Retevis RT628S User manual

Wireless Radio
RT628S
User Manual EN(01~12)

01
Key Functions
Display Icon Instructions
1
2
3
4
11
5
6
7
8
9
10
1. PTT
2.Menu/Power Key
3.SCAN/UP Key
4.Speaker
5.Accessories/Charging Jack
6.LCD Display
7.Safe Mode Key
8.Call Tone/Key Lock
9.Monitor/DOWN Key
10.Microphone
11.Antenna
Channel Number
Call Tone
CTCSS/DCS Code
Battery Indicate
Key Lock
Roger Beep
Scan
Power
Transmitting/Receiving
VOX

02
Battery Installation and Function
Your device uses 3 x AA alkaline batteries.
1.Place the back of the device to you, there is a hidden buckle to turn on/off the battery cover.
2.Install 3 x AA alkaline batteries as shown inside of the battery case.
3.Reinstall the battery cover and lock it down, the batteries can be replaced with NI-MH battery.

03
Battery Power Measurement
The battery capacity is full, the battery power is high . When the battery displays 1 grid, the device is in
low battery mode and makes a low battery warning in the form of the prompt.
Note:
Take out the battery from the radio to save it. The battery may become corrosion by the time and do the forever
damage to your device.
-Don’t mix the old/new/alkaline/ NI-MH batteries together to use.
-Charge the provided NI-MH battery every 3 months when not using the radio.
Turn ON/OFF the Device
After installing the batteries, the device is turned on and has a prompt. LCD display will briefly display all
function icons, then it will display the available channel and CTCSS/DCS. Press the Power key, the radio is
turned off.
Set Volume
-Press UP key to increase the volume.
-Press the DOWN key to decrease the volume.
-The magnitude of the volume is indicated by the displayed number 1-16.
Set Channel
1.Shortly press the Menu key and the current channel flashes.
2.Press the UP key or DOWN key to choose channel number.
3.Press the PTT key to confirm and save channel settings.
Communication
When communicating, all the devices of the group set the same channel number and CTCSS/DCS code; When
you start to communicate, please keep 2-3inch between the device and the mouth. Press the PTT key to talk.
When you finish talking, release the PTT key. (Press the key to transmit, release the key to receive).
Featured Function
CTCSS/DCS Code
The distribution of the CTCSS/DCS code can decrease the interference between radios, but radios can’t
communicate with each other with different CTCSS/DCS codes. To ensure your private communication, each
channel has 0-121 CTCSS/DCS codes to be set.
1.Shortly press the NENU/Power key twice or until the CTCSS/DCS code starts to flash.
2.Press the UP key or DOWN key to choose code 0-121 or 121-0.
3.Press the PTT key to save code settings.
You can use the procedure to set different CTCSS/DCS codes for each channel.
Note: if you want to communicate with the other device without setting CTCSS/DCS codes, you must set your
CTCSS/DCS code to 0.
TOT
To prevent accidental transmission or occupying channel for a long time, if you press the PTT key to
continuously transmit for 60s, the device will make a continuous warning tone and stop transmitting.
Key Lock
To prevent accidentally changing the setting of the radio, press the CALL/Key Lock for 3s or until the key lock
icon is displayed. At this time, you can turn on/off the radio, adjust the volume, receive, transmit, transmit call

