GlobalSat Protocol (GSr/GSb/GSh / $ lines)
GlobalSat on TCP 5043: GSr/GSb CSV closed by ! with ACK CR, or $ IMEI decimal-minute lines whose flag 1 is void.
On Traxelio
What Globalsat trackers do once they are on Traxelio
Hardware that speaks this protocol
Devices that speak Globalsat
Point this protocol at Traxelio
Point Globalsat at Traxelio
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1
Capture a GlobalSat fingerprint
Confirm GSr/GSb CSV closed by ! or a $ IMEI line with decimal-minute lon/lat.
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2
Point GlobalSat at 5043
Configure only GlobalSat to TCP 5043. GlobalSat on 5043 is not Globalstar on 5185 or GoSafe on 5078.
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3
Treat ACK CR as GS* only
GSr/GSb are answered ACK plus CR. A $ line has no reply. Check the map.
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4
Prove one GlobalSat fix
Send one GSr or $ sentence whose flag is not 1 and whose lon/lat parse, then verify a map point.
Still offline after GPS lock
Globalsat still not landing
- GlobalSat aimed at the wrong neighbor
GlobalSat on 5043 is not Globalstar HTTP on 5185 or GoSafe *GS on 5078.
- Session up, empty map
Flag 1 is void. GSh without date plus lon/lat letters will not plot. Send GSr with those fields filled.
- No ACK on a $ line, assumed dead
Only GSr/GSb CSV is answered ACK plus CR. A $ line has no reply. Check the map.
FAQ
Globalsat leftover questions
Does GlobalSat send Concox 0x7878 frames?
No. GlobalSat is GSr/GSb CSV closed by ! or a $ IMEI decimal-minute line. Concox families use 0x7878 binary login.
Which prefix starts a GlobalSat sentence?
GSr or GSb for CSV, GSh for the short map, or $ for the IMEI decimal-minute line.
Does GlobalSat send an ACK?
GSr and GSb are answered ACK plus CR. A $ line has no reply.
Which flag value voids a GlobalSat fix?
Flag 1 is void on both the GS CSV path and the $ path. An empty flag on GS CSV is also void.
Can a GlobalSat unit run SMS setup or a controlled-action flow?
This dialect is positions only. A map fix still needs GSr or $ lon/lat, not an SMS round trip.