RETEVIS MB1 CB Radio User Manual

RETEVIS MB1 CB Radio

Product Information

• Specifications:
  • Model: MB1 CB Radio
  • Volume Control: Clockwise to increase volume, anti-clockwise to decrease volume
  • Channel Control: Squelch level adjustment
  • Lock Mode: Keys can be locked to prevent accidental button presses
  • Emergency Channel: Default channels are 9 and 19

Product Usage Instructions

• Volume Control:
• Turn the knob clockwise to increase the volume and anti-clockwise to decrease the volume.
• Channel Control:
  • To adjust the squelch level:
  • Press the designated button until LCDs “SQ”.
  • The bigger value indicates a higher squelch level.
  • Note: Higher squelch levels require a stronger signal to open the speaker for incoming calls.
• ASQ Function:
  • To turn on the ASQ function:
  • Long press a specific button until LCDs “AQ”.
  • Adjust the ASQ level by pressing the corresponding button until the desired level is shown on the LCD.
• Lock Mode:
  • To lock/unlock keys:
  • Long press a specific key for over 2 seconds to lock the keys (LCDs lock symbol).
  • Repeat the long press to unlock the keys (the lock symbol disappears).
• Emergency Channel:
  • To access emergency channels:
  • Press a specific key until the LCD displays “EMG”.
  • Use the key to choose the second programmed emergency channel.
  • Press another key to return to the last normal channel.

FAQs

• Q: How do I reset the radio to default settings?
  • A: To reset the radio to default settings, refer to the user manual for specific instructions on resetting procedures.
• Q: What should I do if the radio display shows an error code?
  • A: If the radio display shows an error code, consult the troubleshooting section of the user manual or contact customer support for assistance.

KNOW ABOUT THIS RADIO

LCD

Function and Features

1. AM/FM MODE
2. 7 COLOR DISPLAY
3. VOX FUNCTIONS
4. SQ, ASQ FUNCTION
5. RF GAIN FUNCTION
6. SCAN FUNCTION
7. RB FUNCTION
8. NB FUNCTION
9. BEEP SOUND
10. TOT FUNCTION
11. HI-CUT FUNCTION
12. EMG CALL
13. BACKLIGHT BRIGHTNESS ADJUSTABLE
14. KEY LOCK FUNCTION
15. CTCSS/DCS CODE
16. BUILT-IN 12124V CONVERTOR

HOW TO USE THIS RADIO

Power On/Off the Radio

1. Turn the VOL switch clockwise to power on the radio, the LCDs the Norms and then display the channel number.
2. Turn the VOL switch anti-clockwise, until hear Ka Ta and the radio is powered off.

Volume Control

• Turn clockwise to increase volume, and anti-clockwise to decrease volume.

Channel Control

1. Short press microphone L UP] or [DN] to change the working channel.
2. Long press microphone UP] or [DN ] can fast change the working channel.

Squelch level Control (short press)

1. Short press , until LCDs ” ” stands for SQ level, the bigger value stands for high squelch level.
2. Short press microphone [ UP ] or [DN ] to change SQ level.
3. Long press microphone [ UP] or [DN ] can quickly change SQ level.
4. Short press or wait for 10 seconds to store and exit.
   • Note: The higher the SQ level selected, the stronger the signal required to open the speaker and hear the calling.

ASQ Control (long press)

1. Long press , until LCDs ” AQ”, the ASQ function turned on.
2. Short press , until LCDs” ” stands for ASQ level, the bigger value stands for high squelch level.
3. Short press microphone [ UP Jor [DN ] to change ASQ level.
4. Long press microphone [ UP J or [DN ] can fast change ASQ level.
5. Short press or wait for 10 seconds to store and exit.
6. Long press the key again to turn on the SQL function.
   • Note: The higher the ASQ level selected, the stronger the signal required to open the speaker and hear the calling.

Mode Control (short press)

1. Short press , the key to switch between AM /F M mode.
2. The LCDs are the selected mode.

Keypad Lock (long press)

1. Long press the key for over 2 seconds to lock the keys and LCDs.
2. Long press key for over 2 seconds again to unlock the keys disappear from the LCD.
   • Note: In lock Mode all keys except PTT are valid.

