TALKCOM TC750 User manual

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TALKCOM TC750
PMR with FM Radio
User’s Manual

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Content
Safety Instructions -------------------------------------------------- 3
Key Features -------------------------------------------------------- 4
LCD Display Icons -------------------------------------------------- 4
Features ------------------------------------------------------------- 5
Starting operation
Battery Installation ------------------------------------------- 5
Using Li-ION rechargeable battery ---------------------- 5
Using Alkaline batteries ------------------------------------- 6
Recharging the battery -------------------------------------- 7
General operation
Powering the unit On/Off ------------------------------------ 8
Using the PMR ------------------------------------------------- 8
Speaking to other radio -------------------------------------- 8
Listening to other radio -------------------------------------- 8
Using a PTT Earphone -------------------------------------- 8
Adjusting speaker volume (15 Levels) ------------------- 9
TX Timeout function ----------------------------------------- 9
Talk Range ----------------------------------------------------- 9
Menu operation
Menu Flow chart ------------------------------------------- 9
Select channel ---------------------------------------------- 10
CTCSS code ------------------------------------------------ 10
FM Radio ------------------------------------------------ 10
Call Tone -------------------------------------------------- 11
Scramble Function ----------------------------------------- 12
VOX (Hands-free Function) ----------------------------- 12
Stop Watch ------------------------------------------------ 13
Baby Monitor ---------------------------------------------- 13
Roger Beep (On/Off) ------------------------------------- 13
Auto Power Off -------------------------------------------- 14
Scanning Channel ----------------------------------------- 14
Key Lock --------------------------------------------------- 14
Technical Specification ----------------------------------------- 15

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Safety Instructions
Please read this information carefully before
you use the two-way radio.
General Instructions
zKeep the antenna at least 1 inch (2.5cm) away from your
head and body.
zDo not attempt to modify the radio. The radio is designed to
comply with CE & R&TTE.
Environmental conditions
zAvoid placing this radio for prolonged periods of time in
direct sunlight or temperatures below -20℃or above 60℃.
zTurn off the radio wherever posted notices restrict the use
of radios or cellular telephones.
zThe LCD display is made of glass & maybe damaged if
dropped or impacted.
zDon’t use the radio in a high humidity or dusty
environment.
Battery:
zThis radio is designed to use 3.7v Li-Ion rechargeable
battery. The battery included with the radio has a protection
circuit to protect the battery from internal short circuit and
over charge.
zAvoid any contact with conductive materials such as
jewelry, keys, or beaded chains and the exposed terminals
of the battery. Contact could complete an electrical circuit
(short circuit) and caused the battery to over heat and
could cause damage or injury.
zOnly replace batteries with the same or equivalent type
recommended by the manufacturer.

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1. Microphone
2. Earphone & Wall Charger Jack
3. Key Lock Key
4. Menu Key
5. Up Key
6. Down Key
7. Call Tone Key
8. Scan / Monitor Key
9. Power On / Off Key
10. Speaker
11. Desk Top Charger Pin
Key Features
LCD Display Icons

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Features
PMR-446 MHz
8 Channels
38 CTCSS codes
FM Radio: 88 ~ 108 MHz
Scramble Function: 4 Formulae Select
VOX: 3 Levels of Sensitivity
Baby Monitor
Stop Watch
Roger Beep On / Off
Auto Power Off (APO)
Call Tone
Scan
Dual Power
- Li - ION Battery Pack included
- Optional Battery Case for AAA Size Alkaline Batteries x 3pcs
Starting Operation
Battery Installation
Using Li-ION rechargeable battery
zPress the top end of battery door and slide it down
zFollow “This Side Out” & +/- direction to install the Li-ION
battery pack into the compartment

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zThen push up the battery door to close
Warning:
zReversing the polarities of battery could damage the unit
and the battery.
zIf you're not going to use the unit for a long period of time
e.g several weeks, please take out the battery.
zPlease dispose of old and defective batteries in a safe &
environmentally friendly manner.
zDo not dispose of batteries in a fire.
Use Alkaline batteries
You can use normal AAA size batteries with the optional AAA
battery case:

