Furuno INMARSAT-C FELCOM 18 Operator's Manual page 170

APPX. 6 DIGITAL INTERFACE
SM3: SafetyNet Message, Circular Address
$**SM3,A,x.x,xxxxxx,xxx,x,x,xx,xx,xxxx,xx,xx,xx,xx,llll.ll,a.yyyyy.yy,a,xxx*hh<CR><LF>
1 2 3 4 5 6 7 8
1. MSI status field
2. Unique message number generated by the receiving EGC terminal
3. Unique message sequence number assigned by LES originating the message
4. 3-digit numeric ID of LES originating the MSI message
5. Ocean region code
6. Priority code of the MSI message
7. 2-digit service code (fixed)
8. 2-digit presentation code (fixed)
9. Year of message reception (UTC)
10. Month of message reception (UTC)
11. Day of message reception (UTC)
12. Hour of message reception (UTC)
13. Minute of message reception (UTC)
14,15. Circular area address, center Latitude - N/S
14,16. Circular area address, center Longitude - E/W
14,17. Circular area address, radius in NM
SM4: SafetyNet Message, Rectangular Area Address
$**SM4,A,x.x,xxxxxx,xxx,x,x,xx,xx,xxxx,xx,xx,xx,xx,llll.ll,a.yyyyy.yy,a,xx,xxx*hh<CR><LF>
1 2 3 4 5 6 7 8
1. MSI status field
2. Unique message number generated by the receiving EGC terminal
3. Unique message sequence number assigned by LES originating the message
4. 3-digit numeric ID of LES originating the MSI message
5. Ocean region code
6. Priority code of the MSI message
7. 2-digit service code (fixed)
8. 2-digit presentation code (fixed)
9. Year of message reception (UTC)
10. Month of message reception (UTC)
11. Day of message reception (UTC)
12. Hour of message reception (UTC)
13. Minute of message reception (UTC)
14,15. Rectangular area address, South-West corner Latitude - N/S
14,16. Rectangular area address, South-West corner Longitude - E/W
14,17. Extent of rectangle area in Latitude degrees North
14,18. Extent of rectangle area in Latitude degrees East
AP-36
14,16
14,15
9 10 1112 13
14,16
14,15
9 10 1112 13
14,17
14,18
14,17