Retekess TR502 User manual

Precautions For Use
● There is high pressure inside the machine,maintenance can only be operated
by professional and technical person.
● Please put the machine in a cool dry and ventilated environment for use,the
ambient temperature should not be higher than 35 degree centigrades.
● After antenna installed,there should be 5 meters above from the ground and
wall spacing as standard installation environment.
● When install the feed tube,be sure to tie the feed tube to the mounting rod with
a tie to prevent the feed tube from pulling loose on the connector.
● Please do not turn on the machine without connecting the antenna.
● Please do not touch the antenna after machine is power on.
● Please do not use this machine in explosive antospheres(eg gas stations, gas,
steam,etc.).
● Please comply with local radio regulations.
TR502 FM Transmitter User Manual
1 2 3
temperature rises. Adjust the antenna oscillator height corresponding to the
launch frequency or adjust the antenna position;
3. Into the outlet there are obstacles, blocked the flow of air temperature is too
high;
4. engine room air convection, or the engine room temperature is too high.
Technical Parameter
Lever antenna frequency length corresponding table
NO. Item Technical Parameter
Working voltage
Working current
Frequency range
Frequency stability
Frequency step
Environmental Operating temperature
Output impedance
RF output power
Harmonic / clutter radiation
Audio distortion
Bluetooth distance
Frequency response
Resolution degree
Input level
Modulation frequency offset
SNR
Size
Weight
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
DC 12V
﹤3A
87-108MHz
±10PPM
100KHz
-10℃~45℃
50Ω
0W~15W
≤－50dB
0.3%
≤5m
50Hz~15000Hz
≥30 dB
≤-15~15 dBV
±75KHZ
≥60dB
144*100*54
550g
Working
Frequency
Transmit Power
Reflected Power
Soundtrack Mode
U Disk Play
Bluetooth Connect
Alarm
MHz
FWD
REF
U Disk Outlet
PC Control
Power Socket
Cooling Fan
TNC Antenna Female
seat
Audio Volume Adjustment
Audio Socket
On/Off Setting Button
Down Button
Up Button
Microphone socket
Microphone Volume
Adjustment
MHz
FWD
REF
Function and Parameter setting
1. Power On/Off
When the machine is connected to power, then it starts.
In working condition, long press【 】key, the machine enters standby mode.
In standby mode, long press【 】key, the machine goes into working
condition.
2. Frequency Adjustment
In working condition, short press【 】, when the【 MHZ 】icon in the lower
right corner flashes, press【 】or【 】to adjust the frequency.
Short press【 】or【 】, frequency steps by 100K;
Long press【 】or【 】button,frequency continuously steps by 100K.
3. Power Adjustment
Short press【 】button, when the【 FWD 】icon on the screen is flashing,
press【 】or【 】to adjust the power ; Short press【 】or【 】
button Decrement;【 REF 】icon is displayed as reflected power.
PS:
The 15-watt power shows 1.9 watts per cell, with a minimum of 0 cells and a
maximum of 8 cells.
4. Soundtrack Adjustment
In the working state, short press【 】, when the【 】icon of screen power
icon is flashing, press【 】or【 】to adjust the channel mode;
【 】is mono;【 】When the stereo channel.
5. Amplifier Temperature
In working condition, short press【 】button, when the【 ##.##℉】icon is
displayed, it is the current temperature of the amplifier module.
6. Audio / Microphone Volume Adjustment
Turn the audio knob / microphone knob clockwise to increase the volume;
turn counterclockwise to decrease the volume.
Bluetooth Connection / U Disk Play
When the host is turned on, the screen displays【 】icon,device open
Bluetooth to search NIORFNIO to connect.
When the host is turned on, insert U disk, the screen displays【 】icon;
press【 】or【 】buttonto switch songs;
Long press the【 】button to switch the sound mode (NO normal, POP pop,
JAZ Jazz, CLA classical, BAS bass).
Long press the【 】button to switch play mode (ALL ALL, FOL in sequence,
ONE ONE, RAN)
Input priority:
Audio cable > U disk play > Bluetooth play
Alarm Reminder Function
When the machine is working, it sends alarm and the alarm icon【 】flashes
in the lower left corner of the screen.
