Retevis RT75 User manual

User’s manual
0.5Watts Handheld walkie-talkie
Model US:RT75
EU:RT675

EN- Instruction for use
This set includes 2 walkie-talkie units, these are communication devices which operate on
mobile radio frequencies, They come with 16/22 (option) channels as well as a back-lit LCD
screen, enabling you to communicate over several kilometers free-of-charge( up to 2 km in
open areas)
Note: Please read these user instructions carefully before using the equipment and retain
for future consultation.
Specific Recommendations:
If you carry any kind of personal medical device, consult a doctor before use.
To avoid the risk of burns, do not use the device if the aerial is damaged in any way.
Don’t use the device in a potentially explosive setting (e.g. Around petrol pumps, on the
lower deck of a boat or around a fuel-storage installation or chemical products)
If travelling 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 to avoid 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.
Don’t modify the device in any way. In the event of damage occurring, ensuring that
the device is checked by a qualified professional.
The device cannot be used to contact the emergency services.
01

PIC 01
02
Up Button
Down Button

Before Use the device
Remove the belt clip
Before insert batteries into the device, first pull the belt clip latch away from the
device(See PIC02)
Installing the batteries
1.Slid down the battery compartment cover( See pic03).
2.Insert 3*AAA batteries(Not included)
3.Position the batteries according to polarity making on the battery compartment.
4.After placing batteries into correct positions, replace the battery cover( See PIC04)
PIC 04
PIC 03PIC 02
03

Using the device
1.Turning the device on/off:
Switch on the device: press and hold on the on/off button for 3 seconds, then you will
hear a beep sound.
Switch of the device: press and hold on the on/off button for 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
volume.
Note: The volume level is displayed on the screen.
3. Low Battery Indication.
The battery voltage level is indicated by the numbers of squares present inside the battery
icon on the LCD Screen.
Battery Full
Battery 2/3 charged
Battery 1/3 charged
Battery empty
When the battery voltage is low, the battery icon will flash and a beep will be heard to
indicate that the batteries need to be replaced or recharged.
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) 5-10cm 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.
04

Note:
1.The maximum talking range is 2km, it will depended 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 1.5mm(5 feets) 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 61 available codes.
Press the PTT button to confirm and return to stand-by mode.
License free radio
’ s operating on the FRS/PMR446 frequency band , the device has
16/22 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.
To prevent that you receive signals from other users, sub-channels have been integrated.
When using CTCSS, a low frequency tone (between 67-250 HZ) will be transmitted along
with the voice signal, There are 99 available tones to choose from,
You are free to choose one of the 99 available sub-channels, Due to filtering, these sub-
channels will generally not be audible so they will not disturb the communication.
05

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 16/22. 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 Tone
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 Tone.
Press the PTT button to confirm and return to stand-by Mode.
06

11, Sending a call Tone.
Press the CALL button one time quickly, the call tone will be transmitted on the setting
channel.
12. Roger Beep On/Off
After the PTT button is 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. Headset connection,
The device can be used with headset (If there is headset 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 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 t
he earpiece to talk.
Note: Don’t connect other headset, it may damage your device.
07

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 signal is detected.
16. Buit-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. The button lock icon is
displayed on the LCD screen.
Press and hold MENU button for 3 seconds to unlock the device.
18. Technical specifications
Frequency US:FRS，EU:PMR446，CA:FRS&GMRS
Channels EU:16 channels , US(CA):22 channels
Sub-code CTCSS 61
Transmission Power =<500mW ERP
Range Up to 2 Km(Open field)
Battery type 3xAAA Alkaline/rechargeable batteries(Not included)
Modulation Type FM – F3E
Channel spacing 12.5kHz(Narrow band)
08

Frequency CH FrequencyCH
1 462.5625
2 462.5875
3 462.6125
4 462.6375
5 462.6625
6 462.6875
7 462.7125
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
1 446.00625
2 446.01875
3 446.03125
4 446.04375
5 446.05625
6 446.06875
7 446.08125
8 446.09375
9 446.10625
10 446.11875
11 446.13125
12 446.14375
13 446.15625
14 446.16875
15 446.18125
16 446.19375
17 462.6000
18 462.6250
19 462.6500
20 462.6750
21 462.7000
22 462.7250
US（ FrequencyZGHRK
EU（ FrequencyZGHRK
09

