9
GPS OPERATION (ADVANCED)
9-17
Transmitting NMEA data
Set a GPS sentence to transmit GPS data in the DV
mode�
D Setting the GPS data sentence
1� Open the NMEA SET screen.
»
GPS > GPS TX Mode > NMEA
2� Touch “GPS Sentence.”
3� Select the GPS sentence.
• Displays “✓” when the sentence is set to ON.
L The selectable GPS sentences are RMC, GGA, GLL,
VTG, GSA, and GSV. The GGA sentence is set to
ON as the default GPS sentence.
L To reset to the default setting, push
, and then
touch “Default.”
4� Repeat step 3 to set the GPS sentence.
L Up to 4 GPS sentences can be set at a time.
5� To close the “GPS Sentence” screen, push
several times.
• Returns to the standby screen, then is
displayed.
NOTE:
• Set “GSV Sentence” to “OFF” when sending the GPS
message to conventional digital transceivers. (p. 9-2)
• If “Position Input” is set to “Manual,” the transceiver
automatically sets the NMEA sentence, and transmits
it along with the manually entered position data in
“Manual Position.”
»
GPS > GPS Set > Position Input
»
GPS > GPS Set > Manual Position
• Note that if “GPS Auto TX” is set to any other option
than “OFF,” data is automatically transmitted according
to the set time�
»
GPS > GPS Auto TX
L If “Position Input” is set to “Manual,” the GPS
Automatic Transmission function is not activated.
Contents of GPS sentence
Sentence
Lon
/Lat
Alt UTC
Date
(UTC)
Status
2D
/3D
COG
(True)
SOG
(knot)
Others
RMC
✔ ✔ ✔ ✔ ✔ ✔
Magnetic variation, Mode Indicator
GGA
✔ ✔ ✔ ✔
Number of satellites in use, HDOP,
Geoidal separation, Age of Dierential
GPS data, Dierential reference station ID
GLL
✔ ✔ ✔
Mode Indicator
VTG
✔ ✔
COG (Magnetic north), SOG (km/h),
Mode Indicator
GSA
✔ ✔
PRN number of satellites used in
solution, PDOP, HDOP, VDOP
GSV
Total number of sentences, Sentence
number, Total number of satellites in
view, Satellite information (ID, Elevation,
Azimuth, S/N)