The most direct difference is the difference in price, the price of digital radios is generally several times higher than the price of analog radios, which is determined by the market. The traditional analog radio is a communication mode in which the voice, signaling and signal are modulated to the carrier frequency of the two way radio by means of continuous wave and optimized by amplification. It has the advantages of mature technology, perfect system and relatively low cost. The digital radio is a digital communication mode that digitizes the voice signal, uses a specific digital encoding mode and a specific baseband modulation form, and uses a digital signal processor to optimize the communication mode.
1, digital radios can make better use of spectrum resources. Similar to cellular digital technology, digital radios can load more users on a specified channel and improve spectrum utilization, which is a solution to frequency congestion.
2, digital radios improve the quality of calls. Because digital communication technology has an in-system error correction function, it can achieve better voice audio quality in a wider signal environment than analog radios, and the audio received will be less noisy and the sound will be clearer.
3. Digital radios improve and improve voice and data integration, and change the weakness that the control signal decreases with the increase of communication distance. Compared with similar integrated analog voice and data systems, digital radios can provide better data processing and interface functions, so that more data applications can be integrated into the same two-way wireless communication base station structure, and the integration of voice and data services is more perfect and more convenient.
4, compared with the traditional analog radio, the voice anti-interference ability is strong, high confidentiality, the channel occupies a narrower bandwidth, and the data transmission ability is stronger.
5, the digital radio has different standards such as DMR, PDT, C4FM, D-STAR, etc. The digital mode between them is not able to communicate with each other.