VR-DB2R primo portatile full duplex made in china

[iw9gyy]

salve a tutti........ho trovato questo sul web.....e' full duplex cioe' puo fare ascolto simultaneo in entrambe le bande.....e puo' ricevere mentre trasmette.......


R-DB2R is the first dual-band full-duplex two way radio in china.There are three main advantages below:
Firstly:Full-duplex allows transmitting and receiving to happen simultaneously.
Secondly,our VR-DB2R can meet IPX7 waterproof protection,it can be submersible 1 meter for 30 minutes.This is the first waterproof IPX7 two way radio model in china.
Thirdly,our VR-DB2R has Auto Contact Function.This function is helpful for environment which need close communication, such as climbing, exploration and rescuing. The radio will beep when the users are being out of communication range and this function is ON.


Finally,we will explain each function as below:
   1,Dual-Band Full-Duplex,Dual Frequency
     

    136-174 & 300-350 MHz (TX/RX)
    136-174 & 350-390 MHz (TX/RX)
    136-174 & 400-470 MHz (TX/RX)
    136-174 & 450-520 MHz (TX/RX)
    136-174 & 245-246 MHz (TX/RX)
    144-146 & 430-440 MHz (TX/RX)

   
   Full-Duplex Communication in VHF and UHF band Simultaneously.
     It allows receiving and transmitting to happen in the same time.
   IPX7 Waterproof protection
     The gasket sealed waterproof housing provides superior waterproof protection, equivalent to JIS Grade 7*. Reliable and dependable use in harsh conditions such as rain, snow, sudden change in temperature, Our VR-DB2R can be suitable for all above situations
   
   Human voice prompt information function
     This function is easy to know the channel for the user and master? information.