
Handheld UHF-CB Transceiver
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Australia: www.uniden.com.au
UH835S Series
UH850S Series

Being defined as having no ingress of water when immersed at 1
metre for 30 minutes.
The radio will only meet this rating if fully assembled and all
rubber seals and covers are well maintained and correctly fitted.
This means that the accessory jack cover is sealed, and
the battery pack and antenna are attached and securely
fastened.
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 UH835S/UH850S
Handheld UHF-CB Transceiver
WATERPROOF: IPX7/JIS7
Uniden’s UH835S/UH850S radio is designed to meet the water
proofing standard of IPX7/JIS7.
This Means:

3
Contents
Handheld UHF-CB Transceiver
UNIDEN UH835S/UH850S
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
LED Status 11
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
Master Scan (M.SCN) Mode 17
Open Scan (OS) Mode 20
Group Scan (GS) Mode 21
Priority Channel 22
Drop-Out Delay 22
Instant Priority Channel 22
Monitor 23
CTCSS 23
DCS 24
VOX 24
Busy Channel Lock-out (BCL) 25
Call Tone 25
Roger Beep 26
Key Beep 26
Scramble 26
Keypad Lock 27
Backlighting 27
Voice Enhancer (EOL) Setting 27
CTCSS Codes and Frequencies 28
DCS Codes Table 29
UHF-CB Channel Guidelines 30
UHF-CB Channels and Frequencies 31
Warranty 33

4
Introduction
Handheld UHF-CB Transceiver
The UH835S/UH850S/UH850S-2TP is a IPX7/JIS7 Waterproof, portable
two-way UHF-CB radio. It is compact, rugged and fits easily in your hand.
This hand held UHF-CB radio will give you consistent, outstanding
performance in virtually all 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
• Narrow Band (NB) Radio
•
1
Communicate with up to 80 Channels in the UHF-CB Band
• 5W (UH850S) / 3.5W (UH835S) Max TX Power
• LOW/HIGH Switchable TX Power
* UH835S is 1W/3.5W and UH850S is 1W/5.0W
•1 Duplex Mode
•
Master Scan
• Open and Group Scan
• Busy Channel Lockout Function
• VOX Function
• Accessory Jack
• Keypad Lock
• Battery Type: Lithium-lon Rechargeable
• Low Battery Alert
• Battery strength Indicator
• Auto Battery Save
• Roger Beep
• Scramble On/Off
¹ Refer to p.30 - p.32 for channel information
2
The radio meets waterproof (IPX7/JIS7) specifications only
when the battery, the antenna and accessory MIC jack cap are
correctly installed. The radio won't retain its waterproof rating
when the accessory Speaker MIC/Earphone MIC are connected.
UNIDEN UH835S/UH850S
• Waterproof (meets
2
IPX7/JIS7 waterproof specications)
38 Built-in CTCSS codes & additional 104 DCS codes
• Backlit LCD Display
• One-Touch Smart Key
• Voice Enhancer (EQL)
•
•
• Instant Channel
•
• 10 Call Tone
•

ITEM
UH835S UH850S
UH850S-2TP
UH850S UHF Radio
-- 1 2
UH835S UHF Radio
1 -- --
Li-Ion Battery Pack (2220mAh)
(BP850)
-- 1 2
Li-Ion Battery Pack (2000mAh)
(BP835)
1 -- --
Antenna
1 1 2
Belt Clip
1 1 2
Drop-In Charger (DT850A/
DT850B)
1 1 1
AC Adaptor (PS-S12C0BL1)
1 1 1
Cigarette Lighter Lead for
Charger
-- 1 --
External Speaker MIC. (SM-800)
-- 1 2
VOX Earpiece MIC. (EM-800)
1 1 2
Owner’s Manual
1 1 1
Cigarette Cradle Charger
(CK-850)
-- -- 1
Magnetic Antenna (AT-078)
-- -- 1
Magnetic Antenna manual
-- -- 1
Swivel-Type Belt Clip
-- --
--
5
Included in your Package
Handheld UHF-CB Transceiver
If any of these items are missing from the box, contact your
NOTE
place of purchase, immediately.
Li-Ion Battery Pack (2850mAh)
(BP-850L)
UH850S-DLX
Carry Case
-- -- 1
1
--
--
--
1
1
1
1
--
1
1
1
1
1
1
1
--
-- --
1
--

