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What does NMEA tell you about your GPS?
The output you see from your GPS module is perfectly normal. What the NMEA messages tell you is that your GPS module does not (yet) have a fix, i.e. it does not have enough information to calculate its current position (+other information). You can read up on the detailed format of the messages from the NMEA protocol: link 1, link 2.
How do I connect my GPS to my Raspberry Pi?
I choose to connect the GPS to the raspberry using a USB port. I followed these steps:
Is the output from the GPS module normal?
MD. Hasibul Hasan The output you see from your GPS module is perfectly normal. What the NMEA messages tell you is that your GPS module does not (yet) have a fix, i.e. it does not have enough information to calculate its current position (+other information).
Is there a problem with my GPS module?
Only if the first two did not help, you might need to check your hardware (+antenna). By the way, the $GPTXT,01,01,01,NMEA unknown msg*58 messages you see are no problem for your modules’ ability to provide accurate position data.
How to enable NMEA datasets in u-blox GPS module?
Choose an NMEA dataset at Message. Uncheck all the boxes. Click the Send button in the lower-left corner. Switch to CFG (configuration) tab in left side list. Select Save current configuration. At Devices, select all 4 list entries. (To select all entries, tap and hold pen/mouse on first entry and move down to last entry.
Is it a problem to ignore MSG 58 messages?
By the way, the $GPTXT,01,01,01,NMEA unknown msg*58 messages you see are no problem for your modules’ ability to provide accurate position data. Either you ignore them, or you remove them by the method proposed in the link posted in the comment by @Dirk to your question. What worked for me was stty -F /dev/ttyS0 -echo.
What is the active leg information in NMEA?
It contains the active leg information: origin waypoint “POINTA” and destination waypoint “POINTB”, bearing between the two points 97.0 True, 103.2 Magnetic. It does NOT display the bearing from current location to destination waypoint!