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Knowledge Base

Updated on Mar 19, 2026
Brake Testing Measurement and Accuracy
Calculating CAN IDs of VBOX input modules
Calculating road Gradient
Can I use an input module without connecting it to a VBOX?
CAN Outputs and Database Files
Channel Definitions
COM Port Errors
Does Racelogic software operate on a Mac?
Does the weather affect GPS?
Export VBOX Data to Spreadsheet (.csv file)
GNSS Antenna Placement and Setup
How Accurate is GPS time?
How accurate is VBOX when measuring velocity?
How Can I Get Better Positional Accuracy?
How do I know if terminating resistors are required?
How do I register my VBOX?
How do I upgrade VBOX modules?
How does a VBOX use CAN?
How Does DGPS (Differential GPS) Work?
How does filtering affect results?
How Does GPS Work?
How does interpolation work?
How Does RTK (Real Time Kinematic) Work?
How is distance measured so accurately given GPS is only accurate to a few m?
How to acquire a Racelogic module serial number over the CAN BUS
How to apply a local time offset to UTC time
How to Assemble a Dual Antenna Mounting Pole
How to change the COM port number on your PC
How to Convert .VBB Files to .VBO Format
How to Disable Driver Signature Verification on 64-Bit Windows 8.1 or 10
How to Find the TopNET Live Server Address
How to format a large Flash Card in FAT32
Benefits of IMU and Kalman filter integration for slip angle measurement
Problems logging vehicle CAN data
Proving positional accuracy improvements using a Base Station
Proving positional accuracy using light barriers (no Base Station required)
Racelogic Vehicle CAN Database
Signing Conventions
Trouble locking onto satellites
UTC Time Offset
VBOX and RL Input Module Communication
VBOX CAN Delay with IMU Integration
VBOX CANVEL
VBOX Latitude and Longitude Calculations
What Are The Causes of Noisy Data?
What are the effects of velocity noise on test measurements?
What are the power requirements and usage times for my VBOX equipment?
What causes poor position data?
What does the VBOX use as zero velocity?
What is a Racelogic 32-bit Float?
What is an IEEE 32-bit Float?
What is CAN?
What is GPS latency and does it affect accuracy?
What is GPS Rollover?
What is Network RTK (NTRIP)?
What is Position Quality?
What is the Lever-Arm or Rock Back effect?
What should I do if an upgrade fails?
Where can I find the CAN bus on a vehicle?
Why are My Brake Stop Distances Not the Same?
Why has my VBOX not detected the end of the brake stop?
Why is my input module not recognised by the VBOX?
GNSS Coldstart for VBOX 4 and VBOX 3i