directive radio station

radio directive device

directive radio

aeronautical radio beacon

aeronautical radio beacon station

A-N Radio Beacon

directional radio beacon

Emergency Position Indicating Radio Beacon

emergency position indicator radio beacon

emergency position-indicating radio beacon

emergency position-indicating radio beacon {= EPIRB}

equisignal radio beacon

equi-signal radio beacon

equisrgnal radio beacon

fixed radio beacon

list of radio beacon

maritime radio beacon

non-directional radio beacon

non-directional radio beacon (NDB)