forward scatter-over-the-horizon radar (OTH)

high frequency over-the-horizon (HF OTH) radar

over the horizon (OTH)

forward-scatter radar

over-the-horizon ground-based radar

over-the-horizon radar

over-the-horizon radar (OTHR)

artificial horizon (gyro horizon/ attitude indicator)

artificial horizon / attitude indicator, gyro-horizon

attitude indicator / artificial horizon, gyro-horizon

gyro-horizon / artificial horizon, attitude indicator

over-the-horizon forces

over-the-horizon range

over-the-horizon communication

over-the-horizon communications

over-the-horizon optical communication

over-the-horizon radio

radar cross-section / radar cross section (RCS); radar signature; radar crossover

fire over open sights (fire over sights)

radar horizon

beyond-the-horizon ground-based radar (BTH)

beyond the horizon radar (BTHR)

scatter a crowd

round-to-round scatter

turbulence scatter

troposcatter / tropospheric-scatter communication

long-distance ionospheric-scatter communication

orbital-scatter radio communication

scatter bomb

scatter communication

scatter-gun

scatter

forward observer (FO), forward observation officer; (artillery) observer / spotter