Baofeng UV-3R Mark II Service manual

Baofeng UV-3R Mark II Reference
Table of Contents
20 October 2011 i
CONTROL DEFINITIONS .......................................................1
[DIAL]Knob..........................................................................1
[PTT] Switch .........................................................................1
[VOL/MON] Key ..................................................................1
[ON/OFF] ..............................................................................1
[F/ALERT] ............................................................................1
[MENU/LOCK].....................................................................1
[UV/MODE]..........................................................................2
[LAMP/FM]...........................................................................2
F+[MENU/LOCK] ................................................................2
F+[UV/MODE] .....................................................................2
F+[DIAL] ..............................................................................2
[VOL/MON]+ [DIAL]...........................................................2
Tone Calling...............................................................................2
Restore to Default Factory Setting .............................................2
MENU DESCRIPTION .............................................................3
RXCODE ...................................................................................4
TXCODE....................................................................................4
SQL (SQUELCH ADJUSTMENT) ...........................................5
LIGHT (LCD ILLUMINATION ON/KEY/OFF)......................5
KTONE (KEYPAD BEEPER ON/OFF)....................................6
VOX(VOICE OPERATED TRANSMISSION) ........................6
POWER (HIGH/LOW RF OUTPUT POWER SELECTION) ..7
DW (DUAL WATCH FEATURE) ............................................7
STEP (Channel Spacing Selection) ............................................8
OFFSET (Repeater Operation)...................................................8
SHIFT (Repeater Shifts).............................................................8
STE (Tail Tone Elimination)......................................................9
W/N (Wide/Narrow Band Selection)..........................................9
SAVE (Battery Saver)................................................................9

Baofeng UV-3R Mark II Reference
Table of Contents Continued
ii 20 October 2011
TOT (Time-out Timer).............................................................10
SCANM (Scan Mode)..............................................................10
ELAYM (Repeater Sound Response).......................................11
BCLO (Busy Channel Lock-out)..............................................11
MEMORY CHANNEL STORAGE (Memory Channels 01-99)
..................................................................................................12
EMERGENCY ALARM FEATURE.......................................12
FM RADIO FUNCTION .........................................................13
FM RADIO SCANNING.........................................................13

Baofeng UV-3R Mark II Reference 1
CONTROL DEFINITIONS
[DIAL]Knob
The main tuning Dial is used for setting the operating
frequency, and is used for audio volume level, menu
selections, and other adjustments. To rotate this Dial knob,
pull the knob to unlock the mechanical dial lock, and then
rotate the Dial knob.
[PTT] Switch
Press this switch to transmit, and release it to receive,
[VOL/MON] Key
Press and Hold the key to disable background noise
squelching action to hear very weak signals near the
background noise level.
Just press the key; then rotate the DIAL knob to adjust
[ON/OFF]
Press and hold this key for two seconds to toggle the
transceiver's power on and off.
[F/ALERT]
Press to activate the 'Alternate' key function, such as setting
Scanning, Memory Write Mode etc. Press and hold the
switch to activate the Alarm function.
[MENU/LOCK]
Momentarily press the key, to enter the MENU. Rotating the
DIAL knob, will access different MENU functions. Press
and Hold the key to activate the Key Lock or to disable the
Key Lock. (Note: After the keypad is locked, [F/ALERT],
[UV MODE], [LAMP/FM] keys will be locked.)

2June 20, 2012
[UV/MODE]
Momentarily press to switch the VFO between UHF Mode
and VHF Mode.
Press and Hold to switch between VFO and Memory.
[LAMP/FM]
Momentarily press to light the Torch.
Press and Hold to activate or deactivate the FM Radio
function.
F+[MENU/LOCK]
Press the F/ALERT], then press [MENU/LOCK], to
Activate Scanning Function.
F+[UV/MODE]
Press the F/ALERT], then press F+[UV/MODE], to activate
the “Memory Write” mode.
F+[DIAL]
Press [F/ALERT]; then rotate the [DIAL] knob, to increase
or decrease the frequency at ± 1MHz.
[VOL/MON]+ [DIAL]
Press [VOL/MON]; then rotate the [DIAL] knob, to adjust
volume level.
Tone Calling
Press and hold in the button [ PTT ] and [VOL/MON] to enter
the Tone Calling Mode(1750Hz). The transceiver will send out
a 1750Hz signal. Release the button [VOL/MON] to exit.
Restore to Default Factory Setting
Press and hold the key [ ON/OFF ] + [ F/ALERT ] , then Power
ON, the transceiver will restore to the default factory settings.
Factory Default Setting are: 400.000MHz, No CTCSS/DCS,
Low Output power, Battery Save, Volume Level 5, SQ 5, Key
Tone ON, other settings are OFF.

