GNSS positioning

Ask questions and find answers on Teseo GNSS positioning solutions. Discuss NMEA sentences, SBAS activation, and signal troubleshooting.

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Teseo-LIV4 GNSS Firmware Update CRC Error

I'm attempting to update the firmware for the LIV4 GNSS module, and everything seems to goes well until the CRC step, where it hangs for a few seconds then reports a failure. The module is no longer publishing any data, but when using the 'recovery' ...

JCharette by Associate III
  • 4081 Views
  • 16 replies
  • 1 kudos

Resolved! Failure to get lock with TESEO-LIV3F

I have been attempting to get a GPS lock with the TESEO-LIV3F, and I am not able to.  I am fairly certain that it has to do with how I designed the signal chain from the chip antenna to the RF-IN pin on the LIV3.  I have ensured that it was outside w...

GPS PCB.png GPS schematic.png

Hardware reference design for STA8090WG

Hello, I am designing a PCB atm with the STA8090WG and I am searching for a reference design/layout recommendation for this IC, including the caps to use and recommendations on the antenna matching. Does something like this exist? It would be really ...

Val981 by Associate
  • 233 Views
  • 0 replies
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DC on RFin on LIV4F GPS Module

Is there a way to turn the DC off on the RF_IN port on the LIV4 GPS module?  There must be an enable or disable feature available via firmware.  Thanks for reading.Scott

shooten by Associate
  • 355 Views
  • 3 replies
  • 0 kudos

Teseo-ELE6A NavIC standalone mode

Hello, i am evaluating Teseo-ELE6A module and i would like to know if NavIC can be configured as a "standalone" constelation, without being combined with GPS,Galileo,etc....In the documentation it is mentioned:NavIC (IRNSS) The module is designed to ...

tpas by Associate
  • 201 Views
  • 1 replies
  • 1 kudos

Resolved! LIV4F less sensitivity compared to MAX-M10S?

Hi all,to evaluate LIV4F and MAX-M10S, I use Mikroe "GNSS 9" and "MAX" click boards with a passive antenna (Quectel YEGT001W1AM).While the MAX click board with the MAX-M10S gets a fix in less than one minute, the MAX 9 board with the LIV4F doesn't ge...

bofh by Associate III
  • 943 Views
  • 15 replies
  • 5 kudos

Resolved! Question Regarding Stop Detection Algorithm (CDB-ID 200)

Hi,Could you please provide more details about the Stop Detection Algorithm referenced in CDB-ID 200? The documentation we have contains very limited information about this feature.Specifically, we would like to understand:- What is the purpose of th...

Yegor by Associate II
  • 266 Views
  • 1 replies
  • 0 kudos

Resolved! TCXO frequency & CPU clock tuning for best PPS precision

Hello — please help with the following questions about parameters:How should I correctly configure the TCXO frequency parameter $PSTMGETPAR,1245 (TCXO Frequency)?How should I correctly configure the CPU clock speed parameter $PSTMGETPAR,1130 (CPU clo...

Yegor by Associate II
  • 544 Views
  • 5 replies
  • 0 kudos