• DM-666S (DMR).jpg

DM-666S (DMR) Two Way Radio Walkie Talkie

  • Commodity name: DM-666S (DMR) Two Way Radio Walkie Talkie
  • Model Number: DM-666S (DMR)
  • Brand: Kydera
  • Product Origin: Quanzhou
  • Type: Two Way Radio


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Detailed Introduction

DM-666S (DMR) two way radio walkie talkie

Main features for both Digital and Analogue mode

• Vox

• System setting

• Kill

• Emergency alarm

• Stun

• Priority scan

• Definable sidekey

• Revive

• Busy channel lockout

• Scan

• Time-out timer

• DTMF CODEC( Coder& Decoder) (Optional)


Main features for digital mode

• Privacy call

• Digital ID code

Main Features for analogue mode



Model DM-666S DM-666S
Frequency Range(MHz) VHF UHF
136-174Mhz 400-470Mhz
Channel 16
PLL Channel Spacing 12.5/25KHz
Battery Voltage 7.4V DC(Li-ion)
3000mAh polymer battery  Analogue/DPMR:15 hours ; Digital: 23 hours(DPMR)
Battery Life  In battery save mode, with carrier squelch and high TX power, and 5-5-90 duty cycle 
Frequency Stability ±2.5PPM
Case Size 97×58×40mm
Weight (w/Battery) 400g
Packaging Gift box (unit body together with the accessories)
Compatible With American Military Standard(MIL-STD-810C/D/E)
Receiver(Measurements made per TIA/EIA-603)
Channel spacing   12.5kHz/25kHz
Frequency Stability (-20℃,+60℃,+25℃,)  +、-1.5ppm
Analogue Sensitivity 0.25uV(W)(12dB SINAD)
Squelch Selectivity 0.3uV(W) (20dB SINAD)
Digital Selectivity 5% BER;0.3uV
Intermodulation 65dB
Adjacent channel slectivity  65dB@12.5kHz ; 65dB@25kHz
Supurious rejection  65dB
Rated audio  0.7W
Audio distortion @rated audio  3%
FM hum and noise  -40dB@12.5kHz ; -45dB@12.5kHz 
Audio response  +1.-3dbB
Spurious emission  -57dBm 
Transmitter(Measurements made per TIA/EIA-603)
RF Power OutpuT L:1W (VHF)      1W(UHF) ; H:4W (VHF)      5W(UHF)
Modulation limited  +/-2.5kHz@12.5kHz ; +/-5.0kHz@25kHz
Conducted/radiated emission  -36dBm<1Ghz ; -30dBm>1Ghz&<4Ghz
Adjacent channel power  -60dB@12.5kHz ; -60dB@25kHz 
Audio response  +1、-3dbB
Audio distortion  3%
FM modulation  12.5kHz:11KOF3E ; 25kHz:16KOF3E
4FSK digital modulation 12.5kHz only data:7K60FXD ; 12.5kHz data and audio:7K60FXE
Digital vocoder type AMBE(optional)  
Digital Agreement    DPMR   


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