Reference clock selection for a satellite terminal is a system-level design decision, not a single-spec comparison. Phase noise, multiplied up the frequency chain, directly compresses EVM margin for high-order modulation; mechanical vibration converts to sidebands through g-sensitivity, threatening link quality on SOTM vehicular, airborne, and maritime platforms; power consumption and warm-up time determine whether an always-on architecture is feasible. Taitien addresses the two critical paths separately: ultra-low-power OCXOs for the timing core, and low g-sensitivity OCXOs for the RF LO reference path. Applications cover fixed, SOTM vehicular, airborne Ku/Ka, and maritime satellite terminals, as well as station timing references for gateways and teleports.