In satellite telecommunication, a downlink is the link from a satellite down to one or more ground stations or receivers, and an uplink is the link from a ground station up to a satellite. … downlink and uplink. Frequency BandDownlinkUplinkC3,700-4,200 MHz5,925-6,425 MHzKu11.7-12.2 GHz14.0-14.5 GHzKa17.7-21.2 GHz27.5-31.0 GHzWhat is downlink and uplink? – Definition from WhatIs.com www.techtarget.com › searchmobilecomputing › downlink-and-uplink