Is digital walkie talkie an inevitable trend?

Digital walkie-talkies have many advantages, the first of which is that they can make better use of spectrum resources.

Similar to cellular digital technology, digital radios can load more users on a designated channel and improve spectrum utilization, which is a solution to frequency congestion and has long-term implications.

The second is to improve the call quality. Due to the in-system error correction function of digital communication technology, compared with analog walkie-talkies, it can achieve better voice audio quality in a wider range of signal environments, and it will receive less audio noise and sound clearer.

Finally, improve and improve voice and data integration, changing the weakness of the control signal that decreases with increasing communication distance. Compared with similar integrated analog voice and data systems, digital walkie-talkies 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 complete and convenient.

These three characteristics make digital walkie-talkies an inevitable trend in the development of walkie-talkies in the future.

Digital walkie-talkie has strong confidentiality, less frequency occupancy, great use of frequency resources, clear voice, call, future technology gradually matures, the cost will fall, and it will inevitably replace the analog machine.

Abstract:Digital walkie-talkie is a digital walkie-talkie designed with digital technology. The digital walkie-talkie digitizes the voice signal and transmits it in the form of digital encoding, that is, all modulation on the transmission frequency of the walkie-talkie is digital.

Digital-pair cameras have the benefits of improved spectrum utilization, improved voice quality, and improved voice and data integration. So do you know what is the difference between a digital walkie-talkie and an analog walkie-talkie? Let's take a look at the relevant knowledge.

Advantages of digital walkie-talkies.

The first is that it can make better use of spectrum resources, similar to cellular digital technology, digital radios can load more users on a designated channel such as 25kHz, improving spectrum utilization, which is a solution to frequency congestion and has long-term significance.

The second is to improve the voice quality. Because digital communication technology has an in-system error correction function, compared with analog walkie-talkies, it can achieve better voice audio quality in a wider range of signal environments, and it will receive less audio noise and sound clearer.

The last point is to improve and improve the voice and data integration, change the weakness of the control signal with the increase of communication distance, compared with similar integrated analog voice and data systems, digital walkie-talkies 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 for voice and data service integration is more complete and more convenient.

How to adjust the channel of the digital walkie-talkie.

1. Under normal circumstances, the right knob is the power switch and volume control button, and the clockwise power is turned on, and the volume will become louder and louder.

2. The middle knob is the frequency fine-tuning knob, which is the plus sign and the reverse is the minus sign.

4. The walkie-talkie needs to dock the frequency table, which needs the frequency table of the walkie-talkie 1---16 gears.

5. As long as the frequency setting is adjusted correctly, any walkie-talkie can talk.

The difference between digital walkie-talkie and analog walkie-talkie.

The traditional analog walkie-talkie is a communication mode that modulates voice, signaling, and signals to the carrier frequency of the walkie-talkie in a continuous wave mode, and optimizes the processing such as amplification. It has the advantages of mature technology, perfect system and relatively low cost.

The digital walkie-talkie is a digital communication mode that digitizes the voice signal, uses a specific digital coding method to mess with lead and a specific baseband modulation form, and uses a digital signal processor to optimize the digital communication mode. Compared with the traditional analog walkie-talkie, it has the significant advantages of strong voice anti-interference ability, high confidentiality, narrower channel occupation bandwidth, and stronger data transmission ability. It should be noted that walkie-talkies that use only digital control signals, such as trunking system walkie-talkies, are not considered digital walkie-talkies.

1. The transmission mode is different.

Analog walkie-talkie modulates the stored signal to the walkie-talkie transmission frequency, while digital walkie-talkie digitizes voice information and transmits it in the form of digital encoding, that is, all modulation on the transmission frequency of the walkie-talkie is digital.

2. There are differences in the utilization rate of spectrum resources.

Radio spectrum resources are not inexhaustible, and the scarcity of radio spectrum is deepening day by day compared to the ever-expanding demand for human use. Most digital walkie-talkies occupy a wide bandwidth equivalent to a voice channel, which can load more users on a designated channel and improve spectrum utilization.

3. There is a difference in call quality.

Because digital communication technology has an in-system error correction function, it can achieve better voice audio quality in a wider range of signal environments than analog walkie-talkies.

4. There are differences in voice and data integration performance.

Compared with similar integrated analog voice and data systems, digital walkie-talkies 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 complete and convenient.

The difference between their working characteristics lies in the first two words of the two things you asked, one is to use digital signal transmission, and the other is to use analog signal transmission. Because digital signals are easily processed by computers, the communication ability, function and quality of digital signals are much better than analog signals. That's the difference in their performance.

Just like today's mobile phones, like the original Big Brother, one uses a digital signal and the other uses an analog signal. The so-called digital signal is to encode the analog signal, just like the tape we used to listen to and the *** we listen to now

The effect is also obvious.

In terms of design technology, wireless communication products can be divided into:

Analog products: communication products that use analog technology to modulate the stored signal to the transmission frequency of the walkie-talkie for information dissemination and communication.

Digital products: communication products that use digital technology to digitize voice information and disseminate it in the form of digital encoding.

At present, MotoTRBO uses Time Division Multiple Access (TDMA) digital technology in digital walkie-talkies, Hytera also adopts TDMA dual time slot technology, and Beifeng uses DPMR and DMR digital trunking communication technologies. Hope it helps.

1.On the one hand, technically speaking, analog walkie-talkie technology is backward and wastes valuable radio frequency resources.

2.Another for enterprises, digital walkie-talkies are innovative tools to improve productivity, for business leaders, productivity and security prompt the willingness to spend money to buy more advanced security communication tools, and to meet these two vital business needs has also been an important driving force for investment and innovation in communication tools, the goal is the same, it is this demand that affects the development of new technologies, in order to further improve productivity.

3.Digital walkie-talkie has the advantages of richer functions, clear voice, and better signal.

The walkie-talkie can make calls without any network support, and there is no phone charge. Wide range of applications, **cheap.