Baofeng UV-81C User manual

UV-81C
5 Watt 80 Channel UHF CB Radio
PLEASE NOTE: CHANNELS 1 TO 8 ARE PROGRAMMED
FOR REPEATER USAGE ONLY AND USABLE ONLY IF A
REPEATER IS AVAILABLE IN YOUR AREA.
USER
INSTRUCTIONS
Thank you for purchasing your new UV-81C Portable
Radio. This fully pre-programmed radio is easy to use
and designed to deliver you instant and reliable
communications at peak efficiency. Please read this
manual carefully before use. The information will help
you to enjoy maximum performance from your radio.
Channel Description
1 Ch1 Repeater (Semi Duplex)
2 Ch2 Repeater (Semi Duplex)
3 Ch3 Repeater (Semi Duplex)
4 Ch4 Repeater (Semi Duplex)
5 Ch5 Repeater (Semi Duplex)
6 Ch6 Repeater (Semi Duplex)
7 Ch7 Repeater (Semi Duplex)
8 Ch8 Repeater (Semi Duplex)
9 Ch9 Simplex
10 Ch10 Simplex - 4WD / Off-road
11 Ch11 Simplex - Call channel
12 Ch12 Simplex
13 Ch13 Simplex
14 Ch14 Simplex
15 Ch15 Simplex
16 Ch16 Simplex
17 Ch17 Simplex
18 Ch18 Simplex - Motor-homes
19 Ch19 Simplex
20 Ch20 Simplex
21 Ch21 Simplex
22 Disabled - Telemetry Only
23 Disabled - Telemetry Only
24 Ch24 Simplex
25 Ch25 Simplex
26 Ch26 Simplex
27 Ch27 Simplex
28 Ch28 Simplex
29 Ch28 Simplex
30 Ch28 Simplex
31 Ch1 Repeater Input
32 Ch2 Repeater Input
33 Ch3 Repeater Input
34 Ch4 Repeater Input
35 Ch5 Repeater Input
36 Ch6 Repeater Input
37 Ch7 Repeater Input
38 Ch8 Repeater Input
39 Ch39 Simplex
40 Ch40 Simplex –Road Channel
41 Ch41 Simplex
42 Ch42 Simplex
43 Ch43 Simplex
44 Ch44 Simplex
45 Ch45 Simplex
46 Ch46 Simplex
47 Ch47 Simplex
48 Ch48 Simplex
49 Ch49 Simplex
50 Ch50 Simplex
51 Ch51 Simplex
52 Ch52 Simplex
53 Ch53 Simplex
54 Ch54 Simplex
55 Ch55 Simplex
56 Ch56 Simplex
57 Ch57 Simplex
58 Ch58 Simplex
59 Ch59 Simplex
60 Ch60 Simplex
61 Disabled - Telemetry Only
62 Disabled - Telemetry Only
63 Disabled - Telemetry Only
64 Ch64 Simplex
65 Ch65 Simplex
66 Ch66 Simplex
67 Ch67 Simplex
68 Ch68 Simplex
69 Ch69 Simplex
70 Ch70 Simplex
71 Ch71 Simplex
72 Ch72 Simplex
73 Ch73 Simplex
74 Ch74 Simplex
75 Ch75 Simplex
76 Ch76 Simplex
77 Ch77 Simplex
78 Ch78 Simplex
79 Ch79 Simplex
80 Ch80 Simplex
With Voice Prompts
www.techoman.co.nz

1. Equipment
2. Accessories
3. Safety Warnings
4. Important Information
5. About UHF CB Radio
6. Unusable Channels
7. Fitting Battery
8. Battery Charging
9. Battery Tips
10. Fitting Antenna
11. Channel Selector
12. Radio Overview
13. Radio Settings
14. Channels 1 to 8 for Repeater
15. Channel Scanning
16. FM Radio Receiver
17. Specifications
18. Channel Listing (back cover)
A full range of parts and accessories
available from www.techoman.co.nz
• Extended flexible antennas
• External whip antennas
• Vehicle antennas
• Additional batteries (standard and high
capacity)
• Earpiece/microphones
• Tactical headset/microphones
• Handheld microphone/speakers
• Handheld microphone/speaker/antennas
• Charger cradles and USB cords
• Waterproof bag covers
• Car cigarette lighter charge cables
• Antenna tuning/power meters, and more
• This radio is a transmitting device.
• When transmitting, keep the antenna more
than 25 mm from any part of the head or
body.
• Do not transmit near flammable or
explosive atmospheres.
• Do not allow children to operate a radio
transmitter unsupervised.
READ ALL INSTRUCTIONS carefully and
completely before operating your radio and
retain this manual for future reference.
