Global Mei Chuang T38 User manual

Operating instruction
0.5Watts Handheld Walkie Talkies
Model NO.: T38

This set included 2 walkie-talkie units: there are communication devices which
operate on mobile on mobile radio frequencies. They come with 8/22(option)
channels as well as back-lit LCD screen, enabling you to communicate over
several kilometers free-of –charge(up to 6KM in open areas).
Note: Please read the operating instructions carefully before using the
equipment and retain for future consultation!
Specific Recommendations
 To avoid the risk of burns, do not use the device if the aerial is damage in
any way.
 Don not use the device in a potentially explosive setting(e.g. Around pumps,
on the lower deck of a boat or around a fuel-storage installation or chemical
products)
 If traveling in a car or by bike, stop before using the device.
 Switch off the device if on an airplane or in a hospital,
 Never use the device in close proximity to a radio that avoid to interference.
 Remove the batteries if the device is not use for an extended period of time.
Never mix used with new batteries.
 Position the transmitter and antenna at least 5cm from your face. Direct the
antenna upwards and speak normally.
 Clean the device with a damp cloth. Avoid the use of cleaning agents and
solvents.
 Do not modify the device in any way. In the event of damage occurring,
ensure that the device us checked by a qualified professional.
 The device cannot be used to contact the emergency services.
Key Functions

Before Use the device
Removing the belt clip
Before insert batteries into the device, first pull the belt clip latch away from the
device.
Installing the Batteries
A, FOR USE OF NON RECHARGEABLE BATTERIES:
1, Slid down the battery compartment cover.
2, Insert 3* AAA Alkaline (Not included)
3, Position the batteries according to the polarity making on the battery
compartment.
4, After placing batteries into correct positions, replace the battery cover.
B, FOR USE OF RECHARGEABLE BATTERIES WITH USB CABLE AND ADAPTER
1, If your walkie talkie comes with rechargeable battery pack, USB cable and
USB adapter or USB car charger, you should only use the battery pack provided
to charge. It cannot charge other type rechargeable batteries.
2, After placing batteries into correct positions, replace the battery cover.
3, The fully charging time is about 12hours.
Using the device
1, Turning the device on/off
Switch on the device: Press and hold on the 3 seconds then you will hear a
beep sound.
Switch off the device: Press and hold on the 3 seconds then you will hear a
beep sound.
2, Adjusting the volume
To increase the volume, press the Up ▲button. And press the Down ▼button
to decrease the volume.
3, Low Battery Indication
The device can detect the low battery level when the battery voltage goes low.
When battery voltage is low, the battery icon will flash and a beep will be heard
to indicate that the batteries need to be replaced.
4, Receiving/transmitting communications:
The devices are in “Reception”mode when it is turned ON and no transmitting.
When a signal is received on the current channel, the LCD will display in
reception.
When you press the PTT (push to talk) button, the devices switches to

“Transmission”mode.
Hold the device in a vertical position with the Mic(microphone) 3-5cm away from
your mouth. While holding the PTT button, speak into the microphone in a
normal tone of voice.
Release the PTT button when you have finished transmitting.
For others to receive your transmission, they must be on the same channel with
you.
Note:
1, The talking range will depend on your surroundings and environment. It will
be affected by obstructions such as hills or buildings.
2, Don’t try to use two devices which are less than 1.5m (5 feet) apart.
Otherwise, you may experience interference.
5, Changing Channels
Press the MENU button one time, The channel number will flash on the display.
Press the up▲/down▼button to change the channel.
Press the PTT button to confirm and return to stand-by mode.
Note: if no button is pressed within 15 seconds during setting, the device will
return to stand-by mode.
6, CTCSS (Continues Tone Coded Squelch System)
Press the MENU button twice, the current CTCSS code will flash on the display.
Press the up▲/down▼button to change the 38 available codes.
Press the PTT button to confirm and return to stand-by mode..
License free radio’s operating on the 400-470MHZ frequency band, the device
has 8/22(option) available radio channels. If there are many device users near
you, there is a chance that some of the users are operating on the same radio
channel.
When using CTCSS, a low frequency tone (between 67-250Hz) will be
transmitted along with the voice signal. There are 38 available tones to choose
form.
You are free to choose one of the 38 available sub-channels. Due to filtering,
these sub-channels will generally not be audible so they will note disturb the
communication.
7, VOX (Hands free function)
Press the MENU button three times, the current VOX setting will flash on the
display and the VOX icon will display,
Press UP▲button to set the VOX sensitivity level between 1 and 3 level(level 3
is the high sensitive level).
Press down▼button until “OF”appears on the display to turn VOX OFF.
Press the PTT button to confirm and return to stand-by mode.
In VOX mode, the radio will transmit a signal when it is activated by your voice
or other sound around you.

