ADF stands for automatic direction finder. A device used on ships and aircraft to automatically detect the direction of radio waves sent from ground-based radio beacon stations. A loop-operated antenna is combined with a medium wave receiver, and the figure-of-eight characteristic is superimposed with the characteristic of an omnidirectional antenna to display the direction of radio waves on an indicator (called a radio compass). → Related items Direction finder | Omnidirectional radio beacon Source : Heibonsha Encyclopedia About MyPedia Information |
automatic direction finderの訳,略してADF。船舶や航空機で,地上の無線標識局から発信される電波を受信して,その到来方向を自動的に探知する装置。中波受信機にループ作動アンテナを組み合わせ,その8字特性と全方向性アンテナの特性を重畳させて,電波の到来方向を指示計器(ラジオコンパスという)上に表示する。 →関連項目方向探知機|無指向性無線標識 出典 株式会社平凡社百科事典マイペディアについて 情報 |
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