RF ENERGY EXPOSURE AND PRODUCT SAFETY GUIDE FOR PORTABLE
TWO-WAY RADIOS
This two-way radio uses electromagnetic energy in the radio frequency (RF) spec-
trum to provide communications between two or more users over a distance. RF
energy, which when used improperly, can cause biological damage.
All Retevis two-way radios are designed, manufactured, and tested to ensure they
meet government-established RF exposure levels. In addition, manufacturers also
recommend specific operating instructions to users of two-way radios. These instr
uctions are important because they inform users about RF energy exposure and
provide simple procedures on how to control it.Please refer to the following websi-
tes for more information on what RF energy exposure is and how to control your
exposure to assure compliance with established RF exposure
limits: http://www.who.int/en/
Local Government Regulations
When two-way radios are used as a consequence of employment, the Local Gove-
rnment Regulations requires users to be fully aware of and able to control their ex-
posure to meet occupational requirements. Exposure awareness can be facilitated
by the use of a product label directing users to specific user awareness information.
Your Retevis two-way radio has a RF Exposure Product Label. Also, your Retevis
user manual, or separate safety booklet includes information and operating instruc-
tions required to control your RF exposure and to satisfy compliance requirements.
Radio License
Governments keep the radios in classification, business two-way radios operate on
radio frequencies that are regulated by the local radio management departments
(FCC, ISED, OFCOM, ANFR, BFTK, Bundesnetzagentur...).To transmit on these
frequencies, you are required to have a license issued by them. The detailed class-
ification and the use of your two radios, please contact the local government radio
management departments.
ATTENTION!
Before using this radio, read this guide which contains
important operating instructions for safe usage and RF
energy awareness and control for compliance with
applicable standards and regulations.
07

Use of this radio outside the country where it was intended to be distributed is
subject to government regulations and may be prohibited.
Unauthorized modification and adjustment
Changes or modifications not expressly approved by the party responsible for com-
pliance may void the user’s authority granted by the local government radio mana-
gement departments to operate this radio and should not be made. To comply with
the corresponding requirements, transmitter adjustments should be made only by
or under the supervision of a person certified as technically qualified to perform
transmitter maintenance and repairs in the private land mobile and fixed services
as certified by an organization representative of the user of those services.
Replacement of any transmitter component (crystal, semiconductor, etc.) not
authorized by the local government radio management departments equipment
authorization for this radio could violate the rules.
FCC Requirements
This device complies with part 15 of the FCC Rules. Operation is subject to the
condition that this device does not cause harmful interference. (Licensed radios
are applicable);
This device complies with part 15 of the FCC Rules. Operation is subject to the
following two conditions: (Other devices are applicable)
(1) This device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that
may cause undesired operation.
NOTE: This equipment has been tested and found to comply with the limits for a
Class A digital device, pursuant to part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference when
the equipment is operated in a commercial environment. This equipment gen-
erates, uses, and can radiate radio frequency energy and, if not installed and
used in accordance with the instruction manual, may cause harmful interference
to radio communications. Operation of this equipment in a residential area is
likely to cause harmful interference in which case the user will be required to
correct the interference at his own expense.
CE Requirements:
• (Simple EU declaration of conformity)Shenzhen Retevis Technology Co., Ltd.
08

requirements and other relevant provisions of RED Directive 2014/53/EU and the
ROHS Directive 2011/65/EU and the WEEE Directive 2012/19/EU; the
full text of the EU declaration of conformity is available at the following internet
address: www.retevis.com.
• Restriction Information
This product can be used in EUcountries and regions, including: Belgium (BE),
Bulgaria (BG), Czech Republic (CZ), Denmark (DK), Germany (DE), Estonia (EE),
Ireland (IE), Greece (EL), Spain (ES), France (FR), Croatia (HR), Italy (IT), Cyprus
(CY), Latvia (LV), Lithuania (LT), Luxembourg (LU), Hungary (HU), Malta (MT),
Netherlands (NL), Austria (AT), Poland (PL), Portugal (PT), Romania (RO), Slovenia
(SI), Slovakia (SK), Finland (FI), Sweden (SE) and United Kingdom (UK).
For the warning information of the frequency restriction, please refer to the package
or manual section.
• Disposal
The crossed-out wheeled-bin symbol on your product, literature, or packaging rem-
inds you that in the European Union, all electrical and electronic products,
batteries, and accumulators (rechargeable batteries) must be taken to
designated collection locations at the end of their working life. Do not
dispose of these products as unsorted municipal waste. Dispose of them
according to the laws in your area.
IC Requirements:
Licence-exempt radio apparatus
This device contains licence-exempt transmitter(s)/receiver(s) that comply with
Innovation, Science and Economic Development Canada’s licence-exempt RSS(s).
Operation is subject to the following two conditions:
(1) This device may not cause interference.
(2) This device must accept any interference, including interference that may cause
undesired operation of the device.
Le présent appareil est conforme aux CNR d’Industrie Canada applicables aux
appareils radio exempts de licence. L’exploitation est autorisée aux deux conditions
suivantes :
(1) l’appareil ne doit pas produire de brouillage;
(2) l’utilisateur de l’appareil doit accepter tout brouillage radioélectrique subi, même
si le brouillage est susceptible d’en compromettre le fonctionnement.
09
declares that the radio equipment type is in compliance with the essential

