Protocol scope and method
Status bits combine boolean states and sign conventions. Hemisphere bits change the sign of decoded coordinates.
Set states = bit mask; latitude/longitude signs follow hemisphere bits.
Common questions
Does the JT/T 808 Vehicle Status 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.