Nowadays, more and more novice hobbiests prefer digital radios when they choose two way radios. Of course, they do not even know what digital radios are. They will say that digital radio is dual-purpose, and isbetter than analogue radios. Digital radios have long been popular, and enthusiasts often argue about which two way radio to choose. If you are a new Ham, you must have considered your choice, and this article can help you.
Analog radio and digital radio
Analog radio is traditional. It has been around for decades and made great contributions to human society. It entered commercial use in 1933, and of course it had been used in national defense for more than two decades before that. At that time, radio greatly improved the efficiency of information transmission, communications equipment business processes were rapidly evolving trends, radio was the most superior mode of communication, all fields depended on it. After decades of development in analog radio, it had already reached a point where the trend was reaching its peak, so experts created and invented more advanced digital radio systems. Analogue radio is no longer scalable. digital radio is completely different. It uses better encoders, improves sound quality at a certain level, and transmits data while talking, so it is relatively expensive. The emergence of digital radio makes the wireless communication field have a development trend of leaps and bounds compared with simulation, there are mainly the following kinds:
1, larger coverage area;
2, video and voice communication quality improvement;
3, a variety of colorful background management functions. But analogue radio also has some distinct benefits. Analog radio has been the primary and only method of communication networks for a long time.
Although the current digital technology is becoming more and more popular, most amateur radio enthusiasts still use analogue radio technology to communicate. However, with the continuous development trend of digital technology, more and more technical professional radios have already begun to transform into digital radios. Digital radios provide many new functions for business service customers. Data encryption, one-to-one communication. Originally, mobile phones used analogue radio, but as more and more people began to use mobile phones, communications operators were forced to move to data, which offered greater capacity and new uses. What you can get depends on how much you can pay, which means you can buy a well-known brand and model specifications of wireless walkie-talkies. For example, DMR digital radios have at least 30 percent better battery life than analogue radios, which is very useful. The standard analogue radios, when you get close to the edge of the data signal, will start to abate, and at this point you can hear a lot of noise, even intermittent data signals, whereas the digital radios, no matter how far you get away as long as the data signal coverage area, the quality of the digital signal is almost the same. Of course, when you step out of coverage, the data signal goes down fast.
Contemporary two way radios most of the application of FM radio broadcast, system simulation is easier to install and operate than data, which determines that it is more cost-effective than digital radios, but, suffered from the impact of data system software, analog has become more and more unpopular. Digital radios transmit analog signals. Digital radios can incorporate many algorithms for noise cancellation, which means that the application of data radio system software can be clearer and louder than analogue. The advantages of analogue radio You probably think the data is good, analog technology is a very old technology, analogue is going to be obsolete, although it is outdated, but it still has a lot of advantages.
First of all, analog radios are easier to use, without writing frequency these complex operations, the data must time slot, color code, group and so on complex setting and logic, in addition, if most of your local enthusiasts will use analogue radio at this stage, you do not need to digital.
There are some shortcomings of analog radios. Analogue radios do not have a variety of software development platform available, such as ID restrictions, kill and so on, if someone deliberately tamper with electromagnetic interference, it is not easy to find who. Digital radios have many advantages over analogue radios. The DMR dual slot allows for two additional calls on the same frequency. ID, note name information, and GPS can be attached to the data call. Most digital radios are adapted to analogue radios. Although the digital radio is more and more popular, but they still have some problems, set complex, novice must be a long time to understand the write frequency. In addition, digital signals are easily affected by frequency. if a region has an impact, the digital signal will be more and more poor, and the price of digital radio is much more expensive than analogue radio, Because they used vocoders for which they had to pay an annual patent fee.
The big difference between digital and analog is how they transmit radio signals. Digital radios convert analog signals into a digital format to transmit the sound, which is a string of zeros and ones. Analogue radios use an electric current at a similar frequency to sound waves to transmit the sound to a signal receiver. Digital radios save more power, which means that they can work for a longer time. Analog signals are separated farther and farther apart, and data signals are worse. This means that data signals will be more and more completely unrecognizable at the edge of coverage, and the quality of digital radios is not easy to change significantly within the coverage area. Digital radios, which cover a smaller area than analog ones, can transmit data, such as short messages. Digital radios can have GPS, which allows bosses to monitor their employees at all times. Digital radios provide greater security. Analog machinery equipment is cost effective, cost effective, cost effective.