| 摘要 |
FIELD: radio engineering, communication.SUBSTANCE: apparatus includes a synchroniser, a transmitter, a receiver, an interval counter, a coincidence element unit, an azimuth sensor, an indicator and a secondary processing unit, and additionally a code comparing element, a flip-flop, a second coincidence element unit, read-only memory, a mooring area coordinate sensor, a heading and distance to mooring area transmitter, a radar emission receiver, a heading and distance to mooring area receiver, a heading and distance to mooring area indicator, a response signal transmitter and a response signal receiver.EFFECT: safer mooring. |
