Long distance dmr uhf handheld police use professional Radio transceiver walkie talkie

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    US $19.00
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Quick Details
Place of Origin:
Fujian, China (Mainland)
Brand Name:
Model Number:
105*55*32mm(without antenna)
Frequency Range:
UHF 400-470MHz / VHF 136-174Mhz
Storage Channel:
16 Channels
Talk Range:
Output Power:
Working Voltage:
7.2V DC
210g(with battery and antenna)
Antenna impedance:
Working Temperature:
Frequancy Stability:
Battery capacity:
1-5 business days

Product Description


HD-668 Technical Specification
Output Power


Current   1.5A
Modulation Distortion   <5%(300-3000Hz)
Maximum Frequency Deviation   ≤ 5KHz
CTCSS Frequency Deviation   0.75KHz±50Hz
Remanent Radiation   7uW
Modulation Mode   16KøF3E / 11køF3E
Remanent Modulation   ≤ -35dB
RF Sensitivity


Silent Sensitivity


Audio Frequency Power   ≥500mW
Audio Distoftion   <5%
Modulation Receiver Bandwidth   ± 7KHz
Spurious Rejection   ≥55dB
Selectivity   ≥65dB
Intermodulation   ≥60dB



Main Function :

1. Frequency Range: UHF400-470MHZ
2. 16 channels
3. Output power, 5W
4. Wide Narrow Band by PC programming
5. Sound indication for channel number
6. Scan Function
7. Time-Out Timer
8. Battery saving model
9. Low capacity warning
10. Busy channel lock out
11. Torch light function
12. VOX function, handheld free
13. QT/DQT
14. PC Programable




Package Including:

1* Radio

1* Antenna
1* Li-ion Battery
1* Charger
1* Belt Clip
1* Hand Strape
1* User Manual




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Company Information



Quanzhou Chierda Electronic Telecom Co,. Ltd, whcih is in Quanzhou, Fujian, China. With more than 20 years development, Chierd have developed Multi-Style, Multi-Model and Multi-Function Two Way Radio. Such as Digital Two Way Radio, Professional Walkie Talkie, LCD Screen Radio, Car Mobile Radio, Repeater, Antenna, Earpiece and others related accessory etc. 
There are advanced capacity of research and improve product testing technoloegy, complete quality assurance system, a variety of professional and efficient marketing team in Chierda. 
We are devote ourselves to providing all kinds of economical and pratical principles for global enterprises and customers, to achiee Win-Win situation.





Production Process






Our Service & FAQ


  • 24 hours online service
  • OEM/ODM order service are acceptable
  • Support sample order
  • Support HSBC, Paypal, Western Union, VISA payment ways


Q. Why sometimes your partner's voice is intermittent?

A. Please note that you are within normal communication range, If you want use radio in distance range, please change other antenna with a bigger output power.

If still same problem, please send the radio back to your authorized dealer repair.


Q. Can’t turn on talky and even it is switch on, it often shuts off automatically?

A. Please check the battery contacts on the walkie talkie. If it is broken or twisted, please return the radio to your authorized dealer for maintenance during warranty.


Q. Can't transmit or receiver signal with other members?

A. First, please verify that the channel frequency and the CTCSS you are used the same as those of your group members. Please make sure that you and your partners are all within the radio coverage, If the channel frequency and the CTCSS are the same.


Q. Why sometimes received voice from other groups?

A. Two way solutions.You can change another channel or change another channel frequency by PC software.


Q. Which is better – VHF or UHF?

A. Depends on the terrain. The UHF signal is attenuated or absorbed by foliage, rough terrain and trees, VHF does better outdoors. The VHF has difficulties penetrating steel and concrete, UHF does better in and around buildings. If you use the radios in both environments, we prefer using UHF band.




Any question please feel free to send inquiry and contact us!



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