Baofeng UV-3R Mark II Reference 3
MENU DESCRIPTION
Menu
No Description Settings
1 RXCODE OFF'CTCSS, DCS
2 TXCODE OFF'CTCSS, DCS
3 SQL (Squelch) 0---9
4 LIGHT (LCD Illumination) OFF/ON /Key
5 K TONE (Keypad Beeper) OFF--ON
6 VOX OFF/1--9
7 POWER (RF Output Power) HIGH/LOW
8 DW (Dual Watch/UHF&VHF) ON/OFF
9 STEP 12.5/25KHz
10 OFFSET
0---37.995/0---69.995
11 SHIFT 0/-/+
12 STE (Tail Tone Elimination) ON/OFF
13 W/N (Wide Band/Narrow Band) WIDE/NARROW
14 SAVE (Battery Saver) ON/OFF
15 TOT (Time Out Timer)
OFF/30/60/90/120/150/180S
16 SCANM (Scan Mode) TO/CO
17 RELAYM (Repeater Sound Response) ON/OFF
18 BCLO (Busy Channel Lock-out) ON/OFF
19 PRI (Priority Channel Scanning) ON/OFF

4June 20, 2012
RXCODE
Use the selective call to ignore unwanted calls from other
stations who are using the same frequency.
1) Press [ MENU/LOCK ] then rotate the [ DIAL ] knob to
MENU [1], RXCODE
2) Press the [ U/V ] key to enter the set mode.
3) Clockwise or counterclockwise rotation of [ DIAL ] knob to
select from OFF /67.0-754N,
Press [ MENU/LOCK ] again, to select the code (Positive or
negative), such as 023N---0231.
OFF —67.0 —I-023N —1.0231
NOTE: [CTCSS: 67Hz---254.1Hz (50 groups); DCS: 023N-
754N (104 groups)]
4) Press [ U/V ] key to save the setting.
5) Press [ MENU/LOCK ] or [ PTT ] to EXIT to normal
operation.
TXCODE
Set the transmitting signal according to the below instructions:
1) Press [ MENU/LOCK ] then rotate the [ DIAL ] knob to
MENU [2], TXCODE
2) Press the [ U/V ] key to enter the set mode.
3) Clockwise or counterclockwise rotation of [ DIAL ] knob to
select from OFF /67.0-754N,
Press [ MENU/LOCK ] again, to select the code (Positive or
negative), such as 023N---0231.
OFF —67.0 —I-023N —1.0231
NOTE: [CTCSS: 67Hz---254.1Hz (50 groups); DCS: 023N-
754N (104 groups)]
4) Press the [ U/V ] key to save the setting.
5) Press [ MENU/LOCK ] or [ PTT ] to EXIT to normal
operation.

Baofeng UV-3R Mark II Reference 5
SQL (SQUELCH ADJUSTMENT)
Squelch System allows you to mute the background noise when
no signal being received. The Squelch system also significantly
reduces battery current consumption.
1) Press [ MENU/LOCK ] then rotate the [ DIAL ] knob to
MENU [3], SQL
2) Press the [ U/V ] key to see the current setting level.
3) Clockwise or counterclockwise rotation of [ DIAL ] knob to
adjust between 0/1/2/3/4/5/6/7/8/9. Select the level at which the
background noise is just eliminated when there is no signal.
4) Press the [ U/V ] key to save the setting.
5) Press [ MENU/LOCK ] or [ PTT ] to EXIT to normal
operation.
LIGHT (LCD ILLUMINATION ON/KEY/OFF)
UV-3R includes a reddish illumination lamp which aids in
nighttime operation. The red illumination yields clear viewing
of the display in a dark environment, with minimal degradation
of your night vision. Three options for activating the lamp are
provided:
Key: Illuminates the LCD when any key pressed.
ON: Illuminates the LCD continuously.
OFF: Disables the LCD lamp.
Here is the procedure for setting up the Lamp mode:
1) Press [ MENU/LOCK ] then rotate the [ DIAL ] knob to
MENU [4], LIGHT.
2) Press the [ U/V ] key to enter the set mode.
3) Clockwise or counterclockwise rotation of the [ DIAL ] knob
to set ON/OFF/Key.
4) Press the [ U/V ] key to save the setting.
5) Press [ MENU/LOCK ] or [ PTT ] , EXIT to normal
operation.