General troubleshooting:
Standing Wave Alarm
1.The antenna is not connected
2. Feeders rolled together, did not start;
3. Antenna installation from the ground, wall or metal objects too close, adjust the
antenna installation location;
4. Antenna oscillator height and frequency do not match, adjust the height of the
antenna to the launch point.
Temperature alarm
1.Fan does not turn
2. The antenna does not match,which causes standing wave too large and
L（CM）
MHZ
Transmit Frequency
MHZ
Antenna Length
IN
Transmit Frequency
MHZ
Antenna Length
IN
76
38.6
94
31.1
78
37.8
96
30.3
80
36.6
98
29.9
82
35.8
100
29.5
84
35.0
102
28.7
86
34.3
104
28.3
88
33.5
106
27.6
90
32.7
108
27.2
92
31.9

Precautions For Use
● There is high pressure inside the machine,maintenance can only be operated
by professional and technical person.
● Please put the machine in a cool dry and ventilated environment for use,the
ambient temperature should not be higher than 35 degree centigrades.
● After antenna installed,there should be 5 meters above from the ground and
wall spacing as standard installation environment.
● When install the feed tube,be sure to tie the feed tube to the mounting rod with
a tie to prevent the feed tube from pulling loose on the connector.
● Please do not turn on the machine without connecting the antenna.
● Please do not touch the antenna after machine is power on.
● Please do not use this machine in explosive antospheres(eg gas stations, gas,
steam,etc.).
● Please comply with local radio regulations.
TR502 FM Transmitter User Manual
1 2 3
temperature rises. Adjust the antenna oscillator height corresponding to the
launch frequency or adjust the antenna position;
3. Into the outlet there are obstacles, blocked the flow of air temperature is too
high;
4. engine room air convection, or the engine room temperature is too high.
Technical Parameter
Lever antenna frequency length corresponding table
NO. Item Technical Parameter
Working voltage
Working current
Frequency range
Frequency stability
Frequency step
Environmental Operating temperature
Output impedance
RF output power
Harmonic / clutter radiation
Audio distortion
Bluetooth distance
Frequency response
Resolution degree
Input level
Modulation frequency offset
SNR
Size
Weight
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
DC 12V
﹤3A
87-108MHz
±10PPM
100KHz
-10℃~45℃
50Ω
0W~15W
≤－50dB
0.3%
≤5m
50Hz~15000Hz
≥30 dB
≤-15~15 dBV
±75KHZ
≥60dB
144*100*54
550g
Working
Frequency
Transmit Power
Reflected Power
Soundtrack Mode
U Disk Play
Bluetooth Connect
Alarm
MHz
FWD
REF
U Disk Outlet
PC Control
Power Socket
Cooling Fan
TNC Antenna Female
seat
Audio Volume Adjustment
Audio Socket
On/Off Setting Button
Down Button
Up Button
Microphone socket
Microphone Volume
Adjustment
MHz
FWD
REF
Function and Parameter setting
1. Power On/Off
When the machine is connected to power, then it starts.
In working condition, long press【 】key, the machine enters standby mode.
In standby mode, long press【 】key, the machine goes into working
condition.
2. Frequency Adjustment
In working condition, short press【 】, when the【 MHZ 】icon in the lower
right corner flashes, press【 】or【 】to adjust the frequency.
Short press【 】or【 】, frequency steps by 100K;
Long press【 】or【 】button,frequency continuously steps by 100K.
3. Power Adjustment
Short press【 】button, when the【 FWD 】icon on the screen is flashing,
press【 】or【 】to adjust the power ; Short press【 】or【 】
button Decrement;【 REF 】icon is displayed as reflected power.
PS:
The 15-watt power shows 1.9 watts per cell, with a minimum of 0 cells and a
maximum of 8 cells.
4. Soundtrack Adjustment
In the working state, short press【 】, when the【 】icon of screen power
icon is flashing, press【 】or【 】to adjust the channel mode;
【 】is mono;【 】When the stereo channel.