VOX Operation is not recommended if you plan to use your device in a noisy or
windy environment.
Note: VOX mode will be over ride when you press the PTT button.
8, Scanning for an active radio channel
Press and hold the UP▲button 2 seconds: The “SCAN”function indicator will
appear on the display and the channel will scan continuously from 1 to 22. Once
an active channel is found, the scanning will stop and you can listen to the
transmission.
When the transmission is on the found channel stop, the scanning will resume
automatically.
Note: If you press PTT button while listening to a found channel, the device will
go back to stand-by mode on the found channel.
9, Monitor
Press and hold the DOWN▼button about 3 seconds to active monitor.
Release the DOWN▼button return to stand by mode.
10, Setting the Call tones
The device has 10 call tones.
Press the MENU button 4 times, “CA”is displayed and on the current call tone.
Press the UP▲/Down▼button to change another call tones.
Press the PTT button to confirm and return to stand-by mode.
11, Sending a call tone
Press the PTT button one time quickly, the call tone will be transmitted on the
setting channel.
12, Roger Beep On/Off
After the PTT button us released, the device will send out a roger beep to
confirm that have stopped talking.
Press the MENU button 5 times, “RO”will be displayed.
Press the UP▲/Down▼button disable the roger beep ON/OFF.
Press The PTT button to confirm your selection and return to the stand-by mode.
13, Backlit display
Press any button except for the MENU button to activate the back light of the
LCD display. The back light will light on about 5 seconds.
14, Earpiece connection
The device can be used with earpiece (If there is earpiece packed together with
the device).
The connector is located on the top of the device.
Insert the earpiece plug into the connector (2.5mm jack).

There is a small “PTT”button on the earpiece that has the same function as the
PTT button on the device.
When you use the PTT button from the earpiece, you must also use the
microphone from the earpiece to talk.
Note: Do not connect other earpieces, it may damage your device.
15, Battery saving function
When the device has not been used for 6 seconds, the economy mode is
automatically activated. This does not affect the reception of transmission and
the stand by mode is automatically re-activated as soon as a signal is detected.
16, Built-in Flash light
Your device has a built-in flash light that can be used in sending light signals or
for our lighting needs.
17, Lock & Unlock the device
Press and hold MENU button for 3 seconds to lock the device.
Press and hold MENU button for 3 seconds to unlock the device.
18, Technical specifications
Frequency 462MHZ
Channel number 22 channels
Sub-code CTCSS 38
Transmission Power ≤0.5W
Range Up to 6 Km in open field
Modulation type FM-F3E
Channel spacing 12.5 KHz (Narrow band)
Channel and Frequency (MHz)
USA(22CH)
Ch. Frequency
Ch. Frequency
Ch. Frequency
Ch. Frequency
1 462.5625
2 462.5875
3 462.6125
4 462.6375
5 462.6625
6 462.6875
7462.7125
8 467.5625
9 467.5875
10 467.6125
11 467.6375
12 467.6625
13 467.6875
14 467.7125
15 462.5500
16 462.5750
17 462.6000
18 462.6250
19 462.6500
20 462.6750
21 462.7000
22 462.7250

RF Exposure Information:
FCC RF Exposure requirements: The highest SAR value reported under this standard
during product certification for use next to the head with the minimum separation distance
of 25mm is 0.103W/Kg. This transmitter must not be collocated or operating in conjunction
with any other antenna or transmitter.
This product is compliance to FCC RF Exposure requirements and refers to FCC website
https://apps.fcc.gov/oetcf/eas/reports/GenericSearch.cfm search for FCC ID:
2AMEA-T38
Channel List:

LICENSING For Products Used in the U.S.A.
FCC Licensing Required This two-way radio operates on GMRS (General Mobile Radio Service)
frequencies which require an FCC (Federal Communications Commission) license. A user must be
licensed prior to operating on Channels 1 through 7 or 15 through 22, which comprise the GMRS
channels of this radio. Serious penalties could result for unlicensed use of GMRS channels, in
violation of FCC rules. Operation of this radio is subject to additional rules specified in 47 C.F.R.
Part 95. Licensed users will be issued a call sign by the FCC, which should be used for station
identification when operating this radio. GMRS users should also cooperate by engaging in
permissible transmissions only, avoiding channel interference with other GMRS users, and being
prudent with the length of their transmission time. For licensing information and application
forms, please call the FCC Hotline at 800-418-FORM. Request form #159 and form #605.
Questions regarding the license application should be directed to the FCC at 888-CALL-FCC.
Additional information is available on the FCC’s website at www.fcc.gov. Channel 1 through 7 and
channels 8 through 14 comprise the FRS (Family Radio Service). No license is required to operate
on the FRS.