Emergency Channel (short press)

1. First press , the key to choose the first programmed emergency channel, LCD displays EMG.
2. Second press , the key to choose the second programmed emergency channel.
3. Third press , the key to return to the last normal channel, EMG disappears from LCD.

Note: The default emergency channels are channel 9 and channel 19. See menus Emergency Channel Set page 8 for the emergency channel configuration.

Scan Function (short press)

1. Hold the UP or Down key for over 5 seconds and release the key when hear a “Di” beep sound to start the scan, “SCAN” flashes in the LCD.
2. Short press the UP or Down key to change the scan direction
3. Short press [EMG] or [PTT] to exit the scan.

VOX function

• The VOX function allows transmitting by speaking into the original microphone without pressing the [ PTT] switch.
• Press [ PTT] + key to activate the VOX function, LCD microphone icon “ ” ‘, and then press [ PTT] + key to disable the VOX function. The microphone icon disappeared.

Note: When VOX is turned on, the microphone symbol flashes in the LCD.

Talkback Level

This function allows you to adjust the volume of your walkie-talkie.

1. Start the intercom function.
2. Hold down the [PTT] switch, then the key increases or the Key decreases the Talkback Level .
3. Release [ PTT] switch and save Talkback Level.

Functions (long press)

• Long press key to enter in menu and set a different function.

Norms Control

1. Hold to power on radio, until LCDs the norms.
2. Short press microphone [ UP ] or [DN ] to choose wanted norms.
3. Power off and power on again.

Install External Speaker

• Choose an 82 external speaker with a 3.5mm connector.
• Note: This radio is BTL output, the two pins of the external speaker must NOT connect to the ground or the radio case. Otherwise, it will break the radio

Menu Operations

1. Long press key to enter the menu list.
2. Short press microphone [UP]or [DN] or or to choose a menu to be.
3. Short press key to enter the function setting parameter of the chosen function, and the parameter blinks on LCD.
4. Short press microphone [UP]or [DN] or or to choose a wanted setting.
5. Short press key to validate the mode and exit settings.
6. Long press or wait 20 seconds to store exit MENU.

Emergency Channel Setting

1. Long press key to enter the menu list.
2. Short press microphone [ UP]or [DN] or or to choose NO.19 function menu or NO.20 function menu, LCD displays or
3. Short press key, the number” ” or number” “blinks on the LCD.
4. Short press microphone [ UP]or [DN] or or to choose the emergency channel from OF to valid. ( default channel 9 for EMG1, default channel for EMG is 19.
5. Short press key, and the channel number flashes.
6. Short press microphone [ UP]or [DN] or or to choose the channel.
7. Short press key to validate the channel, AM or FM blinks on LCD.
8. Short press microphone l UP]or [DN] or or to choose the mode AM or FM.
9. Short press key to validate the mode and exit settings.
10. Long press key or wait 20 seconds to store exit MENU.

Resume Factory Default

1. Long press key to enter the menu list.
2. Short press microphone [ UP ]or [ DN] or or to choose NO.21 function menu, LCD displays falshes in the LCD.
3. Short press key to enter the menu selection, flashes in the LCD.
4. Long press key key until LCD only displays
5. Release key, and the radio automatically resets.

SPECIFICATION

GENERAL

Modulation Mode| AM/FM
Frequency Range| 26.965-27.405MHz
Frequency Tolerance| ±5.0ppm
 nput Voltage| 12/24V
Dimensions| 124x101x36mm
Weight| 428g
Operating Temperature Range| -20C to +50C

Current Drain

| Transmit| 3A MAX
Receive| Squelched 0.3A
VOL Max| 0.7A
Antenna Connector| UHF, SO-239
TRANSMITTER
Power Output| 4 Watts FM/AM
Transmission inteference| inferior to 4nW
Frequency Response| 300-3000Hz
Modulated signal distortion| inferior to 5%
Output Impedance| 50 ohms
RECEIVER
Sensitivity| Less than 1uV for 10dB(S+N)/N
Adjacent Channel Rejection| 60dB

IF Frequencies

| 1st 10.695MHz
2nd 455KHz

Automatic Gain Control(AGC)

| Less than 10dB change in audio
Output for inputs from 10 to 50000uV
Squelch| less than 1uV
Audio Output Power| 1Watts at 80 less than 10% distortion
Frequency Response| 300-3000Hz
FREQUENCY LIST

