Simrad V5035 - Page 100

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Appendix A | V5035 Operator and Installation Manual
HDG – Heading, Deviation and Variation
Heading (magnetic sensor reading), which if corrected for devia-
tion will produce magnetic heading, which if offset by variation will
provide true heading.
$--HDG, x.x, x.x, a, x.x, a*hh<CR><LF>
Field No. Format Description Remark
1 x.x Magnetic sensor heading, degrees
2 x.x,a
Magnetic deviation, degrees E/W
3 x.x,a Magnetic variation,degrees E/W
HDT – Heading True
Actual vessel heading in degrees true produced by any device or
system producing true heading.
$--HDT, x.x, T*hh<CR><LF>
Field No. Format Description Remark
1 x.x, T Heading, degrees true
LRF – AIS Long-Range Function
This sentence is used in both long-range interrogation requests and
long-range interrogation replies. The LRF-sentence is the second
sentence of the long-range interrogation request pair, LRI and LRF
(see the LRI-sentence).
$--LRF,x,xxxxxxxxx,c—c,c—c,c—c*hh<CR><LF>
Field No. Format Description Remark
1 x Sequence number
2 xxxxxxxxx
MMSI of requestor
3 c—c Name of requestor
4 c—c Function request
5 c—c Function reply status