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Appendix A | V5035 Operator and Installation Manual
DTM – Datum Reference
Local geodetic datum and datum offsets from a reference datum.
$--DTM,ccc,a,x.x,a,x.x,a, x.x,ccc*hh<CR><LF>
Field No. Format Description Remark
1 ccc Local datum
2 a Local datum subdivision code ignored
3 x.x, a Lat offset, min, N/S ignored
4 x.x, a Lon offset, min, E/W ignored
5 x.x Altitude offset, m ignored
6 ccc Reference datum
EPV – Command or Report Equipment Property Value
$--DTM,ccc,a,x.x,a,x.x,a, x.x,ccc*hh<CR><LF>
Field No. Format Description Remark
1 a Sentence status flag
2 cc
Destination equipment type
3 c--c Unique identifier
4 x.x Property identifier
5 c--c Value of property to be set
GBS – GNSS Satellite Fault Detection
This sentence is used to support receiver autonomous integrity
monitoring (RAIM).
$--GBS, hhmmss.ss, x.x, x.x, x.x, xx, x.x, x.x, x.x *hh <CR><LF>
Field No. Format Description Remark
1 hhmmss.ss
UTC time of the GGA or GNS fix associated with
this sentence
2 x.x Expected error in latitude
3 x.x Expected error in longitude
4 x.x Expected error in altitude ignored
5 xx ID number of most likely failed satellite ignored
6 x.x
Probability of missed detection for most likely
failed satellite
ignored
7 x.x Estimate of bias on most likely failed satellite ignored
8 x.x Standard deviation of bias estimate ignored
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