Indlela Umsakazo We-Analog Osebenza Ngayo
Umsakazo we-analog ungenye yezindlela zokuxhumana ezindala kakhulu futhi usasetshenziswa nanamuhla. Uma sivula i-tuner kumsakazo we-analog ukuze sithole isiteshi sethu esisithandayo, singase singaqapheli ubunzima obungemuva kwalobu buchwepheshe obulula. Kulesi sihloko, sizobheka ngokuningiliziwe ukuthi umsakazo we-analog usebenza kanjani, kusukela ezisekelweni zamaza omsakazo kuya endleleni umsindo ofinyelela ngayo ezindlebeni zomlaleli.
Izisekelo Zamagagasi Omsakazo
Amagagasi omsakazo awuhlobo lwamagagasi kagesi angahamba emoyeni kanye ne-vacuum. Amagagasi omsakazo anemvamisa esukela cishe ku-30 Hz kuya ku-300 GHz. Umsakazo we-analog usebenza ngezinhlobo ezimbili eziyinhloko zokuguquguquka: Ukuguquguquka kwe-Amplitude (AM) kanye nokuguquguquka kwemvamisa (FM).
Ukuguquguquka Kwe-Amplitude (AM): Ku-AM, ubukhulu be-amplitude (amandla noma usayizi wamagagasi) wesiginali yomsakazo buyahlukahluka ukuze kuboniswe izwi noma idatha edluliswayo. Kodwa-ke, imvamisa ihlala ingaguquki. I-AM ivame ukusetshenziswa ezindabeni, ezingxoxweni, nasemculweni, yize ikhwalithi yomsindo ivame ukuba ngaphansi kune-FM.
Ukuguquguquka Kwemvamisa (FM): Ku-FM, imvamisa yamagagasi iyahlukahluka ngokuya ngomsindo noma idatha edluliswayo, kuyilapho ubukhulu buhlala bunjalo. I-FM inekhwalithi yomsindo engcono kune-AM futhi ivame ukusetshenziselwa ukusakazwa komculo.
Inqubo Yokucubungula Isignali Kumsakazo We-Analog
Inqubo yokucubungula isignali kumsakazo we-analog ihilela izinyathelo eziningana eziyinhloko. Okulandelayo kuchaza lezi zinqubo.
1. Ukudluliswa Kwesignali Kusuka Esiteshini Somsakazo
Iziteshi zomsakazo zidlulisa amasignali avela ku-antenna edlulisa amasignali. Le-antenna iguqula isignali yomsindo ibe amagagasi kagesi adluliswa emoyeni. La masignali abe esefika ku-antenna yomsakazo ethola amasignali.
2. Ukwamukelwa Kwesignali yi-Antenna
I-antenna yomsakazo ibamba amaza kagesi adluliselwa yisiteshi somsakazo. Lawa ma-antenna angaba izintambo ezilula, izinduku, noma imiklamo eyinkimbinkimbi kakhulu, kuye ngezidingo zokwamukela. Amaza kagesi atholiwe aguqulwa abe amasignali kagesi abuthakathaka kakhulu yi-antenna.
3. Ukukhulisa Isignali Nge-Preamplifier
Isignali kagesi ebuthakathaka ibe isikhuliswa kusetshenziswa i-preamplifier. I-preamplifier, noma i-preamp, iyisakhi se-elekthronikhi esisetshenziselwa ukukhulisa isignali ebuthakathaka kusukela ku-antenna iye ezingeni elingacutshungulwa kabanzi ngumsakazo.
4. Ukuhlunga Nokukhetha Imvamisa
Ngemva kokukhuliswa, isignali ibe isingena kusekethe eyaziwa ngokuthi i-tuner. Le tuner ikhetha imvamisa oyifunayo phakathi kwamakhulu amaza atholwa yi-antenna. Abasebenzisi bangakhetha le mvamisa ngokuvula inkinobho yokulungisa umsakazo.
5. Ukususwa Kwesimo Ukuze Kutholwe Isignali Yokuqala
Uma umsakazo usukhethe isignali yemvamisa oyifunayo, isinyathelo esilandelayo ukususwa komsindo. Le nqubo ihilela ukususa ulwazi lomsindo noma idatha kusuka kugagasi lomthwali. Ku-AM, le nqubo ibizwa ngokuthi ukutholwa kwe-amplitude, kanti ku-FM, ibizwa ngokuthi ukutholwa kwemvamisa.
