11 December 2025 – Keysight Technologies, Inc. today announced that in collaboration with KT SAT, it has demonstrated a successful non-terrestrial network (NTN) handover using the KOREASAT-6A satellite at KT SAT’s Kumsan Satellite Network Operation Center in Korea. In a controlled lab environment, the companies established the industry’s first1 NR-NTN multi-orbit handover between a commercial GEO satellite and an emulated LEO link. The demonstration was performed over a live Ku‑band GEO connection (DL ~12.3 GHz / UL ~14.4 GHz), marking a major milestone toward testing the newly standardized 3GPP Rel‑19 Ku‑band NTN spectrum. By incorporating Ku‑band operation into this multi-orbit mobility scenario, Keysight and KT SAT have validated NTN behaviors in a frequency range now central to emerging global standards and operator deployment strategies. Read more