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Read this operating instruction carefully 

before using your Retevis RT628 two way 

radio, including the part on Product Safety 

and RF Energy Exposure Compliance

CAUTION

1

RT-628

High/Low Power

Headphone Plug/

Microphone jack

Antenna

Key Lock
Scanning

Roger Beep Icon
CTCSS

TX/RX Icon

VOX
Up/Monitor Button
Menu/Lock Button
Up Button

Battery Level

PTT Button

Channel/Menu

Item

Power/Scan

Button

 Down Button

 MIC

Speaker

Product Features

Product number
Frequency range
Channel number
Channel spacing
Working voltage
Frequency stability
Operating temperature range
The antenna impedance
Overall dimensions
Weight

TECHNICAL PARAMETERS

Rf power
Modulation method
Noise and harmonic
Residual Radiation
Modulation distortion
Maximum deviation

RT628
FRS  
22  
12.5KHz
3.6V
±2.5ppm
-20

~50

50Ω

160*55*28mm
90g

0.5W
11k

Φ

F3E

<

-40dB

≤-35dB
≤7%
≤±5KHz

TRANSMITER

The sensitivity
Modulation receiver bandwidth
Adjacent selective
Intermodulation interference resistance
Spurious response inhibition
Audio output power
Audio distortion

≤0.2uV

±5KHz

≥40dB
≥35dB
≥70dB
≥300mW
≤8%

RECEIVER

Summary of Contents for RT-628

Page 1: ...US RT628 Kids Walkie Talkie User s Guide RT 628 RT 628 ...

Page 2: ...t Features Product number Frequency range Channel number Channel spacing Working voltage Frequency stability Operating temperature range The antenna impedance Overall dimensions Weight TECHNICAL PARAMETERS Rf power Modulation method Noise and harmonic Residual Radiation Modulation distortion Maximum deviation RT628 FRS 22 12 5KHz 3 6V 2 5ppm 20 50 50Ω 160 55 28mm 90g 0 5W 11kΦF3E 40dB 35dB 7 5KHz ...

Page 3: ...f Scan Use UP DOWN to Adjust volume Scroll through menus Installing the AA Batteries Your radio uses 3 AA Alkaline batteries 1 With the back of the radio facing you there are a secret button to release the battery cover and remove 2 Install 3 AA Alkaline batteries as shown on the inside of the battery compartment 3 Re cover the battery cover and press down to secure The walkie talkie can use a NiM...

Page 4: ...g Channels Use scanning to monitor channels for transmissions or to find someone in your group who has accidentally changed channels To start scanning briefly press and release The scan indicator displays When the radio detects channel activity it stops scanning Special Features MENU Use MON to Transmit call tone Use to Select menu options Exit the menu when pressed while in a menu Lock and unlock...

Page 5: ...l tone 3 Press or to set the new call tone To transmit your call tone to other radio you need to set to the same channel and Interference Eliminator Code as your radio then press Note Setting the call tone to 0 disables the call tone feature Voice Activation VOX Voice activation VOX allows you to talk hands free 1 Press PTT and then turn on the radio 2 When Turn the radio on displays 3 To transmit...

Page 6: ...posure only when transmitting in terms of measuring standards compliance Exposure to Radio Frequency Energy Your radio is designed to comply with the following national and international standards and guidelines regarding exposure of human being to radio frequency electromagnetic energy Two Way Radio Operation When using your radio as a traditional two way radio hold the radio in a vertical positi...

Page 7: ... the AC cord or plug provided with the 6 Operational Cautions unit If the plug will not fit the connector have the proper connector installed by a qualified electrician An improper condition can result in a risk of electric shock 4 To reduce the risk of damage to the cord or plug pull the plug rather than the cord when disconnecting the charger from the AC receptacle 5 To reduce the risk of electr...

Page 8: ...between two or more users over a distance It uses radio frequency RF energy or radio waves to send and receive calls RF energy is one form of electroma gnetic energy Other forms include but are not limited to sunlight and x rays RF energy however should not be confused with these other forms of electromagnetic energy which when used improperly can cause biological damage Very high levels of x rays...

Page 9: ...os please contact the local government radio management departments For the following specified classification the USA FRS Australian CB the individual license is not required Compliance with RF Exposure Standards If appropriate Reference to the actual product s Safety Marking Your Retevis walkie talkie is designed and tested to comply with a number of national and International standards and guid...

Page 10: ...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 dista...

Page 11: ... a chest pocket or near the implantation site and carry or use the radio on the opposite side of their body from the implantable device to minimize the potential for interference 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 plac...

Page 12: ...ions require it pull off the road and park before making or answering a call WARNING Hearing Aids Some digital wireless radios may interfere with some hearing aids In the event of such interf erence you may want to consult your hearing aid manufacturer to discuss alternatives Other Medical Devices If you use any other personal medical device consult the manufacturer of your device to determine if ...

Page 13: ...th 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 ...

Page 14: ...MADE IN CHINA Web www retevis com E mail kam retevis com Facebook facebook com retevis ...

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