6
Controls and Indicators
Handheld UHF-CB Transceiver
UNIDEN UH835S/UH850S
1 Antenna
2 MON/Keylock
3 Rotary Vol/Power Knob
4 Speaker
5 Accy Speaker MIC Jack
6 Microphone
7 LCD Display
8 SCAN [OS/GS/MS] key
9 UP and DOWN Keys
10 LED
11 MENU [MEM] Key
12 PTT KEY
13 SMART KEY
A Transmit
B Channel Indicator
C Scan CH Memory
D Equalizer indicator
E Group Scan and
Master Scan
F Key Lock
G Master Scan
H Battery Indicator
I Scanning
J VOX
K Busy Channel
Lockout
L CTCSS/DCS
Code Indicator
M Digitally Coded
Squelch
N Continuous Tone
coded Squelch
System
O Scramble
P Priority Watch
Q High Power
1
2
3
4
5
6
7
8
9
10
11
12
13
A B C D E F HG
I
J
K
Q
P
O
N M L

7
Getting Started
Handheld UHF-CB
Connect
Transceiver
Drop-in Charger with AC Adaptor
Plug
one end of the AC adaptor into the wall
outlet and the other end into the drop-in charger.
Connect DC Charging Adaptor
to Cigarette Lighter Jack
OR...
Attaching the Antenna
Attach the antenna to the radio.
Be sure the antenna is firmly seated.
The drop-in charger and DC charging adaptor are not water
NOTE
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)
Input Voltage (Cigarette Lead Charger): +12VDC to
+24VDC. If Charge LED didn’t light up, please confirm the
above temperature.
UNIDEN UH835S/UH850S

8
Getting Started
Attaching the Battery Pack
1. Place the battery pack onto the back
Handheld UHF-CB Transceiver
of the radio. It will only t in one way.
2. Snap the battery release clip until it clicks.
Be sure the battery pack f its tightly against
the radio body.
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.
UNIDEN UH835S/UH850S
To Remove the Belt Clip:
Pinch and hold the belt clip latch and then slide the belt clip up
and out of the catch.

9
Getting Started
Your radio is powered by a specially designed Lithium Ion battery pack.
Handheld UHF-CB Transceiver
• Before operating the radio, charge the Lithium Ion battery pack for
- up to 4 hours (1-slot type)
- up to 8 hours (2-slot type)
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 in the
drop-in charger!
• 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.

Getting
Started
10
Handheld UHF-CB Transceiver
Battery Level Display
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
Battery 100% full
LEVEL 2
Low Battery
At
LEVEL 2, low battery alert will be sounded every 15 minutes.
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.
Recharge the battery at any time. When the battery is
NOTE
empty, it will take up to 3 hours to fully charge.
Battery Life
UH850S-DLX (2850mA battery):
- up to 39 hours (Low Power*)/up to 23 hours (High Power)
UH850S/UH850S-2TP (2220mA battery):
- up to 30 hours (Low Power*)/up to 18 hours (High Power)
UH835S (2000mA battery)
- up to 27 hours (Low Power*)/up to 18 hours (High Power)
*This is based on the following Duty Cycle:
Transmit (Low Power)
5%
Receive 5%
Stand-by 90%
Battery approx.
40% capacity
LEVEL 1
(flashing)
Empty Battery
UNIDEN UH835S/UH850S
LEVEL 3

11
Handheld UHF-CB Transceiver
Getting Started
UNIDEN UH835S/UH850S
Accessory Jack Cover
Make sure the Accessory Jack Cover
is rmly pushed in to maintain submersible
rating.
Connecting the SPKR/MIC
Release
the Accessory Jack Cover to plug
in the SPKR/MIC.
LED Status
LED What it Indicates
Green Start Up/Power on
Green Monitor mode
Green Receiving Signal
Red Transmitting signal
LED