over-the-horizon ground-based radar
наземна загоризонтна РЛС
наземна загоризонтна РЛС
beyond-the-horizon ground-based radar (BTH)
high frequency over-the-horizon (HF OTH) radar
forward scatter-over-the-horizon radar (OTH)
artificial horizon (gyro horizon/ attitude indicator)
gyro-horizon / artificial horizon, attitude indicator
over-the-horizon communication
over-the-horizon communications