u-blox 8 / u-blox M8 Receiver description Including protocol specification Abstract The receiver description including protocol specification describes the firmware features, specifications and configuration for u-blox 8 / u-blox M8 high performance positioning modules. The receiver description provides an overview and conceptual details of the supported features. The protocol specification describes the NMEA and RTCM protocols as well as the UBX protocol (version 15. 00 up to 19.20, version 20.00 to 20.30, version 22.00 to 22.01 and version 23.00 to 23.01) and serves as a reference manual. It includes the standard precision GNSS, Time Sync, Time & Frequency Sync, High precision GNSS, ADR and UDR products. www.u-blox.com UBX-13003221 - R25 u-blox 8 / u-blox M8 Receiver description - Manual Document Information Title u-blox 8 / u-blox M8 Receiver description Subtitle Including protocol specification v15-20.30,22-23.01 Document type Manual Document number UBX-13003221 Revision and date R25 (136dbefM) 19 August 2021 Document status Early production information Document status explanation Objective Specification Document contains target values. Revised and supplementary data will be published later. Advance Information Document contains data based on early testing. Revised and supplementary data will be published later. Early Production Information Document contains data from product verification. Revised and supplementary data may be published later. Production Information Document contains the final product specification. This document applies to the following products: Product name Type number Firmware version Product category CAM-M8C CAM-M8C-0-10 SPG 3.01 Standard Precision GNSS CAM-M8Q CAM-M8Q-0-10 SPG 3.01 Standard Precision GNSS EVA-M8M EVA-M8M-0-10 SPG 3.01 Standard Precision GNSS EVA-M8M EVA-M8M-1-10 SPG 3.01 Standard Precision GNSS EVA-M8Q EVA-M8Q-0-10 SPG 3.01 Standard Precision GNSS MAX-M8C MAX-M8C-0-10 SPG 3.01 Standard Precision GNSS MAX-M8Q MAX-M8Q-0-10 SPG 3.01 Standard Precision GNSS MAX-M8W MAX-M8W-0-10 SPG 3.01 Standard Precision GNSS NEO-M8M NEO-M8M-0-11 SPG 3.01 Standard Precision GNSS NEO-M8N NEO-M8N-0-12 SPG 3.01 Standard Precision GNSS NEO-M8Q NEO-M8Q-0-12 SPG 3.01 Standard Precision GNSS NEO-M8Q NEO-M8Q-01A-10 SPG 3.01 Standard Precision GNSS NEO-M8J NEO-M8J-0-11 SPG 3.05 Standard Precision GNSS LEA-M8S LEA-M8S-0-10 SPG 3.01 Standard Precision GNSS SAM-M8Q SAM-M8Q-0-10 SPG 3.01 Standard Precision GNSS ZOE-M8G ZOE-M8G-0-10 SPG 3.01 Standard Precision GNSS ZOE-M8Q ZOE-M8Q-0-10 SPG 3.01 Standard Precision GNSS ZOE-M8B ZOE-M8B-0-10 SPG 3.51 Standard Precision GNSS EVA-8M EVA-8M-0-10 SPG 3.01 Standard Precision GNSS MAX-8C MAX-8C-0-10 SPG 3.01 Standard Precision GNSS MAX-8Q MAX-8Q-0-10 SPG 3.01 Standard Precision GNSS UBX-13003221 - R25 Early production information Page ii u-blox 8 / u-blox M8 Receiver description - Manual NEO-8Q NEO-8Q-0-11 SPG 3.01 Standard Precision GNSS NEO-M8P NEO-M8P-0-11 HPG 1.40 High Precision GNSS NEO-M8P NEO-M8P-2-11 HPG 1.40 High Precision GNSS NEO-M8P NEO-M8P-0-12 HPG 1.43 High Precision GNSS NEO-M8P NEO-M8P-2-12 HPG 1.43 High Precision GNSS NEO-M8L NEO-M8L-0-10 ADR 4.00 / 4.21 / 4.31 / 4.50 Dead Reckoning NEO-M8L NEO-M8L-0-11 ADR 4.10 / 4.21 / 4.31 / 4.50 Dead Reckoning NEO-M8L NEO-M8L-0-12 ADR 4.11 / 4.21 / 4.31 / 4.50 Dead Reckoning NEO-M8L NEO-M8L-04B-00 ADR 4.21 / 4.31 / 4.50 Dead Reckoning NEO-M8L NEO-M8L-05B-00 ADR 4.31 / 4.50 Dead Reckoning NEO-M8L NEO-M8L-06B-00 ADR 4.50 Dead Reckoning NEO-M8L NEO-M8L-02A-11 ADR 4.10 / 4.21 / 4.31 / 4.50 Dead Reckoning NEO-M8L NEO-M8L-03A-12 ADR 4.11 / 4.21 / 4.31 / 4.50 Dead Reckoning NEO-M8L NEO-M8L-04A-00 ADR 4.21 / 4.31 / 4.50 Dead Reckoning EVA-M8E EVA-M8E-0-11 UDR 1.00 / 1.21 / 1.31 / 1.50 Dead Reckoning NEO-M8U NEO-M8U-0-10 UDR 1.00 / 1.21 / 1.31 / 1.50 Dead Reckoning NEO-M8U NEO-M8U-04B-00 UDR 1.21 / 1.31 / 1.50 Dead Reckoning NEO-M8U NEO-M8U-05B-00 UDR 1.31 / 1.50 Dead Reckoning NEO-M8U NEO-M8U-06B-00 UDR 1.50 Dead Reckoning NEO-M8T NEO-M8T-0-11 TIM 1.10 Timing LEA-M8T LEA-M8T-0-10 TIM 1.10 Timing LEA-M8T LEA-M8T-1-00 TIM 1.11 Timing LEA-M8F LEA-M8F-0-00 FTS 1.01 Timing u-blox reserves all rights to this document and the information contained herein. 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UBX-13003221 - R25 Early production information Page iii u-blox 8 / u-blox M8 Receiver description - Manual Table of Contents Preface........................................................................................................................................................................ 