Kalaman rediyo
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Bayanai | |
Ƙaramin ɓangare na |
electromagnetic wave (en) ![]() ![]() |
Bangare na |
electromagnetic spectrum (en) ![]() |
Mabiyi |
infrared radiation (en) ![]() |
![](http://upload.wikimedia.org/wikipedia/commons/thumb/a/a6/Dipole_xmting_antenna_animation_4_408x318x150ms.gif/220px-Dipole_xmting_antenna_animation_4_408x318x150ms.gif)
![](http://upload.wikimedia.org/wikipedia/commons/thumb/5/5e/AMPAC_National_Radio_Talk_Show_01.jpg/220px-AMPAC_National_Radio_Talk_Show_01.jpg)
Rawanin radiyo wani nau'i ne na radiation na lantarki mai tsayi mafi tsayi a cikin bakan na'urar lantarki, yawanci tare da mitoci na 300 gigahertz ( GHz ) da ƙasa. Na 300 GHz,madaidaicin madaidaicin zangon shine 1mm,wanda ya fi guntu diamita na hatsin shinkafa. Na 30 Hz daidai gwargwado shine ~ 10,000 kilometres (6,200 mi),wanda ya fi radius na Duniya tsayi.Tsawon igiyoyin rediyon ya bambanta da mitarsa,saboda saurinsa a koyaushe yake.Kamar duk igiyoyin lantarki na lantarki,raƙuman radiyo a cikin vacuum suna tafiya a cikin saurin haske, kuma a cikin yanayin duniya a ɗan ɗan hankali kaɗan.Ana haifar da raƙuman radiyo ta hanyar ɓangarorin da aka caje da ke fuskantar hanzari,kamar igiyoyin lantarki masu canza lokaci.Radiyon da ke faruwa a dabi'a suna fitowa ta hanyar walƙiya da abubuwa na sararin samaniya, kuma wani ɓangare ne na hasken baƙar fata da duk wani abu mai dumi ke fitarwa.
Ana samar da igiyoyin rediyo ta hanyar wucin gadi ta na'urar lantarki da ake kira transmitter,wacce ke haɗa da eriya wacce ke haskaka raƙuman ruwa.Ana karɓar su ta wani eriyar da aka haɗa zuwa mai karɓar rediyo,wanda ke sarrafa siginar da aka karɓa.Ana amfani da igiyoyin rediyo sosai a cikin fasahar zamani don daidaitawa da sadarwar rediyo ta hannu, watsa shirye-shiryeradar da tsarin kewayawa na rediyo,tauraron dan adam sadarwa, hanyoyin sadarwar kwamfuta mara waya da sauran aikace-aikace da yawa. Mitoci daban-daban na igiyoyin rediyo suna da halaye daban-daban na yaduwa a cikin yanayin duniya;Dogayen raƙuman ruwa na iya karkatar da tartsatsi kamar tsaunuka kuma suna bin kwatancen duniya(taguwar ruwa na ƙasa ), gajeriyar raƙuman ruwa na iya yin la'akari da ionosphere kuma su dawo cikin ƙasa fiye da sararin sama(skywaves), yayin da mafi guntuwar raƙuman ruwa suna lanƙwasa ko karkatarwa kaɗan kaɗan kuma suna tafiya. layin gani, don haka nisan yaɗuwar su yana iyakance ga sararin gani na gani.
![](http://upload.wikimedia.org/wikipedia/commons/thumb/9/93/Radio_waves.svg/300px-Radio_waves.svg.png)