PointPerfect MQTT Continental Distribution

Overview

Introduction

Our PointPerfect correction service via MQTT (Internet) offers quick delivery of high precision accuracy by providing all continental SPARTN corrections to your device.  During provisioning, you subscribe to key and continental data topics to collect this data.  Once your device accepts these SPARTN messages (OCB, HPAC, GAD) your position is determined.

This page describes our PointPerfect correction service with all continental corrections delivered via our MQTT service.  If you wish to receive only localized corrections see our Localized Distribution page.  If you wish to use our service with an L-Band satellite delivery, please see our L-Band Configuration page.

Benefits of PointPerfect Continental Corrections Distribution

PointPerfect Continental offers many benefits to users, including:

                               -------------------------------------------------------------------------------------------

Do's & Don'ts: Best Practices and Common Pitfalls 

 

Do's: 

 

Don'ts: 

                               ------------------------------------------------------------------------------------------

PointPerfect Continental System Architecture

Continental corrections are delivered in SPARTN format to the receiver and delivered via MQTT for all PointPerfect IP plans.  You can find more details about encrypted message delivery, MQTT topic structure and payload estimations on our PointPerfect Service Description page. 

This diagram shows a typical client system architecture for an IP-only system:

Configuration

To configure your receiver follow the steps in the PointPerfect u-center guide to complete the setup.

Python sample script: PointPerfect MQTT Client 

If you are interested in evaluating PointPerfect with an MQTT Client built into your host application, please refer to the PointPerfect MQTT Client sample python script available in the Thingstream Downloads PointPerfect section to get started. The script demonstrates how to authenticate the MQTT client with the broker and subscribe to the MQTT topics. 

Reference Documentation

[1] ZED-F9P Integration manual, UBX-18010802
[2] u-center User guide, UBX-13005250
[3] u-blox F9 HPG 1.32 Interface description, UBX-22008968
[4] C099-F9P application board User guide, UBX- 18063024
[5] EVK-F9P-01 evaluation kit User guide, UBX-22038408  
[6] Thingstream Knowledge Base – Services Support