NEVER connect the radio to a power source
other than the supplied battery. This may
damage your product.
DO NOT use your radio with a damaged
antenna.
AVOID storing or charging your radio in
direct sunlight.
CONTENTS
EQUIPMENT
ACCESSORIES
1
2
SAFETY WARNINGS
3
Press and hold on [MENU] key for 2 seconds
to enter function setting menu.
Press [UP] or [DOWN] button to step through
setting options:
1. Squelch level—default=3. 0=open
Setting with 9 needs the strongest sig-
nal
2. Saving mode—battery save mode (1 to
4). Receive sleep ratio for receive —
the higher number increases the re-
ceive sleep time but you may miss the
first few syllables before the receiver
operates. 1=1:1, 2=1:2, 3=1:3, 4=1:4
3. VOX—Select Voice Activated Swtch
level—off, 1 to 10 where 1 is low micro-
phone sensitivity and 10 is high sensi-
tivity
4. Dual Standby–Leave turned on for both
PTT buttons to work
5. BEEP—button beeping on or off
6. Voice Prompt Language—English and
Chinese selection
Your radio is programmed for channels 1
to 8 to work via a radio repeater if one is
available in your area. Otherwise use
channels 9 to 80 to talk direct
To activate channel scanning press and
hold the channel [UP] button.
The green light will flash when scanning
and radio will hold for a transmission
then continuing 2 sec’s after
transmission.
Press [[PTT1] or PTT2] to stop scanning.
Your radio has an FM Radio built in to
enjoy music, news etc that you can use
to step through FM radio stations.
Press [F] to switch on FM radio. After the
FM radio starts, press [UP] or [DOWN]
buttons to search FM radio stations. The
FM radio will automatically mute when
receiving incoming communication, then
turn back on when finished. To turn FM
radio off press the [M] button.
Voltage
• Battery Voltage: 7.4 Volts
Transmitter
• Output Power: 5 Watts (high)/1 Watt
(low)
• Transmission: Narrow Band FM (F3E)
• Frequency Range: 476.425 to
477.4125 MHz
• Maximum Frequency Deviation:
2.5kHz
• Adjacent channel power: <-60dB
Receiver
• Sensitivity: -122dBm(12dB SINAD)
• Audio Power: 1 W
CHANNELS 1 TO 8
14
CHANNEL SCANNING
15
FM RADIO RECEIVER
16
IMPORTANT
4
RADIO SETTINGS
13
SPECIFICATIONS
17

UNUSABLE CHANNELS
6
Press the [ UP ] or [ DOWN ] to select the
desired Channel you want. (75 channels)
The voice prompt will indicate your selected
channel number.
1. Antenna—SMA male 50 ohm
antenna connector
2. [MENU] button—Press and hold
down for 2 seconds to enter function
setting menu
3. [UP] button— Press to step up to
next channel. Press and hold to
enter channel scan mode. Press
again to cancel scanning mode.
4. DOWN] button—Press to step down
to next channel. Press and hold for
channel stepping down fast.
5. [EXIT/LOCK] button—Press and
hold for 2 seconds to lock or 2
seconds to unlock the keypad
6. Knob (ON/OFF/Volume) - Power on/
off and audio speaker volume
7. Flash light—Press [M] button to
switch on LED light
8. Speaker
9. Microphone
10. Belt Clip Mounting
11. Press to Talk (PTT1) - Press to
transmit
12. Press to Talk (PTT2) - Press to
transmit
13. [F] button—press for FM radio.
Press and hold for emergency call/
alarm. This will also transmit the
alarm to other radios on the channel.
Press [F] button or [PTT] to switch
off. Another user can respond to the
alarm by calling the originator on the
channel.
14. [M] button—press for LED light.
Press and hold for for channel
monitor (open squelch)
15. Hand strap hole
16. Microphone and Speaker Sockets
(must use a Baofeng/Kenwood
external microphone/earpiece with K
type connector
17. Indicator lights—Green for receive,
red for transmit
RADIO OVERVIEW
12
CHANNEL SELECTOR
11
converse on the newer channels 41 –80.
The newer narrowband radios will be able to
converse with all older 40 channel wideband
radios on all channels 1 to 40 as well as the
newer channels allocated from 41 to 80.
The mixing of narrowband and wideband
radios in the same spectrum can cause
some possible operating issues of
interference and varying levels of received
volume.
When a new narrowband radio receives a
transmission from an older wideband radio
the speech may sound loud and distorted –
simply adjust your radio volume for best
performance. When an older wideband radio
receives a signal from a new narrowband
radio, the speech may sound quiet - simply
adjust your radio volume for best
performance.