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BEEP (KEYPAD BEEPER ON/OFF)
You may disable the Beeper in accordance with the following
instructions:
1) Press [ MENU/LOCK ] then rotate the [ DIAL ] knob to
MENU [5], BEEP
2) Press the [ U/V ] key to enter the set mode.
3) Clockwise or counterclockwise rotation of [ DIAL ] knob to
set ON/OFF.
4) Press the [ U/V ] key to save the setting.
5) Press [ MENU/LOCK ] or PTT ] , EXIT to normal operation.
(ON-The beeper being activated, LCD displays icon. OFF-The
beeper being disabled.)
VOX(VOICE OPERATED TRANSMISSION)
VOX eliminates the necessity of manually switching POWER
(HIGH/LOW RF OUTPUT to the transmission Mode each time
you want to transmit. The transceiver automatically switches to
transmission mode when the VOX circuitry senses that you have
begun speaking into the microphone. Please set according to the
following instructions:
1) Press [ MENU/LOCK ] then rotate the [ DIAL ] knob to
MENU [6], VOX.
2) Press the [ U/V ] key to enter the set mode.
3) Clockwise or counterclockwise rotation of [ DIAL ] knob to
set: OFF/1/2/3/4/5/6/7/8/9.
4) Press the [ U/V ] key to save the setting.
5) Press [ MENU/LOCK ] or [ PTT ] to EXIT to normal
operation.
NOTE:
Grade 7-9: the Most Sensitive VOX Gain Level - Set under
silent conditions.
Grade 4-6: the Medium Sensitive VOX Gain Level —Set under
common conditions.

Baofeng UV-3R Mark II Reference 7
Grade1-3: the Least Sensitive VOX Gain Level - Set under too
much noise conditions.
When VOX function is activated, the LCD will display the
VOX ICON.
POWER (HIGH/LOW RF OUTPUT POWER
SELECTION)
Select the High/Low RF Output Power. Please set according to
the following instructions:
1) Press [ MENU/LOCK ] then rotate the [ DIAL ] knob to
MENU [7], POWER.
2) Press the [ U/V ] key to enter the set mode.
3) Clockwise or counterclockwise rotation of [ DIAL ] knob to
set: HIGH/LOW.
4) Press the [ U/V ] key to save the setting.
5) Press [ MENU/LOCK ] or [ PTT ] to EXIT to normal
operation. Note: When set to LOW output power, the LCD will
display the [ LOW ] ICON, and not display the ICON when set
to HIGH output power.
DW (DUAL WATCH FEATURE)
The transceiver's Scanning features include a two- channel
scanning capability, which allows you to operate between UHF
channel and VHF channel in the VFO mode, while periodically
checking a user-defined channel for activity. If one channel is
received the signal, the scanner will pause on that channel.
Please activate the DW feature according to the following:
1) Press [ MENU/LOCK ] then rotate the [ DIAL ] knob to
MENU [8], DW
2) Press the [ U/V ] key to enter the set mode.
3) Clockwise or counterclockwise rotation of [ DIAL ] knob to
set: OFF (disables the Dual Watch feature ON (activates the
Dual Watch feature).
4) Press the [ U/V ] key to save the setting.