6. Ukuqinisa Kokugcina
Isignali ehlukanisiwe ibe isicutshungulwa ku-amplifier yokugcina ukuze ikhulise isignali ngaphambi kokuba ifakwe ku-loudspeaker. Le-amplifier yokugcina iqinisekisa ukuthi isignali inamandla ngokwanele ukushayela isikhulumi futhi ikhiqize umsindo ozwakalayo.
7. Ukuphuma Kwesignali Ku-Loudspeaker
Ekugcineni, isignali, ekhuliswa yi-amplifier yokugcina, ithunyelwa kwi-loudspeaker. I-loudspeaker iguqula lesi signali kagesi sibe amaza omsindo indlebe yomuntu engawezwa.
Izingxenye Eziyinhloko Zomsakazo We-Analog
Ngaphandle kokuqonda inqubo, kubalulekile futhi ukwazi ezinye zezingxenye eziyinhloko ezisebenza kumsakazo we-analog, okuhlanganisa:
– I-Antenna: Ibamba amaza omsakazo asakazwa yiziteshi zokusakaza.
– I-Preamplifier: Iqinisa izimpawu ezibuthakathaka ezivela ku-antenna.
– I-Tuner: Ikhetha imvamisa ethile kusuka kusignali eyamukelwe.
– I-Detector/Demodulator: Ihlunga isignali yenkampani yokuqala.
– I-Amplifier: Iqinisa isignali okufanele ithunyelwe kusipika.
– Isipikha Esikhulisa Umsindo: Siguqula izimpawu zikagesi zibe umsindo.
Izinzuzo kanye nokungalungi komsakazo we-Analog
Ngisho noma umsakazo we-analog usukhona isikhathi eside, usenezinzuzo nezinkinga zawo.
Izinzuzo:
– Ubulula: Imisakazo ye-analog kulula ukuyisebenzisa futhi ayidingi ubuchwepheshe obuningi.
– Izindleko Eziphansi: Ukukhiqizwa nokwamukelwa komsakazo we-analog ngokuvamile kushibhile kunobuchwepheshe bedijithali.
– Ibanga Elibanzi: Amagagasi e-AM angafinyelela ezindaweni ezibanzi kakhulu, ngisho nezinkulungwane zamakhilomitha.
Ubuthakathaka:
– Ikhwalithi Yomsindo: Ikhwalithi yomsindo emsakazweni we-AM ivame ukuba phansi ngoba isengozini yokuphazamiseka.
– Ukuphazamiseka: Kusengozini yezinhlobo ezahlukene zokuphazamiseka njengesimo sezulu esibi, imishini kagesi, kanye nezakhiwo ezinkulu.
– Ukusebenza Kahle Kwe-Spectrum: Umsakazo we-analog ngokuvamile awusebenzi kahle kakhulu ekusebenziseni kwawo i-spectrum kunerediyo yedijithali.
Izinto Ezintsha Zakamuva Kumsakazo We-Analog
Nakuba umsakazo wedijithali uqhubeka nokukhula, umsakazo we-analog uyaqhubeka nokuthuthuka ngezinto ezintsha ezahlukahlukene. Ama-antenna e-analog kanye nama-receiver manje asethuthukile futhi asebenza kahle, enikeza ikhwalithi yesiginali engcono. Ngaphezu kwalokho, eminye imisakazo yesimanje ihlanganisa ubuchwepheshe be-analog kanye nedijithali ukuze kube nokuhlangenwe nakho okungcono kokulalela.
Isiphetho
Umsakazo we-analog, naphezu kokuba ubuchwepheshe obudala, usalokhu uyindlela ephumelelayo yokusabalalisa ulwazi nokuzijabulisa. Ngenqubo ehilela ukudluliswa kwesignali kagesi, ukususwa kwesignali, kanye nokwandiswa kwesignali, umsakazo we-analog uguqula amagagasi kagesi abe umsindo. Naphezu kwezithiyo zawo, njengokuthambekela ekuphazamisekeni kanye nekhwalithi yomsindo ephansi uma kuqhathaniswa nomsakazo wedijithali, umsakazo we-analog usasetshenziswa kabanzi futhi uthandwa ngabantu abaningi emhlabeni jikelele.
Kulesi sikhathi sedijithali, ukuqonda ukuthi umsakazo we-analog usebenza kanjani kusisiza ukuba siqonde izinqubo eziyinkimbinkimbi ezingemuva kwalesi siteshi esilula. Kusukela kumaza omsakazo adluliselwa yiziteshi zomsakazo kuya ekududuzeni kokulalela izindaba noma umculo owuthandayo, ubuchwepheshe bomsakazo we-analog budlale indima ebalulekile futhi engenakuphikwa emlandweni wokuxhumana kwabantu.
