Ungayithola Kanjani I-FM Radio Transmitter Engcono Kakhulu

Uma ukhetha i-FM Transmitter, ungase udideke mayelana nemingcele ethunyelwe kuyo. Lapha kuzoba nokwethulwa kobuchwepheshe ngaphakathi kwabasakazi boKhozi FM bokusiza ekukhetheni I-FM Radio Transmitter engcono kakhulu.

Esikuhlanganisayo kulokhu kwabelana:

• Yini i-FM Transmitter
• Asebenza kanjani ama-FM Transmitters
• Konke Mayelana Namandla Akhiqiziwe Emisebe
• Ukuthi uhla lwe-FM Transmitter luzoba yini
• Imisebenzi eminingi emisha bekufanele ukwazi

Imibuzo Evame Ukubuzwa Emakhasimendeni ethu

• Imaphi ama-FM Transmitters angcono kakhulu ongawathenga?
• Ibiza malini i-FM Transmitter?
• Ngabe i-50w FM Transmitter izofinyelela kude kangakanani?
• Ngingawandisa kanjani ububanzi besidluliseli sami sokusakaza?
• Ibiza malini isidlulisi se-FM?
• Ngicela ungicaphunele umsakazo ophelele womsakazo womphakathi
• Sisezinhlelweni zokuqala ukusakazwa komphakathi futhi singathanda ukwazi ukuthi singabeka malini ngesabelomali esinjalo!

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Yini i-FM Transmitter?

Uhlelo lokusakaza oluphelele luqukethe izingxenye ezintathu: i-antenna, i-transmitter, kanye nomamukeli.

Umsakazi we-FM ucezu lwesisetshenziswa esibaluleke kakhulu esinesibopho sokuthatha umsindo ku-studio sakho futhi siwusakaze ngothi kowamukelayo kuyo yonke indawo yakho yokulalela. 

Ngenxa yokuthi i-SNR inkulu, isidlulisi se-FM sisetshenziswa kabanzi emikhakheni lapho kudinga khona izwi elicacile nomsindo omncane njengokudluliswa komsakazo nokusakazwa komsakazo. 

Ngokuvamile, isidlulisi se-FM sisebenzisa amaza angama-87.5 kuya ku-108.0 MHz ukudlulisa isignali ye-FM. Ngaphezu kwalokho, amandla ama-FM transmitters okusakaza emsakazweni asukela ku-1w kuye ku-10kw+.

Njengomphakeli wemishini yokusakaza, i-FMUSER ihlinzeka ngezisakazi ze-FM nezinye izinto zokusebenza ezihlobene ngamakhono athuthukile nezintengo ezincintisanayo. Kuhlole khona manje! 

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Asebenza kanjani ama-FM Transmitters?

• Ekuqaleni, i-microphone izothatha izwi. 
• Khona-ke yayizofaka isidlulisi njengesignali yokufaka yezwi ngemva kokuguqulwa iphrosesa yomsindo. 
• Isignali yokufaka ihlanganiswe nefrikhwensi yenkampani yenethiwekhi ekhiqizwa i-voltage controlled oscillator (VCO). 
• Kodwa-ke, isignali yokufaka cishe ayinawo amandla anele ngokwanele ukuthi idluliselwe phezulu ngothi. 
• Ngakho amandla esiginali azokhuliswa aze afike ezingeni lokuphumayo nge-Exciter kanye ne-Power Amplifier. 
• Manje, isignali yanele ukuze ithi idlulise.

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Mayelana ne-ERP Effected Radiated Power

Ngaphambi kokulinganisa irediyasi yekhava yesidlulisi sakho se-FM, udinga ukufunda ngomqondo we-ERP (amandla emisebe asebenzayo), asetshenziselwa ukukala amandla efrikhwensi yomsakazo oya lapho uya khona.

