Changtaiwei Electronics K-12 User manual

K-12
Walkie Talkie
User Guide
US

12
3
8
4
5
6
7
9
10
11
12
13
14
15
1
Backlit LCD Display
NOAA/Scan Button
Down Button
Microphone
Speaker
8 External Speaker/
Microphone/USB
Charge Jack
. Antenna
2. Volume Knob
3.
4.
5.
6.
7.
.
9. Up Button
10.Menu/Power Button
11.Call/Lock Button
12. PTT(Pull to talk) Button
13. Wrist Strap Connection
14. Belt Clip
15. Battery Compartment
CAUTION
Read this operating instruction carefully before
using your two way radio, including the part on
Product Safety and Important Notice.

Product Features
Product number
Frequency range
Channel number
Channel spacing
Working voltage
Frequency stability
Operating temperature range
The antenna impedance
Overall dimensions
Weight
TECHNICAL PARAMETERS
Rf power
Modulation method
Noise and harmonic
Residual Radiation
Modulation distortion
Maximum deviation
K-12
FRS
22
12 5KHz.
4.5V.
± .2 5ppm
-10 ~40℃ ℃
50Ω
165 57 41mm* *
120g
2.0W
F3E
-40dB
≤-35dB
≤ %7
≤± 5KHz
TRANSMITER
The sensitivity
Modulation receiver bandwidth
Adjacent selective
Intermodulation interference resistance
Spurious response inhibition
Audio output power
Audio distortion
≤ .0 2uV
±5KHz
≥40dB
≥35dB
≥70dB
≥300mW
≤ %8
RECEIVER
Product Features
Channel
1
2
3
4
5
6
7
8
9
10
11
Frequency(MHz) Frequency(MHz)
462 5625.
462 5875.
462 6125.
462 6375.
462 6625.
462 6875.
462 7125.
467 5625.
467 5875.
467 6125.
467 6375.
Channel
12
13
14
15
16
17
18
19
20
21
22
467 6625.
467 6875.
467 7125.
462 5500.
462 5750.
462 6000.
462 6250.
462 6500.
462 6750.
462 7000.
462 7250.

Features
• 22 Channels
• 10 Channel NOAA All
• Weather Alert
• 142 Privacy Codes
• Hands-Free Operation
(VOX)
• Scan
• Backlit LCD Display
• Call Alert
• Button Lock
• Speaker/Microphone/
Jack
• Roger Beep
• Battery/Power Saver
• Keystroke Tones
• Battery Level Indicator
• Low Battery Audible Alert
• Auto Squelch
• Belt Clip
Hazards Radio
(38 CTCSS codes/104 DCS codes)
Channels,privacy codes
Ten selectable tones
Selectable On/Off
•
USB Charge Jack
/
Vibration Alarm
Silent Paging
Product Features
Backlit LCD Display
15
14
1
2345
1112
13 10
9
8
6
7
1 Battery Level Indicator.
2 Roger Beep Icon.
3 VOX Icon.
4 Weather Icon.
5 Lock Icon.
6.Weather Alert Icon
7.Key Tone Icon
8.DCS CTCSS Icons/
9.Scan Icon
10 DCS CTCSS Privacy Code. /
Numbers
11 Power Saver Icon.
12 Vibration Alarm/Call Alert Icon.
13.Channel Numbers
14.Receive Transmit Icon/
15.Hi Low Power Icon/

Installing Batteries
For charging radios
To install or replace batteries:
1.
2.
3.
(Adpater/Batteries:Just for
batteries and adpater packaging option
1.To charge a single radio simply insert the
connector directly into the charge jack located on
the bottom of the radio
The radio will display flashing battery icon while
charging
Recommends your radio be turned off while being
charged
)
,
.
.
.
Remove the belt clip by pulling the tab and sliding it
up.
Pull the battery door down to release the battery
cover. Insert 3 "AA" batteries.
Put the battery cover back into place. Snap the lock
tab and belt clip back into place.
1.Do not mix old and new batteries
2.Do not mix alkaline, standard (carbon-zinc)
or rechargeable (nickel-cadmium) batteries.