04
tone and monitor channel. But other functions are locked. To unlock the device, press the CALL/Key Lock for 3s
or until the key lock icon is not displayed.
Scan Channel
Use scan to monitor the reeving of the channel or find the people who accidentally change the channel in your
group. Press the SCAN key for 3s and the scan icon appears, the radio starts to scan. When detecting the
channel activities, you can hear the receiving. To answer, press the PTT key in 5s and the channel will be
confirmed.
Enter the Scan Again
If the scan stops on the unwanted channel, shortly press the SCAN key, the scan restores and enters next
effective channel scan.
Set and Send Call Tone
Your device can send different call tones to other devices in your group to remind the people you want to
communicate.
Set Call Tone
1.Press the MENU key until the call tone number flashes.
2.Press the UP key or DOWN key to choose the needed call tone.
3.Press the PTT key to confirm the selected call tone.
Send to call tone other devices, the device needs to set the same channel and CTCSS/DCS codes as yours,
then press the call tone key to call.
Note: the call tone is set to 0, all call tones are ineffective.
VOX Function
The VOX function allows the user to start transmitting towards the microphone without pressing the PTT key.
1. To turn on the VOX function, press the MENU key until the VOX icon appears, and the current setting flashes
(OF,1,2,3).
2. Press the UP key or DOWN key to choose OFF or sensitivity level.
3. Press the PTT key to choose the new level.
Set Dual Standby Channel
1.Press the MENU key until the CH icon appears and the current setting flashes (OF, 1-21).
2.Press the UP key or DOWN key to choose the monitor channel.
3.Press the PTT key to save the dual channel settings.
4.Two channels display alternatively.
Check Channel Before Transmitting
Your device has 21 channels and they display with the cyclic method. To achieve uninterrupted communication,
please don’t communicate on the channel if other people are communicating on that channel. To check channel
activities before communication, long press the MON/DOWN key, the channel can be used if you listen to the
white noise.
Set Squelch Level
1.Press the MENU key until the SQL icon appears, and the current level number will flash (1-6).
2.Press the UP key or DOWN key to choose the needed squelch level: 01=high receive sensitivity,
02-05=middle receive sensitivity, 06= low receive sensitivity
L3 = High sensitivity
L2 = Middle sensitivity
L1 = Low sensitivity
L0 = Turn off the VOX function

05
Set Transmitting Power
1.Press the MENU key until the PR icon appears. The current setting power level flashes (HI or LO).
2.Press the UP key or DOWN key to choose high/low power.
3.Press the PTT key to save the new setting of the transmitting power and the correspond power icon displays.
Set Safe Mode
Press the SAFE-M key for 3s until the SF icon appears, the device enters the safe mode. Press the SAFE-M
key for 3s again, the device exits the safe mode.
Note: in the safe mode, other function can’t be used except the PTT function and volume adjustment.
Frequency List
This FRS device is approved for USA
1
2
3
4
5
6
7
8
9
10
11
462.5625
462.5875
462.6125
462.6375
462.6625
462.6875
462.7125
467.5625
467.5875
467.6125
467.6375
1W
1W
1W
1W
1W
1W
1W
0.5W
0.5W
0.5W
0.5W
12
13
14
15
16
17
18
19
20
21
22
0.5W
0.5W
0.5W
1W
1W
1W
1W
1W
1W
1W
1W
467.6625
467.6875
467.7125
462.5500
462.5750
462.6000
462.6250
462.6500
462.6750
462.7000
462.7250
Channel Frequency
(MHz)
Max Power
Out put Channel Frequency (MHz)
Max Power
Out put

06
CTCSS 38
39
40
41
42
43
44
45
46
47
48
79
80
81
82
83
84
85
86
87
88
89
23
25
26
31
32
43
47
51
54
65
306
311
315
331
343
346
351
364
365
371
411
49
50
51
52
53
54
55
56
57
58
90
91
92
93
94
95
96
97
98
99
100
71
72
73
74
114
115
116
125
131
132
412
413
423
431
432
445
464
465
466
503
506
59
60
61
62
63
64
65
66
67
68
101
102
103
104
105
106
107
108
109
110
111
134
143
152
155
156
162
165
172
174
205
516
532
546
565
606
612
624
627
631
632
654
69
70
71
72
73
74
75
76
77
78
112
113
114
115
116
117
118
119
120
121
223
226
243
244
245
251
261
263
265
271
662
664
703
712
723
731
732
734
743
754
No Code No Code No Code No Code

07
RF ENERGY EXPOSURE AND PRODUCT SAFETY GUIDE FOR
TWO-WAY RADIOS
•User instructions should accompany the device when transferred to other users.
•Do not use this device if the operational requirements described herein are not met.
This two-way 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 Retevis two-way radios are designed, manufactured, and tested to ensure they meet government-estab-
lished RF exposure levels. In addition, manufacturers also recommend specific operating instructions to users
of two-way radios. These instructions are important because they inform users of 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/
When two-way 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 Retevis two-way radio has a RF Exposure Product Label. Also, your Retevis user manual, or
separate safety booklet includes information and operating instructions required to control your RF exposure
and to satisfy compliance requirements.
Radio License(only applicable to licensed radio)
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 classification and the use of your two 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 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
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.