1 1 Document Overview....................................................................................................................................... 1 2 Firmware and Protocol Versions ............................................................................................................... 1 2.1 How to Determine the Version and the Location of the Firmware........................................... 1 2.1.1 Decoding the Boot Screen (for Protocol Version 17 and Below) ......................................... 1 2.1.2 Decoding the Boot Screen (for Protocol Version from 18 to 23.01).................................. 3 2.1.3 Decoding the output of UBX-MON-VER (for Protocol Version 17 and below) ................ 4 2.1.4 Decoding the output of UBX-MON-VER (for Protocol Version from 18 and 23.01) ....... 6 2.2 How to Determine the Supported Protocol Version of the u-blox Receiver .......................... 7 2.2.1 u-blox 8 / u-blox M8 Firmware and Supported Protocol Versions .................................... 7 Receiver Description.............................................................................................................................................. 9 3 Receiver Configuration................................................................................................................................ 9 3.1 Configuration Concept ..................................................................................................................... 9 3.2 Organization of the Configuration Sections.............................................................................. 10 3.3 Permanent Configuration Storage Media................................................................................... 11 3.4 u-blox Receiver Default Configuration......................................................................................... 11 3.5 Save-on-Shutdown Feature........................................................................................................... 11 4 Concurrent GNSS ........................................................................................................................................ 12 4.1 GNSS Types....................................................................................................................................... 12 4.1.1 Major GNSS ................................................................................................................................ 12 4.1.2 Augmentation Systems .......................................................................................................... 13 4.2 Configuration.................................................................................................................................... 14 4.2.1 Switching between GNSS ....................................................................................................... 14 4.2.2 Configuring QZSS L1SAIF ...................................................................................................... 15 5 SBAS Configuration Settings Description.......................................................................................... 15 5.1 SBAS (Satellite Based Augmentation Systems)....................................................................... 15 5.2 SBAS Features ................................................................................................................................. 17 5.3 SBAS Configuration........................................................................................................................ 18 6 QZSS L1S SLAS Configuration Settings Description...................................................................... 19 6.1 QZSS L1S SLAS (Sub-meter Level Augmentation Service).................................................... 19 6.2 QZSS L1S SLAS Features.............................................................................................................. 19 6.3 QZSS L1S SLAS Configuration.................................................................................................... 20 7 IMES Description .......................................................................................................................................