Protocol scope and method
The decoder expects a complete 0x7e-delimited frame. It reverses JT/T 808 escaping before reading the common header and final XOR checksum.
7e + escaped(header + body + BCC) + 7e.
Common questions
Does the JT/T 808 Frame Decoder leave my browser?
No application upload is used. Avoid putting sensitive production data in shareable URLs.
Is this a standards compliance test?
No. Confirm the edition and vendor profile with licensed documents and your target platform.
Offline diagnostic aid. Verify fields, version and vendor extensions before production use.