Every ham with a radio license has a call sign. The call sign of the ham and the name of the ham are the same. They are used to identify a person, but the call sign has two characteristics that the name does not have: one is uniqueness, and the call sign of each ham is global. The only thing is that there will never be two identical call signs in the world; the second is regional, that is, according to the call sign, you can know the country or region where the ham is located, for example, the call sign beginning with W6, indicating that the ham is in California, USA. The call sign at the beginning of VE3 indicates that the ham is in Ontario, Canada, and so on. How to listen to it and how to listen to it:

　　The meaning of the walkie-talkie call sign and call sign

　　Prefix and suffix of the intercom call sign

　　A call sign can be divided into two parts: a prefix and a suffix. Take the call sign VE3XD as an example. VE3 is the prefix and XD is the suffix. Most prefixes consist of one or two letters and a number, such as W6 (United States) or VE3 (Canada), and a small portion of the prefix consists of a number and a letter, such as 3X (Guinea) and 9K (Kuwait). For various reasons, some countries have several, a dozen or even dozens of prefixes. For example, W1 to W9 are US prefixes, VE1 to VE7 are Canadian prefixes, while others have only one prefix, such as Guinea. And Kuwait.

　　If the prefix is used to distinguish the country, then the suffix is used to distinguish the ham. The suffix has at least one letter and a maximum of three letters, which are generated in the order of English letters, and are sequentially assigned to each ham that has obtained the radio license, such as VE3XA→VE3XB→VE3XC→VE3XD. In addition to the standard call sign described above, in some countries, there are two special call signs: one is a commemorative call sign to commemorate a special event, such as 7S2000M is a Swedish ham specially set up to commemorate the arrival of the year 2000 The temporary call sign; the other is the honor call sign, that is, the ham can apply for a call sign with his or her name or initials. For example, Bob can apply for KA5BOB, and Willian Henry Harrison can apply for KA5WHH. ,and many more.

　　The meaning of the Chinese call sign

　　The Chinese call sign has about 40 prefixes, but only 10 are actually used, and the most common ones are only 5. Let us take the call sign of BG5VIP as an example to introduce the meaning of each part of the Chinese call sign. We first divide the BG5VIP into three parts, namely BG-5-VIP.

　　The first part is the prefix, where BA stands for first-grade ham, BD stands for secondary ham, BG stands for third- or fourth-grade ham, and BY stands for collective radio, so BG5VIP is a third- or fourth-grade ham.

　　2 The second part is also a prefix to indicate the area where the ham is located. China's amateur radio station is divided into ten districts, of which Beijing is the first district, Fujian, Jiangxi, and Zhejiang provinces are the fifth district, so BG5VIP is a ham in one of the three provinces. Below are the specific divisions of the ten districts.

　　District 1: Beijing

　　Zone 2: Heilongjiang Jilin Liaoning

　　Zone 3: Hebei Inner Mongolia Shanxi Tianjin

　　District 4: Jiangsu Shandong Shanghai

　　District 5: Fujian, Jiangxi, Zhejiang

　　District 6: Anhui, Henan, Hubei

　　District 7: Guangdong Guangxi Hainan Hunan

　　District 8: Guizhou Sichuan Yunnan

　　District 9: Gansu Ningxia Qinghai Shaanxi

　　Zone 0: Tibet Xinjiang

　　The third part is the suffix, which is used to distinguish different hams.

　　Outside mainland China, the most common prefix for Taiwan call sign is BV, such as BV2AC, the prefix of Hong Kong call sign is VR2, such as VR2UNA, and the prefix of Macau call sign is XX9, such as XX9AU.

　　Call sign when remote communication and mobile communication

　　In Canada, VE3 is the prefix of Ontario and VE6 is the prefix of Alberta. If an Ontario ham VE3XD is connected in Alberta, his call sign should be VE3XD/VE6, read as VE3XD portable VE6. Conversely, if an Alberta ham VE6KJ is in Ontario, his call sign should be VE6KJ/VE3, read as VE6KJ portable VE3. In China, when this happens, the letters in the prefix are usually omitted (only), leaving only numbers, such as BA4IA/7 (4 district hams in the 7th district).

　　If the Canadian ham VE3XD is in California (prefixed with W6), his call sign should be VE3XD/W6 or W6/VE3XD.

　　If the VE3XD is connected to a moving vehicle such as a car, train, ship, or airplane, his call sign should be VE3XD/M, read as VE3XD mobile (please note: don't read VE3XD portable mobile).