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A menu appears showing the prefixes of the available NMEA sentences.
A check mark next to a prefix means the prefix is in use. Use ↑ ↓ → ←
to select a prefix, then press
ENT to turn off the prefix. (Press ENT again
to check the box and turn a prefix on.)
NOTE:
The names of the NMEA sentences are abbreviated in this menu.
These are the functions of the various selectable prefixes:
• GLL transmits latitude and longitude of present position, time of
position fix, and status.
• GGA transmits time, position and fix related data.
• APB transmits autopilot information.
• RMC and RMB transmits navigation information messages.
• GSA and GSV transmits fix mode, DOP values and satellites in
view information.
• DBT transmits the depth below the transducer.
• DPT transmits the depth
• MTW transmits the water temperature.
4. When the desired prefixes are checked or unchecked, press
EXIT|EXIT|EXIT|EXIT to return to the previous page.
Compatibility With Various VHF Radios
The Digital Selective Calling (DSC) feature in marine radios is rela-
tively new technology. The U.S. Coast Guard, for example, imple-
mented its first DSC-capable systems in Atlantic City, N.J. and Chinco-
teague, VA in September, 2003. However, the entire U.S. DSC rescue
system won't be operational until Sept. 30, 2006.
As more marine electronics manufacturers enter this growing market, other
connectivity issues with your unit may appear. You can check for known
compatibility issues by visiting our web site, www.lowrance.com. Look in
the Manuals section for updated documents for your sonar/GPS unit.