RF Exposure Information
• DO NOT operate the radio without a proper antenna attached, as this may
damage the radio and may also cause you to exceed RF exposure limits. A proper
antenna is the antenna supplied with this radio by the manufacturer or an antenna
specifically authorized by the manufacturer for use with this radio, and the antenna
gain shall not exceed the specified gain by the manufacturer declared.
• DO NOT transmit for more than 50% of total radio use time, more than 50% of the
time can cause RF exposure compliance requirements to be exceeded.
• During transmissions, your radio generates RF energy that can possibly cause
interference with other devices or systems. To avoid such interference,turn off the
radio in areas where signs are posted to do so.
• DO NOT operate the transmitter in areas that are sensitive to electromagnetic
radiation such as hospitals, aircraft, and blasting sites.
• Portable Device, this transmitter may operate with the antenna(s) documented in
this filing in Push-to-Talk and body-worn configurations. RF exposure compliance
is limited to the specific belt-clip and accessory configurations as documented in
this filing and the separation distance between user and the device or its antenna
shall be at least 2.5 cm.
• Mobile Device, during operation, the separation distance between user and the
antenna subjects to actual regulations, this separation distance will ensure that
there is sufficient distance from a properly installed externally-mounted antenna to
satisfy the RF exposure requirements.
• Occupational/Controlled Radio, this radio is designed for and classified as “Occu-
pational/Controlled Use Only”, meaning it must be used only during the course of
employment by individuals aware of the hazards, and the ways to minimize such
hazards; NOT intended for use in a General population/uncontrolled environment.
• General population/uncontrolled Radio, this radio is designed for and classified as
“General population/uncontrolled Use”.
RF Exposure Compliance and Control Guidelines and Operating
Instructions
To control your exposure and ensure compliance with the occupational/controlled
environment exposure limits, always adhere to the following procedures.
Guidelines:
• User awareness instructions should accompany the device when transferred to
other users. 10

• Do not use this device if the operational requirements described herein are not met.
Operating Instructions:
• Transmit no more than the rated duty factor of 50% of the time. To Transmit(Talk),
push the Push to Talk (PTT) button. To receive calls (listen), release the PTT button.
Transmitting 50% of the time, or less, is important because the radio generates
measurable RF energy exposure only when transmitting in terms of measuring for
standards compliance.
• Transmit only when people outside the vehicle are at least the recommended
minimum lateral distance away from a properly installed according to installation
instructions, externally mounted antenna.
• When operating in front of the face, worn on the body, always place the radio in a
Retevis approved clip, holder, holster, case, or body harness for this product. Us-
ing approved body-worn accessories is important because theuse of Non-Retevis
approved accessories may result in exposure levels, which exceed the IEEE/
ICNIRP RF exposure limits.
Hand-held Mode
• Hold the radio in a vertical position with the microphone (and other
parts of the radio including the antenna) at least 2.5 cm(one inch)
away from the nose or lips. The antenna should be kept away from
the eyes. Keeping the radio at a proper distance is important as RF
exposure decreases with increasing distance from the antenna.
Phone Mode
• When placing or receiving a phone call, hold your radio product as you would a
wireless telephone. Speak directly into the microphone.
Electromagnetic Interference/Compatibility
NOTE: Nearly every electronic device is susceptible to electromagnetic
interference (EMI) if inadequately shielded, designed, or otherwise
configured for electromagnetic compatibility.
Avoid Burns
Small Parts. Not for children under 3 years.
11