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zFollow +/- direction to install 3 AAA size Alkaline batteries
into the 3A battery case (thick case).
zPower off the PMR, remove the thin battery door and the
Li-ION battery.
zInsert the top end of the AAA battery case and then push
down the battery knob to close.
Recharging the Battery
When the LCD display shows the battery level is low, you must
charge the battery with the enclosed AC/DC Adaptor or Desktop
Charger. The battery has a built-in charging current limit circuit,
when the battery fully charged, the circuit will cut the charge
current automatically to protect the battery.
Charging with the AC/DC Adaptor:
zPlug the adaptor into the wall socket and plug the other
end into the earphone jack.
zThe unit will automatically turn off, LCD backlight turn on
in ‘RED’ and have no display.
zCharge time is around 4 hours. Once fully charged, the
LCD backlight will turn to ‘Green’.
During charging, the unit will slightly warm.
Charging with Desktop Charger
zPlug the adaptor into the desktop charger.
zPut the unit into the charger.
zDuring charging, the RED LED of the charger will be on &
the unit remains on.
zThe charging time is around 6 hours. Once fully charged
the LED of the charger will turn Green. Take out the radio
out of the charger to stop charging
Warning: To avoid damage to the unit, use original accessories.
only

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General Operation
Powering the Unit On/Off
zTo power on the unit, press “ ” Key for 2 seconds until
you hear a beep and the LCD display shows the Channel
no. and battery level icon.
zTo power off the unit, press “ ” Key for 2 seconds until
LCD display turns off.
Using the PMR
The unit has 8 main channels & 38 CTCSS codes. You can
communicate with any other PMR that is using the same main
channel & CTCSS code.
Speaking to other radios
zPress & hold the PTT key, the RED LCD Backlight turn on
& show icon.
zHold the unit in a vertical position with the Microphone
5-8cm from the mouth and then speak
zWhen you have finished speaking, release the PTT key
and you will hear a beep tone.
Listening to other radios
zThe radio will automatically play received transmissions.
zWhen you press the PTT key, you cannot listen to other
radios.
zAdjust volume control if necessary.
Using a PTT Earphone
zPlug the PTT Earphone into the earphone Jack
zPress & hold the PTT key on the earphone to speak.
zRelease the PTT key to listen.
zAdjust volume control if necessary.

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Adjusting speaker volume (15 Levels)
zPress the key to increase the volume.
zPress the
key to decrease the volume.
TX Time Out Function
zTX time out function can avoid accidental transmission and
prolong the battery life.
zThe unit will stop transmitting and sound a warning tone
when PTT is hold over 60 seconds. You then need to
release PTT and press it again for further transmission.
zIn VOX mode, the unit will stop transmitting and sound a
warning tone after continuous transmission for 60 seconds.
You have to press PTT to stop the warning tone and
re-activate VOX for further transmission.
Talk Range
The communication range is optimal in open field conditions and
will vary in different environments:
zOptimal Range – range up to 3 km in open field conditions.
zMedium Range – reduced range in an area with obstacles
such as trees, houses & wall.
zShortest Range – further reduction in range in an area of
dense forest, high mountains & tall buildings.
Warning – Do not transmit within 1.5 meters of other radios
because of interference.
Menu Operation
Menu Flow chart
Press" " once to enter main channel selection. Press " "
again for next function selection.
Menu Main channel CTCSS FM Radio Call
tone Scramble VOX Stop watch Baby monitor
Roger beep APO Menu

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Select Channel
You can communicate with any other user who is using the same
channel.
To set the main channel
zPress the" " key once, the channel number display will
flash,
zPress" "," " key to select your desired main channel.
zPress the “PTT” key to confirm and quit
zOr press " " key once, the last selection will be
confirmed and enter into next function selection.
CTCSS code function
This function can help you to identify your group of users among
the same channel. Only the users with the same CTCSS tone can
listen and talk to each other, but all the users on the same main
channel can listen to the conversation.
To select a CTCSS code
zPress the " "key twice, the CTCSS code display will
flash,
zPress " "," " key to select your desired the CTCSS
code (1~38, " 0 " is off)
zPress the “PTT” key to confirm and quit
zOr press " " key once, the last selection will be
confirmed and enter into next function selection.
FM Radio
You can listen to FM Radio with the speaker or through earphone.