TIDRADIO have digital radios, such as TD-DP580, TD-DP880, which is very popular among hams. Also we have different kinds of analog radio, such as UV5R, F9GP, TD-V90… But for some new users, they have no much idea about what’s the difference between digital radio and analog radio, today, let’s learn something together.
Digital radio is the use of digital technology to transmit or receive across the radio spectrum. They may refer to digital transmission by radio waves, including digital broadcasting, and especially to Digital audio radio services. The term is also applied to radio equipment using digital electronics to process analog radio signals.
Analog walkie-talkie is the use of analog communication technology designed to simulate the walkie-talkie ( also known as traditional walkie-talkie ), it is the stored signal modulation to the radio transmission frequency. Phase-locked loop and voltage-controlled oscillator ( VCO ) to generate the RF carrier signal, after buffer amplification, excitation amplification, power amplifier, resulting in the rated RF power, through the antenna low-pass filter to suppress harmonic components, and then launched through the antenna.
Traditional analog walkie-talkie is the voice, signaling, signal modulation in a continuous wave mode to the radio carrier frequency, and after amplification and other optimization of a communication mode. With the technology is mature, perfect system, the cost is relatively low. Digital walkie-talkie is the digital voice signal to a specific digital coding and specific baseband modulation form, and the use of digital signal processor to optimize the data communication mode, so cost is relatively high.
Digital equipment does not send a continuous signal. A digital signal, made up of a mathematical code, is sent in block segments. When a digital signal encounters interference, the entire signal is lost because of the compartmentalized blocks of the digital signal. However, when the signal is present it is easier to tune into than an analog signal due to the mathematical exactness of the broadcast.
Radio stations are working toward converting to a digital signal. When the signal is strong the sound is clear and crisp. If the signal is weak, however, it is likely to be lost completely.
Digital handheld radios struggle to relay quality sound because the digital system cannot distinguish background noise from the sound of a voice, which is a concern for emergency personnel. In a controlled environment like a radio station, sound booth digital signals offer superior sound quality. However, the technology may not be ready for all applications.
While most people consider analog radio signals the “old way,” they still offer major advantages over digital. Analog radios can extend their signal range by simply turning up the power, if needed. An analog radio signal can also deliver a true voice, so a speaker near loud background noise is able to be heard and understood.
Comments will be approved before showing up.