Radar reflector

A fixed radio transmitter, (now rarely used) usually identifying itself by a

Morse code signal, on which a bearing can be taken with a Radio

direction-finder. Marine radio beacons are sited specifIcally to assist sea

vessels, but a small-boat skip­per can also make use of aero beacons if they

are sited near the coast. (But some aero beacons transmit on VHF, whereas

marine beacons are usually in the low frequency band.)