Your GNSS fix drifts because six errors enter along the signal's 20,000 km path. This guide maps where each error comes from and how large it can be.
Kalmix Engineering Notes
Practical GNSS and RTK resources for real machines.
Technical articles, selection guides, hardware deep dives, and application notes for engineers building RTK-based robotics, AGV, agriculture, and field-automation systems.
GNSS Handbook
Fundamentals of GNSS, RTK, signals, corrections, and coordinate systems.
Market Insights
Selection guides for RTK receivers, modules, robotics, and field automation.
Deep Dives
Engineering decisions behind Kalmix GNSS hardware and platform choices.
Application Notes
Protocol references, frame structures, and developer integration notes.
GNSS Handbook
8
articles
GNSS works by measuring satellite signal travel time, converting it into pseudoranges, and solving position plus receiver clock bias with at least four satellites.
Understand why a GNSS receiver does not use every satellite in the sky. This guide explains GPS, GLONASS, Galileo, BeiDou, L1/L2/L5 bands, antenna matching, and signal-leve...
Market Insights
5
articles
A practical handheld RTK workflow for field trials — plot revisits, sampling points, and drone GCPs, built around a phone or tablet.
This article explains where standard GNSS modules stop scaling and when a machine-oriented RTK receiver becomes the next step.
Comparing ArduSimple simpleRTK boards with integrated RTK receivers? The key difference is engineering ownership: board-level freedom versus repeatable field installation.
Deep Dives
3
articles
Why host-based RTK moved the software engine off-chip, how that architecture lowered cost, and why the responsibility boundary still matters today.
AG3335 is not one fixed GNSS chip configuration. This guide explains how AG3335M, MN, MA, MNA, A, AT, AD, and AE differ by product role, RAW observation rate, RTK+DR packag...
Kalmix chose Airoha’s AG3335 as the GNSS foundation for real machines because robotics and automation need more than a coordinate-output chip: L1/L5 observables, RTK behavi...
Application Notes
2
articles
Developer reference for RTCM 3.x parser implementation, covering frame structure, CRC-24Q validation, bit-level payload extraction, SC-104 message types, MSM masks, and sig...
AN-001 is a field-level NMEA 0183 reference for GNSS receiver integration, covering sentence structure, talker IDs, version differences, GGA/RMC/GSA/GSV field tables, Syste...