08
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.
(Only Applicable to GMRS radio station):
A valid individual license is required to operate a GMRS station. To obtain an individual license, an applicant
must be eligible and follow the applicable rules and procedures established by FCC. The applicant must pay
the required application and regulatory fees. Each individual license in the GMRS will normally have a term of
ten years from the date of grant or renewal, and may be renewed pursuant to the procedures of FCC. To obtain
a GMRS operator license, you need FCC Form 605 & 159, we suggest visiting the FCC website at
https://www.fcc.gov/wireless/support/fcc-form-605, which includes necessary instructions. More questions about
the license application, please contact the FCC at 1-888-225-5322 or go to the FCC's website:
http://www.fcc.gov.
According to FCC rules, any individual who holds an individual license may allow his or her immediate family
members to operate his or her GMRS station or stations. Immediate family members are the licensee's spouse,
children, grandchildren, stepchildren, parents, grandparents, stepparents, brothers, sisters, aunts, uncles,
nieces, nephews, and in-laws.
•(Only applicable to industrial environment)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 generates, 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.
•(Only applicable to home)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 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 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) Shenzhen Retevis Technology 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.retevis.com.
•Restriction Information
This product can be used in EU countries 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.
•Disposal
The crossed-out wheeled-bin symbol on your product, literature, or packaging reminds you that in the European

09
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.
RF Exposure Compliance and Control Guidelines and Operating Instructions
•Occupational/Controlled Radio, this radio is designed for and classified as “Occupational/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”.
To control your exposure and ensure compliance with the occupational/controlled environment exposure limits,
always adhere to the following procedures. 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. Using approved
body-worn accessories is important because the use of Non-Retevis approved accessories may result in
exposure levels, which exceed the IEEE/ICNIRP RF exposure limits.
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 necessary information or less, is important
because the radio generates measurable RF energy exposure only when transmitting in terms of measuring for
standards compliance.
•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 head 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. 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.
WARNING

10
Hand-held Mode(if applicable)
• 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(if applicable)
•When placing or receiving a phone call, hold your radio product as you would a wireless telephone. Speak
directly into the microphone. Do not use the equipment when you are driving
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 Choking Hazard
Small Parts. Not for children under 3 years.
WARNING
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, hospitals 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.
• 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.
WARNING
Protect your hearing:

11
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
••BATTERY WARNING: KEEP OUT OF REACH OF CHILDREN
•Store spare batteries securely
•If the battery compartment (if applicable) does not close securely, stop using the product and
keep it away from children
•If you think batteries might have been swallowed or placed inside any part of the body, seek
immediate medical attention
•Dispose of used batteries immediately and safely
Long transmission
•When the transceiver is used for long transmissions, the radiator and chassis will become
hot.
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 Retevis for assistance regarding repairs and service.
•The adapter shall be installed near the equipment and shall be easily accessible
•This radio meets the RF exposure guidelines when used with the Retevis 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 Retevis-approved accessories for your radio model, visit the following website:
http://www.Retevis.com
WARNING
WARNING
WARNING
Avoid Burns
Safety Operation
Approved Accessories
For downloading further resources:
Brochures, Software/Firmware, Manual etc, Pls contact
your direct reseller first OR go to website retevis.com and
check “support” in the each product link to download it.

12
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Guarantee
Model Number:
Serial Number:
Purchasing Date:
Dealer:
User’s Name:
Country:
Post Code:
Telephone:
Telephone:
Address:
Email:
Remarks:
1.This guarantee card should be kept by the user, no
replacement if lost.
2.Most new products carry a two-year manufacturer’s
warranty from the date of purchase. Further details, pls read
http://www.retevis.com/after-sale/
3.The user can get warranty and after-sales service as
below:
·Contact the seller where you buy.
·Products Repaired by Our Local Repair Center
4.For warranty service, you will need to provide a receipt
proof of purchase from the actual seller for verification
Exclusions from Warranty Coverage:
1.To any product damaged by accident.
2.In the event of misuse or abuse of the product or as a
result of unauthorized alterations or repairs.
3.If the serial number has been altered, defaced, or
removed.

MADE IN CHINA
Shenzhen Retevis Technology Co.,Ltd.
Web:www.retevis.com
7/F, 13-C, Zhonghaixin Science&Technology Park, No.12 Ganli
E-mail:[email protected]
Facebook:facebook.com/retevis
6th Road, Jihua Street, Longgang District, Shenzhen, China