For UBLOX GNSS LeA-M8T development board raw data Carrier phase almanac includes technical support - AliExpress
GitHub - PaulZC/NEO-M8T_GNSS_FeatherWing: A clone of the Adafruit GPS FeatherWing incorporating the u-blox NEO-M8T (external antenna). Designed to work with the Adafruit Feather M0 Adalogger for RAWX GNSS post-process precise positioning.
EVK-M8T User Guide Datasheet by U-Blox | Digi-Key Electronics
Selecting a GPS receiver (M8N vs M8T) | rtklibexplorer
LOW-COST GNSS RECEIVER SYSTEM FOR HIGH-PRECISION GNSS DATA PROCESSING