5. Amplifier Temperature
In working condition, short press【 】button, when the【 ##.##℉】icon is
displayed, it is the current temperature of the amplifier module.
6. Audio / Microphone Volume Adjustment
Turn the audio knob / microphone knob clockwise to increase the volume;
turn counterclockwise to decrease the volume.
Bluetooth Connection / U Disk Play
When the host is turned on, the screen displays【 】icon,device open
Bluetooth to search NIORFNIO to connect.
When the host is turned on, insert U disk, the screen displays【 】icon;
press【 】or【 】buttonto switch songs;
Long press the【 】button to switch the sound mode (NO normal, POP pop,
JAZ Jazz, CLA classical, BAS bass).
Long press the【 】button to switch play mode (ALL ALL, FOL in sequence,
ONE ONE, RAN)
Input priority:
Audio cable > U disk play > Bluetooth play
Alarm Reminder Function
When the machine is working, it sends alarm and the alarm icon【 】flashes
in the lower left corner of the screen.
General troubleshooting:
Standing Wave Alarm
1.The antenna is not connected
2. Feeders rolled together, did not start;
3. Antenna installation from the ground, wall or metal objects too close, adjust the
antenna installation location;
4. Antenna oscillator height and frequency do not match, adjust the height of the
antenna to the launch point.
Temperature alarm
1.Fan does not turn
2. The antenna does not match,which causes standing wave too large and
L（CM）
MHZ
Transmit Frequency
MHZ
Antenna Length
IN
Transmit Frequency
MHZ
Antenna Length
IN
76
38.6
94
31.1
78
37.8
96
30.3
80
36.6
98
29.9
82
35.8
100
29.5
84
35.0
102
28.7
86
34.3
104
28.3
88
33.5
106
27.6
90
32.7
108
27.2
92
31.9

Precautions For Use
● There is high pressure inside the machine,maintenance can only be operated
by professional and technical person.
● Please put the machine in a cool dry and ventilated environment for use,the
ambient temperature should not be higher than 35 degree centigrades.
● After antenna installed,there should be 5 meters above from the ground and
wall spacing as standard installation environment.
● When install the feed tube,be sure to tie the feed tube to the mounting rod with
a tie to prevent the feed tube from pulling loose on the connector.
● Please do not turn on the machine without connecting the antenna.
● Please do not touch the antenna after machine is power on.
● Please do not use this machine in explosive antospheres(eg gas stations, gas,
steam,etc.).
● Please comply with local radio regulations.
TR502 FM Transmitter User Manual
1 2 3
temperature rises. Adjust the antenna oscillator height corresponding to the
launch frequency or adjust the antenna position;
3. Into the outlet there are obstacles, blocked the flow of air temperature is too
high;
4. engine room air convection, or the engine room temperature is too high.
Technical Parameter
Lever antenna frequency length corresponding table
NO. Item Technical Parameter
Working voltage
Working current
Frequency range
Frequency stability
Frequency step
Environmental Operating temperature
Output impedance
RF output power
Harmonic / clutter radiation
Audio distortion
Bluetooth distance
Frequency response
Resolution degree
Input level
Modulation frequency offset
SNR
Size
Weight
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
DC 12V
﹤3A
87-108MHz
±10PPM
100KHz
-10℃~45℃
50Ω
0W~15W
≤－50dB
0.3%
≤5m
50Hz~15000Hz
≥30 dB
≤-15~15 dBV
±75KHZ
≥60dB
144*100*54
550g
Working
Frequency
Transmit Power
Reflected Power
Soundtrack Mode
U Disk Play
Bluetooth Connect
Alarm
MHz
FWD
REF
U Disk Outlet
PC Control
Power Socket
Cooling Fan
TNC Antenna Female
seat
Audio Volume Adjustment
Audio Socket
On/Off Setting Button
Down Button
Up Button
Microphone socket
Microphone Volume
Adjustment
MHz
FWD
REF
Function and Parameter setting
1. Power On/Off
When the machine is connected to power, then it starts.
