What is amateur radio Amateur radio communication technology is an extremely rich technical expertise. It is an important part of the entire radio communication world. It is an amateur hobby that encourages people to engage in radio receiving and sending practices. People who have obtained a license to send letters and are proficient in amateur communications are called "amateur radio homes". When you turn on your transceiver, you can hear sounds from all corners of the world. When you obtain a HAM license, you can easily talk to HAM in any country and region without going abroad. You will be delighted for the first time you have successfully communicated with a foreign friend, and you will be more surprised by the rapid improvement of your knowledge in electronic technology, communication skills, language, human geography and many other aspects! Until then, you will realize more deeply: Amateur radio communication is indeed a very meaningful hobby activity all over the world. The International Telecommunication Union (ITU, InternaTIonal TelecommunicaTIon Union) defines amateur service as "a radio communication service for amateur radio enthusiasts to conduct self-training, mutual communication and technical research. Amateur radio enthusiasts refer to officially approved People who are interested in radio technology are purely personal hobbies and do not involve making profits. " The radio station used for amateur business is called amateur radio staTIon. Amateur radio stations are officially approved by the competent national authorities, and are set up by amateur radio enthusiasts for testing transceiver equipment, conducting technical discussions, communication training and competitions. Amateur radio stations are divided into collective radio stations and personal radio stations: 1. Set up by a group application, and set up by group users as collective amateur radio stations, often referred to as club radio stations (club staTIon) in the world. 2. The radio station set up and applied by the hobbyist is called personal amateur radio station. The only receivers are amateur receivers. Referred to as "SWL" (Short wave listener). Dongguan Andu Electronic Co., Ltd. , https://www.idofuse.com
In any country and any place, radio transmission (including test transmission) without the approval of the national competent authority is strictly prohibited and is an illegal walkie-talkie.