If you put it on the desk,
According to Ministry of Industry and Information Technology Decree No. 67, Article 36 stipulates that entities or individuals using amateur radio stations must accurately record information such as communication time, frequency, mode, and the parties involved in communication in the amateur radio station log and retain it for at least 2 years.
Of course, that's essential.
In practice, this includes inspections conducted by the Ministry of Industry and Information Technology (MIIT) through random sampling, which currently only checks for logs on shortwave radio stations.
Of course, keeping a record of your communications is a good habit for any amateur radio operator (HAM).
For reference
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