In working condition, long press【 】key, the machine enters standby mode.
In standby mode, long press【 】key, the machine goes into working
condition.
2. Frequency Adjustment
In working condition, short press【 】, when the【 MHZ 】icon in the lower
right corner flashes, press【 】or【 】to adjust the frequency.
Short press【 】or【 】, frequency steps by 100K;
Long press【 】or【 】button,frequency continuously steps by 100K.
3. Power Adjustment
Short press【 】button, when the【 FWD 】icon on the screen is flashing,
press【 】or【 】to adjust the power ; Short press【 】or【 】
button Decrement;【 REF 】icon is displayed as reflected power.
PS:
The 15-watt power shows 1.9 watts per cell, with a minimum of 0 cells and a
maximum of 8 cells.
4. Soundtrack Adjustment
In the working state, short press【 】, when the【 】icon of screen power
icon is flashing, press【 】or【 】to adjust the channel mode;
【 】is mono;【 】When the stereo channel.
5. Amplifier Temperature
In working condition, short press【 】button, when the【 ##.##℉】icon is
displayed, it is the current temperature of the amplifier module.
6. Audio / Microphone Volume Adjustment
Turn the audio knob / microphone knob clockwise to increase the volume;
turn counterclockwise to decrease the volume.
Bluetooth Connection / U Disk Play
When the host is turned on, the screen displays【 】icon,device open
Bluetooth to search NIORFNIO to connect.
When the host is turned on, insert U disk, the screen displays【 】icon;
press【 】or【 】buttonto switch songs;
Long press the【 】button to switch the sound mode (NO normal, POP pop,
JAZ Jazz, CLA classical, BAS bass).
Long press the【 】button to switch play mode (ALL ALL, FOL in sequence,
ONE ONE, RAN)
Input priority:
Audio cable > U disk play > Bluetooth play
Alarm Reminder Function
When the machine is working, it sends alarm and the alarm icon【 】flashes
in the lower left corner of the screen.
General troubleshooting:
Standing Wave Alarm
1.The antenna is not connected
2. Feeders rolled together, did not start;
3. Antenna installation from the ground, wall or metal objects too close, adjust the
antenna installation location;
4. Antenna oscillator height and frequency do not match, adjust the height of the
antenna to the launch point.
Temperature alarm
1.Fan does not turn
2. The antenna does not match,which causes standing wave too large and
L（CM）
MHZ
Transmit Frequency
MHZ
Antenna Length
IN
Transmit Frequency
MHZ
Antenna Length
IN
76
38.6
94
31.1
78
37.8
96
30.3
80
36.6
98
29.9
82
35.8
100
29.5
84
35.0
102
28.7
86
34.3
104
28.3
88
33.5
106
27.6
90
32.7
108
27.2
92
31.9

• 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 the radio
is in use, a minor burn can result.
Batteries (If appropriate)
• When the conductive material such as jewelry, keys or chains
touch 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 deployment 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 Retekess for assistance regarding repairs and service.
• The adapter shall be installed near the equipment and shall be
easily accessible
• Risk of explosion if battery is replaced by an incorrect type. Dispose
of used batteries according to the instructions.
• Adapter shall be installed near the equipment and shall be easily
accessible.
• The plug considered as disconnect device of adapter.
• The operating temperature of the EUT can’t exceed the specified
range.
Approved Accessories
• This radio meets the RF exposure guidelines when used with the
Retekess accessories supplied or designated for the product. Use
of other accessories may not ensure compliance with the RF
exposure guidelines and may violate regulations.
• For a list of Retekess-approved accessories for your radio model,
visit the following website: http://www.Retekess.com
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 into 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.
CE Requirements:
• (Simple EU declaration of conformity) Henan Eshow Electronic Commerce
Co.,Ltd declares that the radio equipment type is in compliance with the essential
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.retekess.com.
• Disposal
The crossed-out wheeled-bin symbol on your product, literature, or pack-
aging reminds 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 ap-
pareils 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.
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.
