Users manual
Appendix A
Revision #:
A
Date:
07-14-15
Page
15
of
58
RMC
–
Recommended Minimum Navigation Information
△
6
Format:
$XXRMC , hhmmss.sss , a , ddmm.mmmm , a , dddmm.mmmm , a , x.x ,
1
2
3
4
5
6
7
x.x , ddmmyy , x.x ,
a
, a ,
a
*hh <CR> <LF>
8
9
10
11
12
13
# Description
Range
1.
UTC
“hh”: hour
00 - 23
“mm”: minute
00 - 59
“ss.sss”: second
00.000 - 59.999
2.
Status
△
6
A or V
“A”: Data valid
“V”: Data not valid
3-4.
Latitude
“dd”: degree
00 - 90
“mm.mmmm”: minute
00.0000 - 59.9999
“a”: North/South
N or S
5-6.
Longitude
“ddd”: degree
000 - 180
“mm.mmmm”: minute
00.0000 - 59.9999
“a”: East/West
E or W
7.
Speed (kts)
8.
True Course (degree)
9.
Date
“dd”: date
“mm”: month
“yy”: last two digits of the year
10.
Magnetic declination
Note: A null field is output unless magnetic declination information is available.
11.
Correction direction of magnetic declination
Note: A null field is output unless magnetic declination information is available.
12.
Positioning System Mode Indication
A, D or N
“A”: Autonomous
“D”: Differential
“N”: Data Invalid
13.
Navigation Status Indicator
S, C, U or V
“S”: Safe
“C”: Caution
“U”: Unsafe
“V”: Not Valid
