UNICORECOMM Unicore - GPHDT Heading Log

Command and Log Reference
39
ID
Field
Description
Symbol
Example
2
# msgs
Total number of message, 1 to 9
x
3
3
msg #
Message number, 1 to 9
x
1
4
# sats
Total number of satellites in view, may not
the same as the number in use.
xx
09
5
prn
Satellite PRN number:
GPS=1~32
GLONASS=38~74
Galileo=75~119
SBAS= 120~ 138
BDS=161~197
xxx
03
6
elev
Elevation, degrees, 90°maximum
xx
51
7
azimuth
Azimuth, degrees True, 000 to 359
xxx
140
8
SNR
SNR(C/No), 00-99 dB-Hz, 0 when not
tracking
xx
42
…
…
…
…
…
…
Next satellite PRN number, elev, azimuth,
SNR,
……
Last satellite PRN number, elev, azimuth，
SNR,
Variable
*xx
Checksum
*hh
*72
variable
[CR][LF]
Sentence terminator
[CR][LF]
6.1.10 GPHDT Heading Log
This command is used to log actual heading information in degrees from True
North.
To log the information requires receiver working in heading mode.
Recommend Input:
Output 1Hz GPHDT message from current serial port:
GPHDT 1
Output 1Hz GPHDT message from com2:
GPHDT COM2 1
LOG output:
$GPHDT,178.7236,T*15
Table 6-11: GPHDT Message Description
ID
Field
Description
Symbol
Example
1
$GPHDT
Log header
$GPHDT
2
heading
Heading, degree
X.X
178.7236
3
TRUE
Degrees True
T
T