BD7PDW
BG6QED
Does this explanation still apply? The old methods have been discontinued. The content regarding cross-location transmissions has been removed. Of course, I'm not sure about the actual effect of the prefix. Old HAM, could you explain it? Licenses restrict communication ranges; call signs define zones; regulatory bodies exchange information for cross-regional wireless communications; and there is a trend towards nationwide unified management.
However, the new method adopts an open approach to both publicly available technology and communication protocols; it strictly requires accurate recording of radio logs.
The logs can reflect everything, and "Tonglian" can also be used to provide further explanation. I'm not sure if requiring a prefix is actually reducing constraints or lowering the barrier to entry.
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