CH.NO.| Freq.(MHz)| CH.NO.| Freq.(MHz)
1| 26.965| 21| 27.215
2| 26.975| 22| 27.225
3| 26.985| 23| 27.255
4| 27.005| 24| 27.235
5| 27.015| 25| 27.245
6| 27.025| 26| 27.265
7| 27.035| 27| 27.275
8| 27.055| 28| 27.285
9| 27.065| 29| 27.295
10| 27.075| 30| 27.305
11| 27.085| 31| 27.315
12| 27.105| 32| 27.325
13| 27.115| 33| 27.335
14| 27.125| 34| 27.345
15| 27.135| 35| 27.355
16| 27.155| 36| 27.365
17| 27.165| 37| 27.375
18| 27.175| 38| 27.385
19| 27.185| 39| 27.395
20| 27.205| 40| 27.405

CTCSS CODE LIST

DCS CODE LIST

Code No.| DCS

(   )

| Code No.| DCS

(   )

| Code No.| DCS

(   )

| Code No.| DCS

(   )

---|---|---|---|---|---|---|---
1| 023| 27| 152| 53| 311| 79| 466
2| 025| 28| 155| 54| 315| 80| 503
3| 026| 29| 156| 55| 325| 81| 506
4| 031| 30| 162| 56| 331| 82| 516
5| 032| 31| 165| 57| 332| 83| 523
6| 036| 32| 172| 58| 343| 84| 526
7| 043| 33| 174| 59| 346| 85| 532
8| 047| 34| 205| 60| 351| 86| 546
9| 051| 35| 212| 61| 356| 87| 565
10| 053| 36| 223| 62| 364| 88| 606
11| 054| 37| 225| 63| 365| 89| 612
12| 065| 38| 226| 64| 371| 90| 624
13| 071| 39| 243| 65| 411| 91| 627
14| 072| 40| 244| 66| 412| 92| 631
15| 073| 41| 245| 67| 413| 93| 632
16| 074| 42| 246| 68| 423| 94| 654
17| 114| 43| 251| 69| 431| 95| 662
18| 115| 44| 252| 70| 432| 96| 664
19| 116| 45| 255| 71| 445| 97| 703
20| 122| 46| 261| 72| 446| 98| 712
21| 125| 47| 263| 73| 452| 99| 723
22| 131| 48| 265| 74| 454| 100| 731
23| 132| 49| 266| 75| 455| 101| 732
24| 134| 50| 271| 76| 462| 102| 734
25| 143| 51| 274| 77| 464| 103| 743
26| 145| 52| 306| 78| 465| 104| 754

CAUTION : User’ instructions should accompany the device when transferred to other users.

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 department equipment authorization for this radio could violate the rules.

Radio License

• Governments keep the radios in classification. Two-way radios are only operated on authorized radio frequencies that are regulated by the local radio management departments (such as FCC, ISED, OFCOM, ANFR, BFTK, Bundesnetzagentur, and so on.).
• For the detailed classification and the use of your two-way 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.

FCC

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.
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 B digital device. 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 by 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 the receiver.
• Connect the equipment to 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.

IC Licence-exempt radio apparatus
This device contains licence-exempt transmitters)/receivers) 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.

СЕ:

• (Simple EU declaration of conformity) Shenzhen Retevis Technology Co., Ltd. declares that the radio equipment type complies 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.
• For the intended country of use, please refer to the package.

Disposal

• The crossed-out wheeled bin symbol on your product, literature, or packaging reminds you that all electrical and electronic products, batteries, or accumulators 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 and rules in your area.lug.

RF Safety

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. Please refer to the following websites for more information on what RF energy exposure is and how to control your exposure to ensure compliance with established RF exposure limits: http://ww-w.who.int/en/. Transmit no more than the rated duty factor 75% of the time. 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. For users who wish to further reduce their exposure, some effective measures to reduce RF exposure include:

• Reduce the amount of time spent using your wireless device.
• Use a speakerphone, earpiece, headset, or other hands-free accessory to reduce proximity to the head (and thus head exposure).
• While wired earpieces may conduct some energy to the head and wireless earpieces also emit a small amount of RF energy, both wired and wireless earpieces remove the greatest source of RF energy (handheld device) from proximity to the head and thus can greatly reduce total exposure to the head.
• Increase the distance between wireless devices and your body.

