VBOX Touch GPS Coldstart - RACELOGIC Support Centre
SparkFun GPS Dead Reckoning Breakout - NEO-M8U (Qwiic) - Supports NMEA, UBX, and RTCM protocols Over UART or I2C interfaces Time-to-First fix Cold Start (~26s) Hot Start (~1.5s): Amazon.com: Industrial & Scientific
RTK cold/hot start + reacquisition times - RTK / Post-processing configuration - Emlid Community Forum
GPS Philip Bunge, Andrew Malicowski, Kevin Wei. GPS Global Positioning System Developed in 1973 Space/satellite based Provides: o Location information. - ppt download