[8525, TyTN, MDA Vario II, JasJam Software Upgradin] apokryphus:
Mark, good point will checck it. Btw here is my output from nmea:

NMEA$GPGGA,,,,,,0,,,,,,,,*66

NMEA$GPRMC,,NMEA$GPGSV,1,1,02,25,,,21,08,,,21*74

NMEA$GPGGA,,,,,,0,,,,,,,,*66

NMEA$GPRMC,,VNMEA$GPGSV,1,1,02,25,,,21,08,,,21*74

NMEA$GPGGA,,,,,,0,,,,,,,,*66

NMEA$GPRMCNMEA$GPGSV,1,1,02,25,,,21,08,,,21*74

NMEA$GPGGA,,,,,,0,,,,,,,,*66

NMEA$GPRMC,NMEA$GPGSV,1,1,02,25,,,21,08,,,21*74

NMEA$GPGGA,,,,,,0,,,,,,,,*66

NMEA$GPRMC,,V,NMEA$GPGSV,1,1,03,25,,,21,08,,,21,27,,,21*73

NMEA$GPGGA,,,,,,0,,,,,,,,*66

NMEA$GPGSV,1,1,03,25,,,21,08,,,21,27,,,21*73

NMEA$GPGGA,,,,,,0,,,,,,,,*66

NMEA$GPGSV,1,1,03,25,,,21,08,,,21,27,,,21*73

NMEA$GPGGA,,,,,,0,,,,,,,,*66

NMEANMEA$GPGSV,1,1,03,25,,,21,08,,,21,27,,,21*73

NMEA$GPGGA,,,,,,0,,,,,,,,*6NMEA$GPGSV,1,1,03,25,,,21,08,,,21,27,,,21*73

NMEA$GPGGA,,,,,,0,,,,,,,,*66NMEA$GPGSV,1,1,03,25,,,21,08,,,21,27,,,21*73

NMEA$GPGGA,,,,,,0,,,,,,,,*66

NMEA$NMEA$GPGSV,1,1,03,25,,,21,08,,,21,27,,,21*73

NMEA$GPGGA,,,,,,0,,,,,,,,*66

NMEA$NMEA$GPGSV,1,1,03,25,,,21,08,,,21,27,,,21*73

NMEA$GPGGA,,,,,,0,,,,,,,,*NMEA$GPGSV,1,1,04,25,,,21,08,,,21,27,,,21,22,,,21*77

NMEA$GPGGA,,,,,,0,,,,,,,,*6NMEA$GPGSV,1,1,04,25,,,21,08,,,21,27,,,21,22,,,21*77

NMEA$GPGGA,,,,,,0,,,,,,,NMEA$GPGSV,1,1,04,25,,,21,08,,,21,27,,,21,22,,,21*77

NMEA$GPGGA,,,,,,0,,,,,,,,NMEA$GPGSV,1,1,04,25,,,21,08,,,21,27,,,21,22,,,21*77

NMEA$GPGGA,,,,,,0,,,,,NMEA$GPGSV,1,1,04,25,,,21,08,,,21,27,,,21,22,,,21*77

NMEA$GPGGA,,,,,,0,,,,,,NMEA$GPGSV,1,1,04,25,,,21,08,,,21,27,,,21,22,,,21*77

NMEA$GPGGA,,,,,,0,,,NMEA$GPGSV,1,1,04,25,,,21,08,,,21,27,,,21,22,,,21*77

NMEA$GPGGA,,,,,,0,,,,NMEA$GPGSV,1,1,04,25,,,21,08,,,21,27,,,21,22,,,21*77

NMEA$GPGGA,,,,,,0,,,NMEA$GPGSV,1,1,04,25,,,21,08,,,21,27,,,21,22,,,21*77

NMEA$GPGGA,,,,,,0,NMEA$GPGSV,1,1,04,25,,,21,08,,,21,27,,,21,22,,,21*77

NMEA$GPGGA,,,,,,0,NMEA$GPGSV,1,1,04,25,,,21,08,,,21,27,,,21,22,,,21*77

NMEA$GPGGA,,,,,,0,,,,,,,,*6NMEA$GPGSV,1,1,04,25,,,21,08,,,21,27,,,21,22,,,21*77

NMEA$GPGGA,,,,,,0,,,,,,,,*NMEA$GPGSV,1,1,04,25,,,21,08,,,21,27,,,21,22,,,21*77

NMEA$GPGGA,,,,,,0,,,,,,,,*6NMEA$GPGSV,1,1,04,25,,,21,08,,,21,27,,,21,22,,,21*77

NMEA$GPGGA,,,,,,0,,,,,,,,NMEA$GPGSV,1,1,04,25,,,21,08,,,21,27,,,21,22,,,21*77

NMEA$GPGGA,,,,,,0,,,,,,NMEA$GPGSV,1,1,04,25,,,21,08,,,21,27,,,21,22,,,21*77

NMEA$GPGGA,,,,,,0,,,,,NMEA$GPGSV,1,1,04,25,,,21,08,,,21,27,,,21,22,,,21*77

