UM980 All-constellation Multi-frequency High Precision RTK GNSS receiver. UM980 is Unicore’s new-generation proprietary high-precision RTK positioning module based on the Nebulas IV SoC which integrates RF, baseband and high-precision algorithm. The built-in multi-frequency anti-jamming technology enhances RTK calculation on multiple modes and frequencies, which significantly improves RTK initialization time, measurement accuracy and reliability in complex environments such as city blocks and tree shades. Relying on the excellent performance, UM980 is well suited for high-precision navigation and positioning applications such as precision agriculture, surveying and mapping and so on. Fanless setup, passive cooling Build-in RF splitter for direct connection in multi-receiver setup Raspberry-PI RPI Zero 2 W RP3A0 SoC, ARM Cortex-A53@1GHz WiFi 2.4 GHz 802.11n ELT_RtkBase full-featured software ELT_RTKBase User Guide microSD card 32GB with pre-installed software and documentation GNSS antenna input with SMA connector USB C receiver port with access to 4 Mosiac serial ports, USB C power in port Power LED, GNSS LED, Internet LED and NTRIP LED Dimensions 100x100x22.5 mm Weight: 140 gr. Fully assembled and ready to use