Turning on Your Radio •
•
Press and hold the Menu/Power button until you hear
a series of audible tones indicating the radio is on.
Your radio is now in Standby mode,ready to receive
transmissions. The radio is always in Standby mode
except when the Talk, Call or Mode/Power buttons
are pressed.
Battery Low
Battery Low
When battery power is low, the final bar in the Battery
Low icon will blink and an audible tone will sound twice
before the radio shuts off. Your batteries should be
replaced or recharged, if using rechargeable batteries.
The radio will display flashing battery icon
while charging.
Auto Battery Save
Battery Save Mode If there are no transmissions within 6 seconds,
the radio will automatically switch to Battery Save
mode and the Power Saver icon will flash in the
display. This will not affect the radio’s ability to
receive incoming transmissions.
1. Press and hold the PTT button.
2. With the microphone about two inches (2.5-5 cm)
from your mouth, speak in a normal voice.
3. Release the PTT button when you are finished
talking and listen for a response.
You cannot receive incoming calls while pressing
the PTT button.
Both radios must be tuned to the same channel/
privacy code to communicate.
Communicating with Another Person
Quick Start
1. Press and hold the Menu/Power button to turn on your radio.
2. Press the Menu, Up or Down button to select a channel.Press the
Both radios must be tuned to the same
channel/privacy code to communicate.
3. Press and hold the PTT button while speaking into the
microphone.

To Select a Channel
Release the PTT button to receive incoming
transmissions. Your radio is always in Standby
mode while the PTT or Call buttons are not pressed.
Listening for a Response
To Adjust Volume
Rotate until you reach a comfortable
listening level. Rotate clockwise to
increase the volume or counterclockwise to decrease
the volume.
Volume Knob
Volume Knob
Press and release the Call button.
The other person will hear a two second call tone. This
tone is used only to establish voice communications.
See page 10 on how to select between ten call tone
settings.
Call Button
The Lock function locks the Up, Down, Scan and
Menu/Power buttons to prevent accidental operation.
To turn the lock on or off:
Press and hold the Call/Lock button for two
seconds.
A double beep sound is used to confirm your lock
on or off request. When in Lock mode,the Lock icon
will be displayed.
–
Lock Function
Lock Icon
With the radio on, select any of the 22 channels by
pressing enu and the Up or Down button.
Both radios must be tuned to the same channel/privacy
code to communicate.
M
Channel Number

By scrolling through the MENU function, you will be able to
select or turn on preferred features of your radio. When
scrolling through the Menu function, your radio features
will be displayed in the same predetermined order:
Set CTCSS Privacy Codes
Set DCS Privacy Codes
Set Vox /Off
Set Call Tones 1-10
Set Roger Beep On/Off
Set Key Tones On/Off
Set Channels
Sensitivity
Set On/Off
Vibration Alarm
Scrolling Through the Menu Function
Privacy Codes
Your radio incorporates two advanced coded squelch systems
that can help to reduce interference from other users on any given
channel. CTCSS (Continuous Tone Coded Squelch System) provides
38 privacy codes and DCS (Digitally Coded Squelch)provides
104privacy codes. This provides a total of 142 Privacy Codes. Either
system can be used on all channels, but both systems
cannot be used on the same channel at the same time.
To successfully communicate using a privacy code, both
the sending and receiving radios must be tuned to the same
channel and to the same privacy code system (CTCSS or DCS)
and privacy code number. Each channel will remember the last
privacy code system and number you select.
The privacy code 0F is not a privacy code, but allows all signals
to be heard on a channel that is set to 0F on both
the CTCSS and DCS systems.

To select a CTCSS privacy code:
1. After selecting a channel, press the Menu/Power
button until the CTCSS icon appears and the small
numbers next to the channel number flash on the
display.
2. Press using the Up or Down button to select
a privacy code. You can hold the Up or Down button
for fast advance.
3. When your desired CTCSS privacy code is
displayed, press the Menu/Power button to enter the
new setting and proceed to other functions, or press
PTT button to enter the new setting and return to
Standby mode.
If DCS is turned on at the channel selected,the display
will flash the CTCSS icon and “OFF.”To switch from DCS
to CTCSS, press the Up or Down button while the display
is flashing “OFF.”The display will then show the small
numbers flashing and you will then be able to proceed to
step 2.
Privacy Code
Set CTCSS Privacy Codes
Set DCS Privacy Codes
DCS Privacy Code
To select a DCS privacy code:
1. After selecting a channel, press the Menu/Power
button until the DCS icon appears and the small
numbers flash on the display (01 through 104).
If CTCSS is turned on at the channel selected, the
display will flash the DCS icon and “OFF.”To switch
from CTCSS to DCS, press the Channel Up or Channel
Down button while the display is flashing “OFF.”The
display will then show the small numbers flashing and
you will then be able to proceed to step 2.
2. Press using the Up or Down button to select a DCS
privacy code. You can hold the Up or Down button for
fast advance.
3. When DCS privacy code is displayed, press the
Mode/Power button to enter the new setting and proceed
to other functions, or press PTT button to enter the new
setting and return to Standby mode.