8June 20, 2012
5) Press [ MENU/LOCK ] or [ PTT ] to EXIT to normal
operation.
STEP (Channel Spacing Selection)
The UV-3R's frequency synthesizer provides the option of
utilizing channel steps of 12.5/25KHz per step (plus optional
values differ depending on the band selected).
1) Press [ MENU/LOCK ] then rotate the [ DIAL ] knob to
MENU [9], STEP
2) Press the [ U/V ] key to enter the set mode.
3) Clockwise or counterclockwise rotation of [ DIAL ] knob to
select the new frequency step size.
4) Press the [ U/V ] key to save the setting.
5) Press [ MENU/LOCK ] or [ PTT ] to EXIT to normal
operation.
OFFSET (Repeater Operation)
1) Press [ MENU/LOCK ] then rotate the [ DIAL ] knob to
MENU [10], OFFSET
2) Press the [ U/V ] key to enter the set mode.
3) Clockwise or counterclockwise rotation of [ DIAL ] knob to
set the offset frequency (0- 37.995M10---69.995M).
4) Press the [ U/V ] key to save the setting.
5) Press [ MENU/LOCK ] or [ PTT ] to EXIT to normal
operation.
SHIFT (Repeater Shifts)
Depending on the part of the band in which you are operating,
the repeater shift may be either downward (-) or upward (+).
One of these icons will appear at the top of the LCD when
repeater shifts have been enabled.
1) Press [ MENU/LOCK ] then rotate the [ DIAL ] knob to
MENU [11], SHIFT
2) Press the [ U/V ] key to enter the set mode.

Baofeng UV-3R Mark II Reference 9
3) Clockwise or counterclockwise rotation of [ DIAL ] knob to
select the repeater shifts: 0/-/+.
4) Press the [ U/V ] key to save the setting.
5) Press [ MENU/LOCK ] or [ PTT ] to EXIT to normal
operation.
STE (Tail Tone Elimination)
To eliminate the annoying audio caused by carrier wave
disappearing after the transmitter ends the communication. you
should enable the Tail Tone Elimination. On the contrary, if you
want communication via the repeater, you should disable the
Tail Tone Elimination.
1) Press [ MENU/LOCK ] then rotate the [ DIAL ] knob to
MENU [12], STE.
2) Press the [ U/V ] key to enter the set mode.
3) Clockwise or counterclockwise rotation of [ DIAL ] knob to
select the STE: ON/OFF.
4) Press the [ U/V ] key to save the setting.
5) Press [ MENU/LOCK ] or [ PTT ] , EXIT to normal
operation.
W/N (Wide/Narrow Band Selection)
1) Press [ MENU/LOCK ] then rotate the [ DIAL ] knob to
MENU [13], W/N
2) Press the [ U/V ] key to enter the set mode.
3) Clockwise or counterclockwise rotation of [ DIAL ] knob to
select the WIDE/NARROW.
4) Press the [ U/V ] key to save the setting.
5) Press [ MENU/LOCK ] or [ PTT ] to EXIT to normal
operation.
SAVE (Battery Saver)
The UV-3R includes a useful Transmit Battery Saver, which
will automatically lower the power output level when the last
signal received was very strong. For example, when you are in

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the immediate vicinity of a repeater station, there generally is no
reason to use the high power output in order to achieve full
quieting access to the repeater. With the transmit battery saver,
the automatic selection of Low Power operation conserves
battery drain significantly.
To activate the Transmit Battery Saver:
1) Press [ MENU/LOCK ] then rotate the [ DIAL ] knob to
MENU [14], SAVE
2) Press the [ U/V ] key to enter the set mode.
3) Clockwise or counterclockwise rotation of [ DIAL ] knob to
select the SAVE: ON/OFF
4) Press the [ U/V ] key to save the setting.
5) Press [ MENU/LOCK ] or [ PTT ] to EXIT to normal
operation.
TOT (Time-out Timer)
The TOT Feature provides a safety switch, which limits
transmission time to a preprogrammed value. The TOT default
is 180 seconds.
1) Press [ MENU/LOCK ] then rotate the [ DIAL ] knob to
MENU [15], TOT.
2) Press the [ U/V ] key to enter the set mode.
3) Clockwise or counterclockwise rotation of [ DIAL ] knob to
select the TOT: OFF/30S/60S/90S/120S/150S/180S
4) Press the [ U/V ] key to save the setting.
5) Press [ MENU/LOCK ] or [ PTT ] to EXIT to normal
operation.
SCANM (Scan Mode)
The UV-3R allows you to scan the memory channels, an entire
operating band, or a portion of that band. It will halt on signals
encountered, so you can talk to the station on that frequency, if
you like. To select the scanning mode, please see below:
1) Press [ MENU/LOCK ] then rotate the [ DIAL ] knob to
MENU [16], SCANM

