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Usesho oludumile
Ungayithola Kanjani Imvamisa Engasetshenzisiwe Yama-FM Radio Transmitters?
Iziteshi zomsakazo we-FM zingenye yezindlela ezilula nezithengekayo zokulalela umculo wedivayisi yakho yeselula. Kodwa ku-rookie, kungase kube nzima ukuthola imvamisa engenaziphazamiso. Uma unenkinga yokuthola imvamisa ye-FM engasetshenziswa, lokhu kwabelana kuzoba wusizo kuwe.
Imvamisa ye-FM Engakhethwa Emhlabeni Wonke
Amafrikhwensi eziteshi zomsakazo we-FM
Njengoba amabhendi omsakazo we-FM asetshenziswa emhlabeni wonke engaphakathi kwebanga le-VHF, okungukuthi 30 ~ 300MHz, ibhendi yokusakaza ye-FM ibizwa nangokuthi i-VHF FM frequency band. Njengamanje, amazwe emhlabeni jikelele asebenzisa la maqembu amathathu alandelayo omsakazo we-VHF FM:
- 87.5 - 108.0MHz - Leli yibhendi yokusakaza ye-VHF FM esetshenziswa kakhulu emhlabeni, ngakho yaziwa nangokuthi ibhendi yokusakaza ye-FM "ejwayelekile".
- 76.0 - 95.0MHz - I-Japan isebenzisa leli bhendi yokusakaza ye-FM.
- 65.8 - 74.0MHz - Leli qembu le-VHF FM libizwa ngebhendi ye-OIRT. Le bhendi yokusakaza ye-FM isetshenziswa kakhulu amazwe athile aseMpumalanga Yurophu. Kodwa manje la mazwe aseshintshile asebenzisa ibhendi yokusakaza ye-FM "ejwayelekile" engu-87.5 - 108 MHz. Amazwe ambalwa kuphela asele asasebenzisa ibhendi ye-ORIRT.
Ngakho-ke, ngaphambi kokuthola ifrikhwensi ye-FM etholakalayo, kufanele uqinisekise ifrikhwensi ye-FM evunyelwe ezweni lakini.
Imithetho yokumisa amaza eziteshi zomsakazo we-FM iyahlukahluka kuye ngamazwe. Kwamanye amazwe, iziteshi zomsakazo ze-FM zisebenzisa ibhendi yefrikhwensi ende, okungenzeka ukuthi kungenxa yemikhawulo yobuchwepheshe, kodwa maningi amathuba okuthi igweme ukuphazamiseka kwesignali okubangelwa iziteshi zomsakazo ezimbili ezinamaza afanayo. Isibonelo, e-United States, ukusakazwa kwe-FM kwezentengiso kunikezwa umkhawulokudonsa ongu-0.2 MHz, futhi amazwe athile azonikeza umkhawulokudonsa wokusakaza we-FM wezentengiso ku-0.1 MHz.
Ngokuvamile, ukuze kuncishiswe ukuphazamiseka kwesignali phakathi kwamabhendi efrikhwensi, iziteshi zomsakazo ezimbili ezinezindawo ezifanayo zizosebenzisa amaza okungenani angu-0.5 MHz ngokuhlukana kwesinye.
Imvamisa ongayisebenzisa incike endaweni okuyo yangempela. Kunezindlela ezimbili zokuthola imvamisa engasetshenziswa. Indlela yokuqala ukuzama yonke imvamisa ye-FM evulekile. Indlela yesibili iwukusesha ku-inthanethi noma uthintane nomnyango wendawo wezokuxhumana.
- Zama yonke imvamisa ye-FM evulekile
Le ndlela idinga ukuthi ulungise imvamisa yomsakazo nomsakazo we-FM. Ngemva kokuqinisekisa ukuthi imaphi amaza avuliwe endaweni yangakini, ungazama ifrikhwensi ngayinye evuliwe ye-FM.
Le ndlela iza nezinye izinzuzo:
- Njengoba uzozama yonke ifrikhwensi ye-FM evulekile, mhlawumbe ungathola amaza ahlukahlukene e-FM angasetshenzisiwe.
- Ungakwazi ukwazi ifrikhwensi enembile lapho umsakazo ungakhipha khona umsindo ongcono kakhulu.