NMEA$GPGGA,,,,,,0,,,,,,,NMEA$GPGSV,1,1,04,25,,,21,08,,,21,27,,,21,22,,,21*77

NMEA$GPGGA,,,,,,0,,,,NMEA$GPGSV,1,1,04,25,,,21,08,,,21,27,,,21,22,,,21*77

NMEA$GPGGA,,,,,,0,,,NMEA$GPGSV,1,1,04,25,,,21,08,,,21,27,,,21,22,,,21*77

NMEA$GPGGA,,,,,,0,,,,,,,,*66NMEA$GPGSV,1,1,04,25,,,21,08,,,21,27,,,21,22,,,21*77

NMEA$GPGGA,,,,,,0NMEA$GPGSV,1,1,04,25,,,21,08,,,21,27,,,21,22,,,21*77

NMEA$GPGGA,,,,,,0,,NMEA$GPGSV,1,1,04,25,,,21,08,,,21,27,,,21,22,,,21*77

NMEA$GPGGA,,,,,,0,NMEA$GPGSV,1,1,04,25,,,21,08,,,21,27,,,21,22,,,21*77

NMEA$GPGGA,,,,,,0,,,,,,,,*NMEA$GPGSV,1,1,04,25,,,21,08,,,21,27,,,21,22,,,21*77

NMEA$GPGGA,,,,,,0,,,,,,,,*NMEA$GPGSV,1,1,04,25,,,21,08,,,21,27,,,21,22,,,21*77

NMEA$GPGGA,,,,,,0,,,,,,,,*NMEA$GPGSV,1,1,04,25,,,21,08,,,21,27,,,21,22,,,21*77

NMEA$GPGGA,,,,,,0,,,,,,,,NMEA$GPGSV,1,1,04,25,,,21,08,,,21,27,,,21,22,,,21*77

NMEA$GPGGA,,,,,,0,,,,,,,,NMEA$GPGSV,1,1,04,25,,,21,08,,,21,27,,,21,22,,,21*77

NMEA$GPGGA,,,,,,0,,,,,NMEA$GPGSV,1,1,04,25,,,21,08,,,21,27,,,21,22,,,21*77

NMEA$GPGGA,,,,,,0,,,,NMEA$GPGSV,1,1,04,25,,,21,08,,,21,27,,,21,22,,,21*77

NMEA$GPGGA,,,,,,0,,,,,,NMEA$GPGSV,1,1,04,25,,,21,08,,,21,27,,,21,22,,,21*77

NMEA$GPGGA,,,,,,0,,,,NMEA$GPGSV,1,1,04,25,,,21,08,,,21,27,,,21,22,,,21*77

NMEA$GPGGA,,,,,,0,,,NMEA$GPGSV,1,1,04,25,,,21,08,,,21,27,,,21,22,,,21*77

NMEA$GPGGA,,,,,,0,,,NMEA$GPGSV,1,1,04,25,,,21,08,,,21,27,,,21,22,,,21*77

NMEA$GPGGA,,,,,,0NMEA$GPGSV,1,1,03,08,,,21,27,,,21,22,,,21*74

NMEA$GPGGA,,,,,,0,,,,,,,,*66

NMENMEA$GPGSV,1,1,03,08,,,21,27,,,21,22,,,21*74

NMEA$GPGGA,,,,,,0,,,,,,,,*66

NNMEA$GPGSV,1,1,03,08,,,21,27,,,21,22,,,21*74

NMEA$GPGGA,,,,,,0,,,,,,,,*66

NNMEA$GPGSV,1,1,03,08,,,21,27,,,21,22,,,21*74

NMEA$GPGGA,,,,,,0,,,,,,,,*66

NMENMEA$GPGSV,1,1,03,08,,,21,27,,,21,22,,,21*74

NMEA$GPGGA,,,,,,0,,,,,,,,*66

NMENMEA$GPGSV,1,1,02,27,,,21,22,,,21*7E

NMEA$GPGGA,,,,,,0,,,,,,,,*66

NMEA$GPRNMEA$GPGSV,1,1,02,27,,,21,22,,,21*7E

NMEA$GPGGA,,,,,,0,,,,,,,,*66

NMEA$GNMEA$GPGSV,1,1,02,27,,,21,22,,,21*7E

NMEA$GPGGA,,,,,,0,,,,,,,,*66

NMEA$GPNMEA$GPGSV,1,1,02,27,,,21,22,,,21*7E

NMEA$GPGGA,,,,,,0,,,,,,,,*66

NMEA$GPRMNMEA$GPGSV,1,1,02,27,,,21,22,,,21*7E

NMEA$GPGGA,,,,,,0,,,,,,,,*66

NMEA$GPRMC,,VNMEA$GPGSV,1,1,02,27,,,21,22,,,21*7E

NMEA$GPGGA,,,,,,0,,,,,,,,*66

NMEA$GPRNMEA$GPGSV,1,1,02,27,,,21,22,,,21*7E

NMEA$GPGGA,,,,,,0,,,,,,,,*66

As you can see, it gets and looses visible satellites!