Protocol scope and method
The base body is parsed separately from optional extra-information TLVs. Latitude and longitude use unsigned integer values scaled by 10⁶.
lat = uint32 / 1,000,000; speed = uint16 / 10 km/h.
Common questions
Does the JT/T 808 0x0200 Location 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.