To set VOX sensitivity:
1. Press the Menu/Power button until the VOX icon
flashes and the current sensitivity level is displayed.
Voice Activated Transmit (VOX)
In VOX mode, your radio can be used “hands-free,”automatically
transmitting when you speak. You can set the VOX sensitivity level to
fit the volume of your voice and avoid transmissions triggered by
background noise.
The current VOX sensitivity level is displayed
with letters “LE”and a Number 001 through 003,
with Number 003 being the most sensitive level
and Number 001 being the least sensitive level.
2. Press the Up or Down button to change the setting.
3. Press the Menu/Power button to enter the new
setting and proceed to other functions, or press
PTT button to enter the new setting and return to
Standby mode.
Do not press any buttons for 15 seconds to enter
the new setting and return to Standby mode.
The current VOX sensitivity level is displayed
with letters “LE”and a Number 001 through 003,
with Number 003 being the most sensitive level
and Number 001 being the least sensitive level.
To turn VOX mode off:
1. Press the Menu/Power button until the VOX icon
flashes on the display. The current OF setting is
displayed.
2. Press the Up or Down button to turn VOX Off.
3. Press the Mode/Power button to enter the new
setting and proceed to other functions, or press
PTT button to enter the new setting and return to
Standby mode.
Do not press any buttons for 15 seconds to enter
the new setting and return to Standby mode.
VOX sensitivity
VOX sensitivity
VOX Icon
VOX Sensitivity Level
VOX off

You can choose between ten different Call Tone
Settings to transmit a call alert.
To change a call tone setting:
1. Press the Menu/Power button until the letter “C”and
the current call tone number (001 through 010) is
displayed. The current call tone will sound for three
seconds.
2. Press the Up or Down button to hear the other call
tone settings.
3. Choose one of the following:
a. Press the Menu/Power button to enter the new
setting and proceed to other functions.
b. Press PTT button to return to Standby mode.
c. Do not press any buttons for 15 seconds to enter
the new setting and return to Standby mode.
Ten Call Tone Settings
Call Tone Setting
To turn roger beep on or off:
1. Press the Menu/Power button until the Roger Beep
icon flashes. The current on or off setting is displayed.
2. Press the Up or Down button to select roger
beep on or off.
3. Choose one of the following:
a. Press the Menu/Power button to enter the new
setting and proceed to other functions.
b. Press PTT button to return to Standby mode.
c. Do not press any buttons for 15 seconds to enter
the new setting and return to Standby mode.
Roger Beep Confirmation Tone
Your listener will hear an audible tone when you release the PTT
button.This alerts the other party that you are finished talking and
it is OK for them to speak.
Roger Beep Off
Roger Beep OnRoger Beep On
Roger Beep Off

1. Press the Menu/Power button until the Roger
Beep icon is displayed. The current on or off
setting flashes.
2. Press the Up or Down button to select key tone
on or off.
3. Choose one of the following:
a. Press the Menu/Power button to enter the
new setting and proceed to other functions.
b. Press PTT button return to Standby mode.
d. Do not press any buttons for 15 seconds to enter
the new setting and return to Standby mode.
Key Tone On/Off
When Key Tone is On,the Key Tone icon will be displayed, an
audible tone will sound each time a button is pressed.
To turn key tone on or off:
Key Tone Off
Key Tone On
Vibration Alarm and Call Alert
Your radio can alert you to incoming signals by
sounding an audible call tone, by vibrating silently
or both.
To change call settings:
1. Press the Menu button until the Setting
icon flashes on the display. The current setting
(“001”vibrate, “002”ring only, )
is displayed.
2. Press the Up or Down button to change the call
and setting.
3. Choose one of the following:
a. Press the Menu button to enter the new setting
and proceed to other functions.
b. Press PTT button return to Standby mode.
c. Do not press any buttons for 15 seconds to enter
the new setting and return to Standby mode.
“003”vibrate + ring
Vibration
Vibration

