Walkie talkie XJT8938265 evaluation: "Roll King" in walkie talkie XJT8938265 evaluation: "Roll King" in walkie talkie XJT8938265 evaluation: "Roll King" in walkie talkie XJT8938265 evaluation: "Roll King" in walkie talkie XJT8938265 evaluation: "Roll King" in walkie talkie

The walkie talkie covers a wide range. Here, we will collectively refer to radio communication equipment operating in the ultra short wave frequency band (VHF 30-300 MHz, UHF 300-3000 MHz) as radio walkie talkies. In fact, according to relevant national standards, they should be referred to as ultra short wave FM radio telephones. People usually refer to handheld wireless telephones with small power and size as "walkie talkies", which were previously referred to as "walkie talkies" or "walkie talkies"; A wireless telephone with high power and large volume that can be installed in vehicles (ships) or fixed for use is called a "radio", such as a car mounted station (car mounted machine), a ship mounted station, a fixed station, a base station, a transfer station, etc.

The basic principle of digital walkie talkie is to convert analog voice into digital signal, and then modulate it to RF. Since the transmission is a digital signal, of course, this device can also directly transmit data. The emergence of digital interphones is also to save Radio spectrum, so most digital interphones are a voice channel equivalent to occupy 6.25kHzk bandwidth, that is, half of the frequency is saved than general analog interphones.