• The device complies with RF specifications when the device used at 5mm from
your body. Third-party belt-clips, holsters, and similar accessories used by this
device should not contain any metallic components. Body-worn accessories that
do not meet these requirements may not comply with RF exposure requirements
and should be avoided.
• DO NOT operate the transmitter in areas that are sensitive to electromagnetic
radiation such as hospitals, aircraft, and blasting sites.
Avoid Choking Hazard
Small Parts. Not for children under 3 years.
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.
WARNING
WARNING
WARNING
WARNING
456
EU Importer：
Name：Germany Retevis Technology GmbH
Address：Uetzenacker 29,38176 wendeburg
Warnings
This radio uses electromagnetic energy in the radio frequency (RF) spectrum to
provide communications between two or more users over a distance. RF energy,
which when used improperly, can cause biological damage.
All Retekess radios are designed, manufactured, and tested to ensure they meet
government-established RF exposure levels. In addition, manufacturers also reco-
mmend specific operating instructions to users of the radios. These instructions
are important because they inform users about RF energy exposure and provide
simple procedures on how to control it.
Please refer to the following websites 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 radios are used as a consequence of employment, the Local Government
Regulations requires users to be fully aware of and able to control their exposure
to meet occupational requirements. Exposure awareness can be facilitated by the
use of a product label directing users to specific user awareness information.
Your Retekess radio has a RF Exposure Product Label. Also, your Retekess user
manual, or separate safety booklet includes information and operating instructions
required to control your RFexposure and to satisfy compliance requirements.
Radio License (if appropriate)
Governments keep the radios in classification, business 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
classification and the use of your radios, please contact the local government
radio management departments. 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
compliance may void the user’s authority granted by the local government radio
management 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
following two conditions:
(1) This device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that
may cause undesired operation.
• This equipment has been tested and found to comply with the limits for a Class
B digital device, pursuant to 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 interf-
erence 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
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.

• 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 the radio
is in use, a minor burn can result.
Batteries (If appropriate)
• When the conductive material such as jewelry, keys or chains
touch 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 deployment 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 Retekess for assistance regarding repairs and service.
• The adapter shall be installed near the equipment and shall be
easily accessible
• Risk of explosion if battery is replaced by an incorrect type. Dispose
of used batteries according to the instructions.
• Adapter shall be installed near the equipment and shall be easily
accessible.
• The plug considered as disconnect device of adapter.
• The operating temperature of the EUT can’t exceed the specified
range.
Approved Accessories
• This radio meets the RF exposure guidelines when used with the
Retekess accessories supplied or designated for the product. Use
of other accessories may not ensure compliance with the RF
exposure guidelines and may violate regulations.
• For a list of Retekess-approved accessories for your radio model,
visit the following website: http://www.Retekess.com
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 into 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.
CE Requirements:
• (Simple EU declaration of conformity) Henan Eshow Electronic Commerce
Co.,Ltd declares that the radio equipment type is in compliance with the essential
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.retekess.com.
• Disposal
The crossed-out wheeled-bin symbol on your product, literature, or pack-
aging reminds 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 ap-
pareils 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.
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.
• The device complies with RF specifications when the device used at 5mm from
your body. Third-party belt-clips, holsters, and similar accessories used by this
device should not contain any metallic components. Body-worn accessories that
do not meet these requirements may not comply with RF exposure requirements
and should be avoided.
• DO NOT operate the transmitter in areas that are sensitive to electromagnetic
radiation such as hospitals, aircraft, and blasting sites.
Avoid Choking Hazard
Small Parts. Not for children under 3 years.
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.
WARNING
WARNING
WARNING
WARNING
456
EU Importer：
Name：Germany Retevis Technology GmbH
Address：Uetzenacker 29,38176 wendeburg
Warnings
This radio uses electromagnetic energy in the radio frequency (RF) spectrum to
provide communications between two or more users over a distance. RF energy,
which when used improperly, can cause biological damage.
All Retekess radios are designed, manufactured, and tested to ensure they meet
government-established RF exposure levels. In addition, manufacturers also reco-
mmend specific operating instructions to users of the radios. These instructions
are important because they inform users about RF energy exposure and provide
simple procedures on how to control it.