Depending on how close your receiving radio
is to another transmitting radio, there can be
interference from the transmitting radio if it is
using a channel adjacent to the channel you
are listening to. Simply try going up or down
a few channels from the currently selected
channel.
ACMA regulations have allocated channels
22, 23, 61, 62 & 63 for telemetry only
applications and have prohibited the
transmission of speech on these channels.
Consequently the UV-81C will skip these
channels
22, 23, 61, 62 & 63
AVOID storing or using your radio where
temperatures are below ‑20°C or above
+60°C.
ALWAYS charge your radio at normal room
temperature.
ONLY use Baofeng approved rechargeable
batteries with the supplied charger.
ALWAYS switch off your radio where notices
restrict the use of two‑way radio or mobile
telephones.
AVOID exposing your radio to water,
moisture or dust. It is not waterproof !
DO NOT attempt to modify your radio in any
way.
The use of the Citizen Band radio service is
licensed in New Zealand by the Ministry of
Economic Development New Zealand
(MED). Users can use these Citizens Band
channels for free but are subject to
operational conditions of the licence.
Your UV-81C meets the latest UHF CB 477
MHz band plan with 80 channels —standard
AS/NZS 4365:2011
The same amount of spectrum is available;
however, radio transceivers can now operate
in a narrower bandwidth and hence use less
spectrum. These radios are generally
referred to as narrowband or 12.5 kHz
radios. By using 12.5 kHz channel spacing
instead of 25 kHz, the 40 channels originally
allocated has now expanded to 80 channels
thereby doubling the channel capacity and
relieving congestion in the UHF CB band.
Original 40 channel wideband radios will
continue to operate on the original 40
channels, however they will not be able to
ABOUT UHF CB RADIO
5

TO INSTALL BATTERY
Place the battery bottom about 1 to 2 cm
below the bottom of the radio's body.
Make sure the battery is in parallel and in
good contact with the aluminium chassis.
Align the battery with the guide rails on the
aluminium chassis and slide it upwards until
a 'click' is heard.
TO REMOVE BATTERY
Turn off the radio before removing the
battery. Squeeze the battery latches, at the
top of the battery in the direction indicated by
the arrows.
Slide down the battery for about 1 to 2
centimetres, and then remove the battery
from the radio's body.
Use only the charger specified by the
manufacturer. The charger's LED indicates
the charging progress.
WARNING: Turn off the radio before
charging otherwise battery will not fully
charge.
Please follow these steps:
1. Plug the AC connector of the power pack
into the AC outlet socket.
2. Place the radio with the battery attached,
or the battery alone, in the charger.
3. Make sure the battery is in good contact
with the charging terminals. The charging
process initiates when the red LED lights.
4. The green LED lights indicating the
battery is fully charged. Remove the
radio with the battery attached or the
battery alone from the charger.
BATTERY CHARGING
8
FITTING BATTERY
7 BATTERY TIPS
9 BATTERY STORAGE:
1. Fully charge a battery before you store it
for a long time to avoid battery damage
due to over-discharge.
2. Recharge a battery after 6 months
storage to avoid battery capacity
reduction due to over-discharge.
3. Store your battery in a cool and dry place
under room temperature to reduce self-
discharge.
Install the antenna as shown as below:
NOTE: - When installing the antenna,
don't rotate it by its top,. Hold it by its
base and turn clockwise. Don’t over-
tighten.
If you use an external antenna, make
sure the 'SWR' is about 1.5:1 or less to
avoid damage to the transceiver's final
transistors.
NEVER TRANSMIT
WITHOUT AN ANTENNA
FITTING ANTENNA
10
1. When your radio battery is getting low a
voice prompt will indicate ‘Battery Low’.
2. When charging your battery, keep it at a
temperature between 5C and 40C.
Temperature out of the limit may cause
battery leakage or damage.
3. When charging a battery attached to a
radio, turn the radio off to ensure a full
charge.
4. Do not turn off the power supply or
remove the battery when charging a
battery.
5. Never charge a battery that is wet. Dry it
with a soft cloth prior to charging.
6. The battery will eventually wear out when
the operating time (talk-time and standby
time) is noticeably shorter than normal
performance. It is time to buy a new
battery.
INITIAL USE
New batteries are shipped uncharged from
the factory. Charge a new battery for 5 hours
before initial use. The maximum battery
capacity and performance is achieved after
three full charge/discharge cycles. If you
notice the battery power runs low, please
recharge the battery.
TO PROLONG BATTERY LIFE:
1. Battery performance will be greatly
decreased at a temperature below 0C . A
spare battery is necessary in cold
weather. A cold battery is unable to work
in this situation will work when back to
room temperature.
2. Dust on the battery contacts may cause
the battery to not work or charge. Please
use a clean dry cloth to wipe them before
attaching the battery to the radio.