RP
Packet Decoder
Bulk GPS protocol decoder · CRC check · time-sorted KML
v1.0
◐
1 · Input packets
Paste hex (with/without spaces), ASCII packets or raw logs — one or many per line. Up to
512
MB.
Drop log files here
or
choose files
(.txt .log .csv — large files go straight to the server)
Protocol
Default IMEI
(when log has no login packet)
Time zones
Display / export time
Concox / Jimi device time
JT808 device time
AIS-140 CSV device time
C-DAC fixed-width device time
Decode packets
Load samples
Clear
0%
2 · Summary
Protocols
Packet types
(click to filter)
Devices
3 · Export
KML points and line are sorted by packet GPS time per device, so history/re-uploaded packets fall into place and the track has no jumps.
Points
Line
Valid GPS only
Remove duplicates
Exclude history packets
Point label
TIME
DATETIME
None
Drop jumps over
km/h
Split line on gap >
min
Device
All devices
Decoded data (TXT, Protocol Analysis format)
All packets (without non-GPS traffic)
All lines incl. non-GPS traffic
Decoded OK only
Device → server packets only
Server → device replies only
Packets with position only
Problems only (CRC fail / unmatched / unsupported)
Input order
Packet time order
Export decoded data (TXT)
KML
KMZ (compressed)
Positions CSV
Packets CSV
Unmatched list
Packets
Map preview
All status
Decoded OK
CRC fail
Unmatched
Unsupported type
Non-GPS traffic
All problems
All protocols
All devices
Both directions
Device → server
Server → device
Input order
Packet time
With position
#
Line
Dir
Status
Protocol
Type
IMEI
Time
Lat, Lng
Speed
Ign
Power
Alarm / note
‹ Prev
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50
100
250
500
Refresh with export filters