 1.5
seconds during Group Scanning.
1. Press [MENU/MEM] 5 times. PRI setting ashes.
2. Press or to change the setting on or off.
3. Press & hold [MENU/MEM] to save and exit.
Drop-Out Delay
While scanning, the radio stops at a busy channel and receives a signal.
When the received signal is over, the unit will wait for 2 seconds for the
return of the signal, otherwise, the radio resumes scanning.
Recalling the Instant Channel
Programming the Instant Priority Channel
1. Press [MENU/MEM] 6 times. PRI and current channel
setting ashes.
2. Press or to select the desired channel.
3. Press & hold [MENU/MEM] to save and exit.
UNIDEN UH820
Press [S] when Smart Key is set to Instant Channel function.

Operation
Monitor
This feature enables users to listen in for weak signals on the current
channel at the press of a button.
To use monitor,
• For continuous listening.
Press and hold [SCAN/MON]
A beep tone will be heard and
the receiver circuit will stay open, letting
in both the noise & weak signals.
•RX LED flashes green.
• To return to normal receive mode
Press [SCAN/MON]
CTCSS
CTCSS is a feature that allows a group
to talk to each other without hearing
other users on the same channel.
1. Select desired channel.
2. Press [MENU/MEM] 3 times.
DCS/CTCSS setting ashes.
3. Press or to change the selection.
4. Press & hold [MENU/MEM] to save and exit.
NOTE
20
Handheld UHF-CB Transceiver
UNIDEN UH820
Select oF to turn DCS/CTCSS off for the selected channel.