Furuno SC-130 - Page 106

APPENDIX 7 DIGITAL INTERFACE (IEC 61162-1 EDITION 4(2010-11))
AP-18
• GSA: GNSS DOP and Active Satellites
• GST: GNSS Pseudorange Error Statistics
• GSV: GNSS Satellites in View
• HBT - Heartbeat Supervision Sentence
• HDG: Heading, Deviation and Variation
$--GSA,a,x,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,x.x,x.x,x.x,h *hh<CR><LF>
1 2 3 4 5 6 7
1. Mode (M=manual, forced to operate in 2=2D 3=3D mode
A=automatic, allowed to automatically switch 2D/3D)
2. Mode (1=fix not available 2=2D 3=3D)
3. ID number of satellites used in solution (01 to 96, null)
4. PDOP (0.0 to 50.0),null
5. HDOP (0.0 to 50.0),null
6. VDOP (0.0 to 50.0),null
7. GNSS System ID (See GRS table:System ID)
$**GST,hhmmss.ss,x.x,x.x,x.x,x.x,x.x,x.x,x.x *hh<CR><LF>
1 2 3 4 5 6 7 8
1. UTC time fo the GGA or GNS fix. (000000.00 to 235959.99)
2. RMS value of the standard deviation of the range inputs to the navigation process. Range inputs
include pseudoranges & DGNSS corrections. (1 to 999, null)
3. Standard deviation of semi-major axis of error ellipse (meters) (0 to 655.34, null)
4. Standard deviation of semi-minor axis of error ellipse (meters) (0 to 655.34, null)
5. Orientation of semi-major axis of error ellipse (degrees from true north) (0 to 180, null)
6. Standard deviation of latitude error (meters) (0 to 999.9, null)
7. Standard deviation of longitude error (meters) (0 to 999.9, null)
8. Standard deviation of altitude error (meters) (0 to 999.9, null)
$**GSV,x,x,xx,xx,xx,xxx,xx._____,xx,xx,xxx,xx, h *hh<CR><LF>
1 2 3 4 5 6 7 8 9 10
1. Total number of messages (1 to 4)
2. Message number (1 to 4)
3. Total number of satellites in view (00 to 14)
4. Satellite ID number (01 to 96),null
5. Elevation, degrees (00 to 90),null
6. Azimuth, degrees true (000 to 359),null
7. SNR(C/No) (00 to 99(dB-Hz), null when not tracking)
8. Second and third SVs
9. Fourth SV
10. Signal ID (See GRS table:Signal ID)
$**HBT,x.x,A,x*hh<CR><LF>
1 2 3
1. Configured repeat interval (50.0(s))(+1)
2. Equipment status (A=Normal)
3. Sequential sentence identifier (0 to 9)
$**HDG,x.x,x.x,a,x.x,a*hh<CR><LF>
1 2 3 4 5
1. Magnetic sensor heading, degrees (0.0 to 359.9)
2. Magnetic deviation, degrees (0.0 to 180.0)
3. E/W
4. Magnetic variation, degrees (0.0 to 180.00)
5. E/W