This radio is designed for and classified as “General population/uncontrolled use”. General population/uncontrolled environments are defined as locations where there is exposure of individuals who have no knowledge or control of RF exposure level.

RF Safety distance

Speak directly into the microphone. During operation, the separation distance (1.2 m, Safe distance) between the user and the antenna is subject 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 are the recommended minimum lateral distance away from a properly installed externally mounted antenna according to installation instructions.

Electromagnetic Interference/Compatibility

Nearly every electronic device is susceptible to electromagnetic interference (EMI) if inadequately shielded, designed, or otherwise configured for electromagnetic compatibility. During transmissions, your radio generates RF energy that can cause interference with other devices or systems. To avoid such interference, turn off the radio in areas where signs are posted to do so, such as hospitals or healthcare facilities.

Persons with pacemakers, implantable cardioverter defibrillators (ICDs) or other active implantable medical devices should:

• Consult with their physicians regarding the potential risk of interference from radio frequency transmitters, such as portable radios (poorly shielded medical devices may be more susceptible to interference).
• Turn the radio OFF immediately if there is any reason to suspect that interference is taking place.
• Do not carry the radio in a chest pocket or near the implantation site, and carry or use the radio on the opposite side of the body from the implantable device to minimize the potential for interference.
• Hearing Aids: Some digital wireless radios may interfere with some hearing aids. In the event of such interference, 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 it is adequately shielded from RF energy. Your physician may be able to assist you in obtaining this information.

Turn off your radio in the following conditions:

• Turn off your radio before entering any area with a potentially hazardous or explosive atmosphere. Only especially qualified radio types should be used in such areas as “Intrinsically Safe”. Note: the areas with potentially explosive atmosphere referred to above include blasting caps, blasting areas, inflammable gas, dust particles, metallic powders, grain powders, fueling areas such as below decks on boats, fuel or chemical transfer or storage facilities, areas where the air contains chemicals or particles (such as grain, dust or metal powders) and any other area where you would normally be advised to turn off your vehicle engine. Areas with potentially explosive atmospheres are often – but not always posted.
• Turn off your Radiocommunication device when taking on fuel or parked at gasoline service stations.
• Do not use any radio that has a damaged antenna. If a damaged antenna comes into contact with the skin when the radio is in use, a burn can result.
• Turn off your radio before removing or installing accessories.
• When the transceiver is used for long transmissions, the radiator and chassis will become hot.

Use of Communication Devices While Driving

• Always check the laws and regulations on the use of radios in the areas where you drive. Use of Communication Devices, for example, mobile radio, may not be allowed.
• Give full attention to driving and the road.
• Use hands-free operation. if available.
• Pull off the road and park before making or answering a call, if driving conditions or regulations so require.
• Do not place a portable radio in the area over an airbag or in the airbag deployment area. The radio may be propelled with great force and cause serious injury to occupants of the vehicle when the airbag inflates.

Protect your hearing

• Use the lowest volume necessary to do your job. Turn up the volume only if you are in noisy surroundings.
• Limit the amount of time you use headsets or earpieces at high volume.
• Use carefully with the earphone maybe possible excessive sound pressure from earphones and headphones can cause hearing loss.
• CAUTION: Exposure to loud noises from any source for extended periods may temporarily or permanently affect your hearing. The louder the radio 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: CHOKING HAZARD-Small Parts. Not suitable for children under 3 years old.

Guarantee

Remarks:

1. This guarantee card should be kept by the user, with no replacement if lost.
2. Most new products carry a two-year manufacturer’s warranty from the date of purchase. For further details, pls read http://www.retevis.com/after-sale/.
3. The user can get a 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.

CONTACT

• Shenzhen Retevis Technology Co., Ltd.
• 1/5, 13-C, Zhonghaixin Science&Technology Park, No. 12 Ganli
• 6th Road, Jihua Street, Longgang District, Shenzhen, China
• Web: www.retevis.com.
• E-mail:kam@retevis.com.
• Facebook:facebook.com/retevis.

References

• RETEVIS - We are together
• Retevis.com After-sale service
• ear-system.de/ear-verzeichnis/sammel-und-ruecknahmestellen.jsf

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