[′kyü band ‚fikst ′sad·əl‚īt sər·vis] (communications) Satellite communication at and near the Ku band, with the uplink frequency in bands from 12.75 to 13.25 gigahertz and 14.0 to 14.5 gigahertz and the downlink frequency in a band from 10.7 to 11.7 gigahertz.