NMEA-0183 message: PTNL,VHD
Heading information
NOTE – The heading computation in this message is computed from the moving baseline vector, which requires a two-antenna system.
An example of the PTNL,VHD message string is:
$PTNL,VHD,030556.00,093098,187.718,-22.138,-76.929,-5.015,0.033,0.006,3,07,2.4,M*22
PTNL,VHD message fields
|
Field |
Meaning |
|---|---|
|
0 |
Message ID $PTNL |
|
1 |
VHD |
|
2 |
UTC of position in hhmmss.ss format |
|
3 |
Date in mmddyy format |
|
4 |
Azimuth |
|
5 |
Rate of change of azimuth = azimuth/time |
|
6 |
Vertical angle |
|
7 |
Rate of change of vertical angle = vertical/time |
|
8 |
Range |
|
9 |
Rate of change of range between antenna = range/time |
|
10 |
GPS Quality indicator: 0: Fix not available or invalid |
|
11 |
Number of satellites used in solution |
|
12 |
PDOP |
|
13 |
M |
|
14 |
The checksum data, always begins with * |