Turn off your radio power in the following conditions:
• Turn off your radio before removing (installing) a battery or accessory or
when charging battery.
• Turn off your radio when you are in a potentially hazardous environments:
Near electrical blasting caps, in a blasting area, in explosive atmospheres
(inflammable gas, dust particles, metallic powders, grain powders, etc.).
• Turn off your radio while taking on fuel or while parked at gasoline service stations.
To avoid electromagnetic interference and/or compatibility conflicts
• Turn off your radio in any facility where posted notices instruct you to do so, hosp-
itals or health care facilities (Pacemakers,Hearing Aids and Other Medical Devices)
may be using equipment that is sensitive to external RF energy.
• Turn off your radio when on board an aircraft. Any use of a radio must be in
accordance with applicable regulations per airline crew instructions.
Protect your hearing:
• Use the lowest volume necessary to do your job.
• Turn up the volume only if you are in noisy surroundings.
• Turn down the volume before adding headset or earpiece.
• Limit the amount of time you use headsets or earpieces at high volume.
• When using the radio without a headset or earpiece, do not place the
radio's speaker directly against your ear
• Use careful with the earphone maybe possible excessive sound pressure
from earphones and headphones can cause hearing loss
Note: Exposure to loud noises from any source for extended periods of time may
temporarily or permanently affect your hearing. The louder the radio's volume, the
less time is required before your hearing could be affected. Hearing damage from
loud noise is sometimes undetectable at first and can have a cumulative effect.
Avoid Burns
Antennas
• Do not use any portable radio that has a damaged antenna. If a damaged
antenna comes into contact with the skin when theradio is in use, a minor
burn can result.
Batteries (If appropriate)
• When the conductive material such as jewelry, keys or chains touch
WARNING
WARNING
WARNING
12

exposed terminals of the batteries, may complete an electrical circuit (short circuit
the battery) and become hot to cause bodily injury such as burns. Exercise care in
handling any battery, particularly when placing it inside a pocket, purse or other
container with metal objects
Long transmission
• When the transceiver is used for long transmissions, the radiator and chassis will
become hot.
Safety Operation
Forbid
• Do not use charger outdoors or in moist environments, use only in dry
locations/conditions.
• Do not disassemble the charger, that may result in risk of electrical
shock or fire.
• Do not operate the charger if it has been broken or damaged in any way.
• Do not place a portable radio in the area over an air bag or in the air bag deploy-
ment area. The radio may be propelled with great force and cause serious injury
to occupants of the vehicle when the air bag inflates.
To reduce risk
• Pull by the plug rather than the cord when disconnecting the charger.
• Unplug the charger from the AC outlet before attempting any maintenance or
cleaning.
• Contact Retevis for assistance regarding repairs and service.
• The adapter shall be installed near the equipment and shall be easily accessible
Approved Accessories
• This radio meets the RF exposure guidelines when used with the Retevis
accessories supplied or designated for the product. Use of other access-
ories may not ensure compliance with the RF exposure guidelines and
may violate regulations.
• For a list of Retevis-approved accessories for your radio model, visit the
following website: http://www.Retevis.com
WARNING
WARNING
13

Warranty Card
Cut along this line
Product model: Date of purchase:
Serial Number:
Seller: contact number:
contact number:
Zip code：
Username:
Address:
Warranty description:
1. The warranty card is saved by the customer as the
warranty certificate, and the loss is not compensated.
2. This card must be stamped and dated for sale to take
effect.
3. This card must not be altered. Please confirm that the
warranty card serial number matches the purchase
machine number, otherwise it will be invalid.
4. The warranty period is one year. Chargers, batteries,
headphones, antennas and feeders are consumables, not
covered by warranty.
5. Users can choose the following ways to get repair
service:
a. At the original purchase office.
b. Our company is in the local special maintenance point.

Shenzhen Retevis Technology Co., Ltd
7/ F, 13-C, Zhonghaixin Science & Technology Park, No.12 Ganli 6th Road,
Jihua Street, Longgang District, Shenzhen, China
Web: www.retevis.com
E-mail: [e-mail]
Facebook: f acebook.com/ retevis
EU Importer：Germany Retevis Technology GmbH
Address：Uetzenacker 29,38176 wendeburg