here you can find this and that - probably most related to UNIX/Linux and network
Here I want to show you how to update a ZED-X20P without u-center2. This scenario is typically used if the X20P is mounted on a piHAT sitting on a Raspberry Pi running Linux like Debian. In my case, I’m use the pHAT from sparkfun. It is mounted on a Raspberry Pi5 with Debian 13 trixie. And of course there is no easy way to run u-center2 directly. I found information to connect the Linux box and…
I use the gpsd tool set since a while. In Debian it is available as package or you can find it here: gpsd Several programs from the gpsd tool set worked as expected when I use it with a ZED-F9P. Not so with the newer ZED-X20P. The reason is simple. When starting the gpsd process it initialize the F9P and others u-blox devices with several messages, but not so with the X20P. The X20P stays in the…
Tap on the image to see details. Aufgenommen in der Friedensstraße, Wien Mauer Im Zentrum unten die Sternbauten von Atzgersdorf, rechts die Tilgnergasse “Kreuz und Quer” Nicht alle Bilder sind mit KI manipuliert. Aufgenommen in der Taglieberstraße
After some tests with Precise Point Positioning ( see below 1-5 ) and in detailed with (4) I describe this time a setup with a base station sending RTCM (Radio Technical Commission for Maritime Services) data to a rover station. For both ( base and rover ) I use Raspberry Pi’s with a GNSS pi-hat with the latest Debian OS trixie Version 13 and the latest Version of https://gitlab.com/gpsd/gpsd . I…
Comprehensive Comparison: Precise Point Positioning (PPP) Methods This report documents the evolution of GNSS measurement techniques from basic statistical averaging to professional-grade post-processing and real-time RTK solutions. All experiments were conducted using a fixed roof-mounted antenna and u-blox ZED-F9P/ZED-X20P receivers. 1. Overview of Evaluated Methods Method Title Core Technique…
This is now my fifth attempt and probably the last one to get a high precision position (using RTK) of my stationary GNSS antenna on the roof of my house. You can find the methods I used previously in my blogs here: (1) PPP - Precise Point Positioning with averaging (2) PPP with gpsrinex, CSRS-PPP and ECTT (3) PPP with RTKlib and local correction (4) PPP with NTRIP source for u-blox GNSS receiver…
This post will just describe how to setup a second interface on a Raspberry Pi4 and Pi5 with Debian 13 (trixie) for the second interface on the GNSS receiver called UART2. A detailed description how to prepare a Raspberry Pi4 and Pi5 for gpsd and ntpd can be found here: GPSD on Raspberry Pi5 with Debian Trixie GPSD on Raspberry Pi4 with Debian Bullseye I own a pHAT from uputronics with a ZED-F9P…
Some days ago I got the new ZED-X20P from manufacturer u-blox. I bought this device from DigiKey as redistributor for sparkfun. In July I updated to the latest version. MON-VER gives now the following information # ubxtool -p MON-VER swVersion EXT HPG 2.10 (b0eda3) hwVersion 000B0000 extension ROM BASE 0x00A9D329 extension FWVER=HPG 2.10 extension PROTVER=50.11 extension MOD=ZED-X20P extension…
This is now my fourth attempt to get an exact position (Precise Point Positioning) of my fixed mounted GNSS antenna at the roof of my house. You can find the methods I used previously in my blogs here: (1) PPP - Precise Point Positioning with averaging (2) PPP with gpsrinex, CSRS-PPP and ECTT (3) PPP with RTKlib and local correction As GNSS receiver I used again my u-blox ZED-F9P to manage this…
This is now my third attempt to get an exact position of my fixed mounted GNSS antenna at the roof of my house. You can find the methods I used previously in my blogs here: (1) PPP - Precise Point Positioning with averaging (2) PPP with gpsrinex and CSRS-PPP and ECIT As GNSS receiver I used again my u-blox ZED-F9P to manage this device I use the gpsd package. This time I used RTKlib to make the…