Q: What is amateur radio? A: "Amateur radio" usually refers to the amateur business of radio, that is, the radio communication business for amateur radio lovers to carry out self-training, mutual communication and technical research. Q: What are amateur radio enthusiasts? A: Amateur radio enthusiasts refer to those who are officially approved by the competent telecommunications departments of gove...
Antenna is a relatively common device, widely used in radio, television, radio communications, radar, navigation, electronic countermeasures, remote sensing, radio astronomy and other fields. Antenna is a device that can effectively radiate electromagnetic waves to a specific direction in space or can effectively receive electromagnetic waves from a specific direction in space. All the equipment t...
The same frequency is the premise that two walkie-talkie scan talk. If they are not on the same frequency, even walkie-talkies of the same brand and model cannot talk; if the frequency is the same, even walkie-talkies that are not of the same brand can talk. So it matters. Generally speaking, there are two types of handheld radios: a professional walkie-talkie, and an amateur walkie-talkie, which ...
The walkie-talkie should use the original battery. If the battery used by the walkie-talkie is not the original battery, it will have a negative effect on the walkie-talkie itself. The use of different types of batteries and different types of chargers will also affect the use of the walkie-talkie battery, especially the service life of the walkie-talkie battery.We provide all kinds of matching or...
There are many intercoms on the market that claim to be 10km intercoms, 50km intercoms, 100km, 500km or even 1000km intercoms, but when you actually use them you will find that the data may have to be cut in half.As we all know, high power walkie talkies can make the communication distance longer, which can reach 5-15 KM or even further in the suburbs. So,what is the reason for the shortening of t...
When travelling outdoors，the purchase of walkie-talkies is very important. As we all know, the frequency of walkie-talkies is generally divided into U/V（ultra high frequency/very high frequency)range. Due to different frequencies, the former has strong penetrating power and is suitable for use in mountains, forests and cities, while the latter has a long transmission distance and is suitable ...
The analog radio is (also known as a traditional walkie-talkie) designed with analog communication technology, which modulates the stored signal to the walkie-talkie's transmission frequency. However，the advantage of the SIM card radio is that it breaks through the limitation of distance. There is no limit to the distance of the national intercom. As long as there is a network, the intercom can be...
The earpiece is an electrical to acoustic transduction device that traces its history back to 1924 when it was invented by German scientist Eugen Beyer. As an accessory for intercoms, it serves to make them easier to use. The advantage of using a walkie-talkie earpiece is that it can keep quiet and prevent information leakage. Usually, you need to hold the walkie-talkie in one hand to talk. With t...