Uma use-United States, ungaqala ku-88.1MHz, bese kuba ngu-88.3MHz, 88.5MHz, njalonjalo. Uma uthola ukuthi umsakazo ungakhipha umsindo ocacile ngokuzinzile kumafrikhwensi athile, afana no-89.1MHz, siyakuhalalisela! Uthole ifrikhwensi engasetshenzisiwe, engu-89.1MHz. Qhubeka uzama, futhi mhlawumbe ungathola imvamisa eningi engasetshenzisiwe.
Kodwa, futhiiza nalo ukungalungi okusobala:
- Uma uhlala edolobheni, kunzima ukuthola ifrikhwensi ye-FM engasetshenziswa. Ngoba iningi lamafrikhwensi e-FM emadolobheni amakhulu kungenzeka ukuthi bekugcwele.
- Ngoba amandla ezisakazi zomsakazo we-FM ngokuvamile aphansi, ngisho noma uthola ifrikhwensi ye-FM ingasetshenziswa, kulula ukuphazanyiswa amanye amasiginali we-FM.
- Le ndlela ayifanele uma indawo yakho ihamba. Isibonelo, uma usemotweni ehambayo, ifrikhwensi ye-FM esebenzisekayo izoshintsha ngokuma kwakho.
Ngakho-ke, zama ifrikhwensi ye-FM ngayinye ngayinye kungacaca ukuthi amafrikhwensi ayatholakala yini endaweni yakho.
- Thola i-Google noma thintana neRadio&TV Adminstration
Uma use-United States, ungathola imvamisa ye-FM ongayisebenzisa endaweni yangakini kwamanye amawebhusayithi. Isibonelo, i-Radio Locator ingakusiza ukuthi uthole amaza avulekile natholakalayo ngokususelwe kudolobha, isifunda, kanye nekhodi ye-zip oyifakile.indawo esemthethweni
Ngesikhathi esifanayo, ungaphinda uthintane nomnyango wezokuxhumana wendawo mayelana nemvamisa etholakalayo yendawo okuyo njengamanje. Uma kuvunyelwe, bazokunikeza imvamisa engasetshenzisiwe.
Qaphela: Ngokuvamile, imvamisa esetshenziswa ngu Abasakazi be-FM ingu-88.0 - 108.0MHz. Uma udinga ukusebenzisa amanye amafrikhwensi, sicela usithinte. Singakwazi ukwenza ngokwezifiso imvamisa yomsakazo wakho we-FM.
Sithemba ukuthi lokhu kwabelana kuwusizo kuwe ukuze uthole imvamisa ye-FM engasetshenziswa. Uma uthanda lesi sihloko, sicela wabelane ngaso nabangani bakho.
U-FMUSER uchwepheshe umenzi wemishini yesiteshi somsakazo, njalo ukuthola ukwethenjwa amakhasimende nge imishini yokusakaza umsakazo ngekhwalithi ephezulu namanani ancintisanayo. Uma usuzothengaImishini yomsakazo we-FM ukusetshenziswa komuntu siqu noma iziteshi zomsakazo eziqeqeshiwe, sicela ukhululeke Xhumana nathi. Sonke siyizindlebe.
Isho ukuthini i-centre frequency?
Kusho imvamisa phakathi kwebhendi yefrikhwensi. Isibonelo, ebhendini yefrikhwensi ye-FM isuka ku-89.6 iye ku-89.8 MHz, imvamisa emaphakathi ngu-89.7 MHz.
Yikuphi okungcono, AM noma FM?
Izimpawu ze-FM zinenzuzo enkulu ngaphezu kwezimpawu ze-AM. Uma usebenzisa i-FM frequency, imvamisa yesiginali yenkampani yenethiwekhi iyahlukahluka. Yize womabili amasiginali e-AM namasiginali we-FM kulula ukushintsha kancane ku-amplitude, lezi zinguquko ziphumela ekumeni kumasiginali e-AM.
Kungani usebenzise i-FM ekusakazeni umsakazo?
I-wide-band FM isetshenziswa emhlabeni wonke ukunikeza umsindo othembekile ophezulu emsakazweni osakazwayo. Ukusakazwa kwe-FM kunokwethembeka okuphezulu kunobunye ubuchwepheshe bokusakaza, okungukuthi, ukukhiqiza kabusha okunembe kakhudlwana komsindo wokuqala, njengokusakaza kwe-AM.
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XHUMANA NATHI
I-FMUSER INTERNATIONAL GROUP LIMITED.
Sihlala sinikeza amakhasimende ethu imikhiqizo ethembekile nezinsizakalo ezicabangelayo.
Uma ungathanda ukuxhumana nathi ngqo, sicela uye ku Xhumana nathi