ArduSimple NEO-D9C Japan CLAS Corrections L6 Receiver is a pre-configured module featuring soldered headers and compatibility with XBee sockets. ArduSimple NEO-D9C has a pigtail uFL to SMA-Male (20cm). This connection enables the sharing of a single antenna with two receivers. Operating via the L6 band (L-band), it leverages satellites to deliver two essential services. First, the Centimeter Level Augmentation Service (CLAS) exclusively offers precise centimeter-level correction data in Japan. Second, the Multi-GNSS Advanced Demonstration tool for Orbit and Clock Analysis (MADOCA) extends its reach to provide decimeter-level correction in Japan and neighboring countries like South Korea.