Common antenna - Kyodo Antenna (English spelling) Common antenna

Japanese: 共同アンテナ - きょうどうあんてな(英語表記)common antenna
Common antenna - Kyodo Antenna (English spelling) Common antenna

A receiving antenna system that allows multiple television receivers sharing the same antenna to freely select channels in difficult reception areas such as mountainous areas or between high-rise buildings where radio waves do not reach well. The antenna is installed in a position where it can receive good radio waves, and the received signal is adjusted and amplified to a constant level for each channel using an amplifier before being sent to the trunk cable. The trunk cable is equipped with amplifiers to compensate for losses in the line and splitters to distribute the signal to each receiver.

[Michinori Iwata]

[Reference item] | Communal reception system | Difficult-to-receive areas

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

Japanese:

電波が十分届かない山間地、高層ビル間などの難視聴地域で、同一アンテナを共用した多数のテレビ受像機が自由に選局できるようにした受信アンテナシステム。良好な電波を受信できる位置にアンテナを設置し、その受信信号をチャネルごとに増幅器で一定レベルに調整・増幅して、幹線ケーブルに送る。幹線ケーブルには線路による損失を補償する増幅器と、各受像機に分配するための分岐器が設けられている。

[岩田倫典]

[参照項目] | 共同受信方式 | 難視聴地域

出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例

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