Baofeng UV-3R Mark II Reference 11
2) Press the [ U/V ] key to enter the set mode.
3) Clockwise or counterclockwise rotation of [ DIAL ] knob to
select the SCANM: TO/C0.
4) Press the [ U/V ] key to save the setting.
5) Press [ MENU/LOCK ] or [ PTT ] to EXIT to normal
operation.
ELAYM (Repeater Sound Response)
The UV-3R comes with the Repeater Sound Response feature.
When the feature is activated, the handheld transceiver will hear
the sound from the repeater that means the transceiver is
working via the repeater. Please see below to activate the
features:
1) Press [ MENU/LOCK ] then rotate the [ DIAL ] knob to
MENU [17], RELAYM.
2) Press the [ U/V ] key to enter the set mode.
3) Clockwise or counterclockwise rotation of [ DIAL ] knob to
select the RELAYM: ON/OFF.
4) Press the [ U/V ] key to save the setting.
5) Press [ MENU/LOCK ] or [ PTT ] to EXIT to normal
operation.
BCLO (Busy Channel Lock-out)
The BCLO feature prevents the radio's transmitter from being
activated if a signal strong enough to break through the 'noise'
squelch is present. On a frequency where stations using different
CTCSS or DCS codes may be active, BCLO prevents you from
disrupting their communications (because your radio may be
muted by its own Tone Decoder). The default setting for the
BCLO is OFF. The below instruction is the procedure to
activate the BCLO:
1) Press [ MENU/LOCK ] then rotate the [ DIAL ] knob to
MENU [18], BCLO.
2) Press the [ U/V ] key to enter the set mode.

12 June 20, 2012
3) Clockwise or counterclockwise rotation of [ DIAL ] knob to
select the BCLO: ON/OFF.
4) Press the [ U/V ] key to save the setting.
5) Press [ MENU/LOCK ] or [ PTT ] to EXIT to normal
operation..
MEMORY CHANNEL STORAGE (Memory Channels 01-
99)
•Select the desired frequency while operating in the VFO mode.
Be sure to set up any desired CTCSS or DCS tones, as well as
any repeater offset.
•Press [ F/ALERT ] button, then press [ U/V ] key, Channel 01-
99 will flash on the LCD, rotate [ DIAL ] knob to store the
channel between channel 01-99.
•Press [ U/V ] key to save the setting.
•Repeat the process above, to store other channels.
(Note: Repeater offset frequency should be set via
programming software.)
EMERGENCY ALARM FEATURE
Press and hold the [ F/ALERT ] button about 1/2 seconds, come
to the Emergency Alarm Mode, emergency alarm will be heard,
press [PTT ] button, EXIT to normal operation.

Baofeng UV-3R Mark II Reference 13
FM RADIO FUNCTION
Press and hold the [LAMP] button to activate the FM Radio
Mode.
Press and hold the [LAMP] button again, to EXIT the FM Radio
Mode.
Rotate the [ DIAL ] knob to adjust the frequency. (The FM
broadcast coverage is 87.0MHz to 108.0MHz, Frequency step as
100KHz).
Press and hold the [ U/V ] to switch the FM radio frequency
mode and the FM radio save channel mode.
To save the FM radio channel:
1) Under the FM radio frequency mode, set the frequency you
want to save.
2) Press the [ F/ALERT ] button, and then press the [ U/V ]
button.
3) Rotate the [ DIAL ] to the channel number where you want to
save the frequency.
4) Press the [ U/V ] button to confirm saving.
In the FM radio mode, the communication between transceivers
is priority. That means in the FM radio mode, when the signal
come, the transceiver will automatically exit the FM radio
mode.
FM RADIO SCANNING
Radio mode, press [ F/ALERT ] button, then press [
MENU/LOCK ] key to scan the complete band. Clockwise or
counterclockwise rotation of [ DIAL ] knob to scan the band
from low to high or from high to low. When searches the certain
channel, the scanning will stop at the channel. Rotate the [
DIAL ] knob, continuously to scan from low to high or from
high to low. Press any key to exit the scanning