BG4KJH Haha, but I had previously consulted with staff at the local government office about the scope of my license, and they told me that it could be used nationwide. This means that as long as I don't operate outside the city limits, there shouldn't be any problems. However, once I operate outside the city limits, different departments in different areas may have different interpretations of the relevant policies, so I am hesitant to use it freely.