początek nie wygląda na zasmiecony
$PSTIS,*61
$GPGSV,4,1,13,02,12,320,,04,46,284,,07,09,188,,10,00,291,*72
$GPGSV,4,2,13,11,02,172,,13,63,240,,16,09,088,,17,03,240,*77
$GPGSV,4,3,13,20,53,118,,23,87,101,,25,30,181,,31,13,036,*77
$GPGSV,4,4,13,32,27,108,*46
[...]