1. Press and release the Scan button until the Scan
icon and the channel numbers appear on the display.
2. Press and hold the Scan button to begin scanning
channels.
The radio ignores specific privacy codes while
scanning channels.
The Scan icon will continue to be displayed when
scan is on. Your radio will continue to scan all
channels and stop if an incoming transmission is
detected. Your radio will remain on that channel for
10 seconds.
Channel Scan
Your radio can automatically scan channels.
To scan channels:
Scan Channels
During scanning (while receiving an incoming transmission),
you can choose from the following:
a. Press and hold the PTT button to communicate on that channel.
Your radio will remain on that channel and return to Standby mode.
b. Press the Up or Down button to resume scanning channels.
c. Press and hold the Scan button to return to Standby.
Privacy Code Scan
Your radio can automatically scan the Privacy Codes (either CTCSS
01 through 38 or DCS 01 through 104) within one channel. Only
one set of privacy codes (CTCSS or DCS) can be scanned at a time.
Select Channel
Scan Privacy Codes
To scan privacy codes:
1. While in Standby mode, press and release the
Scan button twice (CTCSS) or three times (DCS)
until the CTCSS or DCS icon and numbers are
flashing.
2. Press and hold the Scan button to begin scanning
privacy codes within the selected channel.
The Scan icon will continue to be displayed when
privacy code scan is on. Your radio will continue to
scan privacy codes and stop as an incoming
transmission is detected. Your radio will remain on that
channel/privacy code for 10 seconds.
a. Press and hold SCAN button return to Standby mode.
During scanning (while receiving an incoming
transmission),you can choose from the following:

NOAA* All Hazards Radio Channels
You can use your radio to listen to NOAA All Hazards Radio
channels transmitting in your area.
Hazards Radio Icon
Weather (WX) Alert Mode
Turning On the Weather Alert function will allow your radio to
automatically receive NOAA Hazard Alert radio signals and warnings
from designated NOAA broadcast stations. If the radio is turned ON,
it will alert to Weather and other emergency alerts broadcast by NOAA.
To listen to All Hazards Radio channels:
1. Press and hold the Weather( ) button until the
All Hazards Radio icon and the currently selected
All Hazards Radio channel are displayed.
2. Use the Up or Down button to change All Hazards
Radio channels.
3. The All Hazards Radio icon will continue to be
displayed when All Hazards Radio is on.
4. To exit All Hazards Radio, press and hold the
Weather button until On or Off is displayed.
*National Oceanographic and Atmospheric
Administration Hazards Radio Icon
To turn Weather Alert On or Off:
1. Press and hold the Weather( ) button until the All
Hazards Radio icon and the currently selected All
Hazards Radio channel are displayed.
1. Press the MENU/Power button until the Weather
Alert icon flashes on the display. The current On or Off
setting is displayed.
2. Press the Up and Down button to turn Weather Aler
On or Off.
This feature is set
to OFF by default.
Make sure the strongest
Weather channel is selected
for your area using the channel
selection in the previous menu.
b Press and hold the PTT button to communicate on that channel/
privacy code. Your radio will remain on that channel/privacy code
and return to Standby mode.
c Press the Up or Down button to resume scanning privacy codes.
If you do not press any button within 10 seconds, your radio will
automatically resume scanning privacy codes.
.
.

3. Press and hold the Weather/Scan button again to
save the new setting and exit the Weather Alert Mode
and return to Standby mode.
This radio is rain resistant to JIS4 standards.
FCC Statement
This equipment has been tested and found to comply with the limits
for Part 15 of the FCC rules. These limits are designed to provide
reasonable protection against harmful interference in a residential
installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance
with the instructions, may cause harmful interference to radio
communications.However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be
determined by turning the equipment off and on,the user is
encouraged to try to correct the interference by one or more of the
following measures:
•Reorient or relocate the receiving antenna.
•Increase the separation between the equipment and receiver.
•Connect the equipment to an outlet on a circuit different from that
to which the receiver is connected.
•Consult the dealer or an experienced radio/TV technician for help.
Any changes or modifications not expressly approved by the party
responsible for compliance could void the user’s authority to operate
the equipment.
This device complies with part 15 of the FCC Rules. Operation is
subject to the condition that this device does not cause harmful
interference.
RF Exposure Warning
This equipment must be installed and operated in accordance with
provided instructions and must not be co-located or operating in
conjunction with any other antenna or transmitter. End-users and
installers must be provide with antenna installation instructions
and transmitter operating conditions for satisfying RF exposure
compliance. The SAR limit adopted by US is 1.6 W/kg averaged
over 1 grams of tissue. The highest SAR value for this device type
when properly worn on the body is 0.68 W/kg.
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