Protocol scope and method
Only bytes between frame delimiters are escaped. The tool does not add a checksum unless you use the frame builder.
7e → 7d02; 7d → 7d01; reverse in the opposite direction.
Common questions
Does the JT/T 808 Escape & Unescape 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.