<para>
This option tells GPSBabel whether to read (on input) or write (on output) 
GPGGA sentences.  The default is to read or write GPGGA sentences.  To 
disable GPGGA sentences, specify <option>gpgga=0</option>.
</para>
<para>
GPGGA sentences contain the location and quality of the GPS position fix.
</para>