Please refer to the following websites 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 radios are used as a consequence of employment, the Local Government
Regulations requires users to be fully aware of and able to control their exposure
to meet occupational requirements. Exposure awareness can be facilitated by the
use of a product label directing users to specific user awareness information.
Your Retekess radio has a RF Exposure Product Label. Also, your Retekess user
manual, or separate safety booklet includes information and operating instructions
required to control your RFexposure and to satisfy compliance requirements.
Radio License (if appropriate)
Governments keep the radios in classification, business 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
classification and the use of your radios, please contact the local government
radio management departments. 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
compliance may void the user’s authority granted by the local government radio
management 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
following two conditions:
(1) This device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that
may cause undesired operation.
• This equipment has been tested and found to comply with the limits for a Class
B digital device, pursuant to 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 interf-
erence 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
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.

• 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 the radio
is in use, a minor burn can result.
Batteries (If appropriate)
• When the conductive material such as jewelry, keys or chains
touch 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 deployment 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 Retekess for assistance regarding repairs and service.
• The adapter shall be installed near the equipment and shall be
easily accessible
• Risk of explosion if battery is replaced by an incorrect type. Dispose
of used batteries according to the instructions.
• Adapter shall be installed near the equipment and shall be easily
accessible.
• The plug considered as disconnect device of adapter.
• The operating temperature of the EUT can’t exceed the specified
range.
Approved Accessories
• This radio meets the RF exposure guidelines when used with the
Retekess accessories supplied or designated for the product. Use
of other accessories may not ensure compliance with the RF
exposure guidelines and may violate regulations.
• For a list of Retekess-approved accessories for your radio model,
visit the following website: http://www.Retekess.com
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 into 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.
CE Requirements:
• (Simple EU declaration of conformity) Henan Eshow Electronic Commerce
Co.,Ltd declares that the radio equipment type is in compliance with the essential
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.retekess.com.
• Disposal
The crossed-out wheeled-bin symbol on your product, literature, or pack-
aging reminds 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 ap-
pareils 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.
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.
• The device complies with RF specifications when the device used at 5mm from
your body. Third-party belt-clips, holsters, and similar accessories used by this
device should not contain any metallic components. Body-worn accessories that
do not meet these requirements may not comply with RF exposure requirements
and should be avoided.
• DO NOT operate the transmitter in areas that are sensitive to electromagnetic
radiation such as hospitals, aircraft, and blasting sites.
Avoid Choking Hazard
Small Parts. Not for children under 3 years.
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.
WARNING
WARNING
WARNING
WARNING
456
EU Importer：
Name：Germany Retevis Technology GmbH
Address：Uetzenacker 29,38176 wendeburg
Warnings
This radio uses electromagnetic energy in the radio frequency (RF) spectrum to
provide communications between two or more users over a distance. RF energy,
which when used improperly, can cause biological damage.
All Retekess radios are designed, manufactured, and tested to ensure they meet
government-established RF exposure levels. In addition, manufacturers also reco-
mmend specific operating instructions to users of the radios. These instructions
are important because they inform users about RF energy exposure and provide
simple procedures on how to control it.
Please refer to the following websites 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 radios are used as a consequence of employment, the Local Government
Regulations requires users to be fully aware of and able to control their exposure
to meet occupational requirements. Exposure awareness can be facilitated by the
use of a product label directing users to specific user awareness information.
Your Retekess radio has a RF Exposure Product Label. Also, your Retekess user
manual, or separate safety booklet includes information and operating instructions
required to control your RFexposure and to satisfy compliance requirements.
Radio License (if appropriate)
Governments keep the radios in classification, business 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
classification and the use of your radios, please contact the local government
radio management departments. 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
compliance may void the user’s authority granted by the local government radio
management 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
following two conditions:
(1) This device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that
may cause undesired operation.
• This equipment has been tested and found to comply with the limits for a Class
B digital device, pursuant to 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 interf-
erence 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
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.