Ifomula ye-ERP ithi:

I-ERP = Amandla okudlulisa ku-Watt x 10^((Inzuzo yohlelo lwe-antenna ku-dBb - ukuxebuka kwekhebula) / 10)

Ngakho-ke, Ukuze Ubale I-ERP Udinga Ukwazi Lezi Zici ezilandelayo:

• Amandla okukhiphayo we-transmitter
• Ukulahleka kwentambo ye-coaxial esetshenziselwa ukuxhuma isidlulisi ku-antenna.
• Ubude bentambo ye-coaxial.
• Uhlobo lohlelo lwe-antenna: i-dipole vertical polarization, i-polarization eyindilinga, i-antenna eyodwa, amasistimu anezimpondo ezi-2 noma ngaphezulu, njll.
• Inzuzo yesistimu ye-antenna ku-dBb. Inzuzo ingaba yinhle noma ibe yimbi.

Nasi Isibonelo Sesibalo Se-ERP:

Amandla e-FM Transmitter = 1000 Watt

Uhlobo lwe-antenna = i-4 bay dipole polarization eqondile enenzuzo engu-8 dBb

Uhlobo lwekhebula = low lixega 1/2”

Ubude bekhebula = 30 amamitha

Ukuncipha kwekhebula = 0,69dB

ERP = 1000W x 10^(8dB - 0,69dB)/10 = 3715W

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Ngabe Ububanzi Bama-FM Broadcast Transmitters buzoba yini?

Ngemva kokuthola umphumela we-ERP, kusadingeka ucabange ngezici zangaphandle njengezimo zemvelo nokuphakama kwezinti, lapho ububanzi bemisebe buncike kakhulu.

Uma udinga usizo ekukhetheni ama-transmitters omsakazo we-FM angcono kakhulu, sicela Xhumana nathi. Ngesipiliyoni samashumi eminyaka, siyakwazi ukukunikeza izixazululo zokuma okukodwa kanye nesiqondiso sochwepheshe sokukhetha nokunakekela.

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Eminye Imisebenzi Emisha Okufanele Ukwazi

Namuhla, abasakazi be-FM bokusakaza bahlomise ubuchwepheshe obuningi futhi obusha bokuthuthukisa ukusebenza kukonke, njengokuthuthukiswa kwekhwalithi yomsindo, ukulawula iwebhu, ukuhlola isibonisi, njll., ukuze kunikeze ulwazi olungcono kubasebenzisi. 

Mayelana nokuthuthukiswa kwekhwalithi yomsindo, abanye Ama-FM Broadcast Transmitters ube nokufaka kwemithombo yomsindo eminingi, njengokufakwa kwesiginali yomsindo yedijithali ye-AES / EBU, nokokufaka kwesignali yomsindo we-analog, okuthuthukisa kakhulu ikhwalithi yomsindo.

Uma kuziwa ekulawuleni iwebhu, izingxenye zama-transmitter zine-interface yokuxhumana ye-TCP / IP ne-RS232, esekela ukusebenza nokubuyekezwa ngamakhodi, ukusebenza kwawo kuyakhula.

Kochwepheshe abaningi, hlola isheke mhlawumbe umsebenzi owusizo kakhulu kubo. Ulwazi lwama-transmitter luzoboniswa esikrinini, futhi ochwepheshe bavunyelwe ukulungisa amapharamitha ngokuthepha izikrini.

Muva nje, siqaphele ukuthi, uma kuqhathaniswa nama-transmitter anemisebenzi eyisisekelo, lawo anemisebenzi eminingi azuza ukuthandwa okwengeziwe. Ngokusekelwe kuleli qiniso, sibheka ukubaluleka okukhulu ekuthuthukiseni imisebenzi ewusizo kakhudlwana kumishini yokusakaza ukuze kube lula ukucindezela kochwepheshe nokonga isikhathi sabo nezindleko zokunakekela. I-FMUSER ikunikeza imishini yokusakaza ngemisebenzi ewusizo. Uma unentshisekelo kukho, zizwe ukhululekile uku Xhumana nathi!

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