The GPS167 sends for each trigger a message of 31bit length.

Format:

CHx_dd.mm.yy_hh:mm:ss.fffffff<CR><LF>

     x           channel number   (0..1)
     _           Space (ACSII 0x20h)
     
     dd.mm.yy    Date with
                 Day              (01..31)
                 Month            (01..12)
                 Year             (00..99)
                 
     hh:mm:ss.ffffff Time with
                 Hour             (00..23)
                 Minute           (00..59)
                 Second           (00..60)
                 Fraction of second (7 digits)

     <CR>        Carriage return (ASCII 0x0Dh)
     <LF>        Line feed (ASCII 0x0Ah)