Rtk gnss

Introduction

ESTPOS - national GNSS satellite data center

• https://geoportaal.maaamet.ee/eng/Spatial-Data/ESTPOS-national-GNSS-satellite-data-center-p839.html

ArduSimple + Antenna

• L1 1575.42MHz, L2 1227.70MHz, L3
• Coding of signals. Modulation 1.203Mb/s, carrier L1.
• Signal transmission: directly, via internet (wifi) or mobile networks (eg rtk2go http://rtk2go.com/ map: http://monitor.use-snip.com/map) or via satellite (eg u-blox)
• https://simeononsecurity.com/guides/budget-diy-gps-gnss-base-station-setup-esp32-um980/ https://www.onocoy.com/
• How to build a base station: (1) an RTK antenna for all GNSS bands, (2) an RTK gnss receiver for all bands, (3) an ESP32 + software
• https://github.com/mazgch/hpg