Ama-FM Combiners

Isihlanganisi se-FM iyithuluzi le-elekthronikhi elisetshenziselwa ukuhlanganisa ama-FM amabili noma ngaphezulu ohlelweni olulodwa lwe-antenna. Inika amandla ama-transmitters amaningi ukuthi abelane ngothi olulodwa, okubuye luvumele ukusetshenziswa kabusha kwefrikhwensi kanye nokusetshenziswa ngempumelelo kwe-spectrum yomsakazo. Izihlanganisi ze-FM nazo zivame ukubizwa ngokuthi amasistimu wokuhlanganisa i-FM, amasistimu ahlanganisayo, noma amanethiwekhi ahlanganisayo.

Yiziphi izinhlelo zokusebenza zesihlanganisi se-FM futhi yiziphi izinhlelo zokusebenza ezivame kakhulu?
Izihlanganisi ze-FM zisetshenziswa ezinhlelweni zokusakaza zomsakazo ukuhlanganisa amasignali amaningi omsakazo wefrikhwensi efanayo emugqeni owodwa wokusakaza ukuze asakazwe kanyekanye. Enye yezinhlelo zokusebenza ezivame kakhulu zabahlanganisi be-FM ukuhlanganisa amasiginali amaningi eziteshi zomsakazo we-FM ukuze asakazwe ngothi olufanayo. Ukwengeza, izihlanganisi ze-FM zisetshenziselwa ukuhlanganisa amasignali abasakazi beziteshi zomsakazo eziningi ze-FM ezitholakala ezindaweni ezihlukene ukuze bakhe isignali eyodwa, ehlanganisiwe engasakazwa endaweni ebanzi.

Ungazikhetha kanjani izihlanganisi zomsakazo we-FM ezihamba phambili? Iziphakamiso ezimbalwa...
Amakhasimende amaningi eza kithi futhi abuze, "Hhayi, yiziphi izinhlobo zezihlanganisi ze-FM ezithengiswayo ezidume kakhulu? Ingakanani intengo yesihlanganisi se-FMUSER UHF/VHF?", okuqukethwe okulandelayo kumayelana nendlela yokukhetha isistimu yokuhlanganisa engcono kakhulu yakho. isiteshi sokusakaza.

Ukukhetha isihlanganisi se-FM esingcono kakhulu sesiteshi sokusakaza, kufanele ucabangele izici ezifana nenani lama-transmitters, amandla atholakalayo, usayizi we-antenna, nohlobo lwama-antenna asetshenzisiwe. Ukwengeza, kufanele futhi ubuyekeze ukucaciswa kwesihlanganisi, njengokuvama kwaso okuphezulu, ukuhlukaniswa, ukulahleka kokufakwa, nezinye izici. Kubalulekile ukucwaninga ukubuyekezwa kwesihlanganisi, kanye nomlando womkhiqizi kanye nesevisi yamakhasimende. Okokugcina, kufanele uqhathanise izintengo phakathi kwabahlinzeki abahlukene bese ukhetha umkhiqizo ofanelana kangcono nezidingo zakho kanye nesabelomali.

Kufanele futhi unake lezi zinto ezilandelayo:

#1 Ithusi, ithusi eligqize ngesiliva, kanye nengxubevange yekhwalithi ephezulu ye-aluminium kungcono: Mfwethu, uma kumayelana nomsebenzi wesikhathi eside womsakazo wakho, noma ngabe umsakazo we-FM noma umabonakude wezwe lonke, awufuni ukuthi ume mhlazane uqala ukusebenza ngenxa yezizathu eziningi ezingajwayelekile. Cabanga ngakho, ngisho, akekho ofuna umshini osindayo obiza izinkulungwane zamaRandi nesikhathi esiningi nomzamo kodwa ongakwazi ukusebenza ngokuqhubekayo? Ngakho-ke, lapho ungakhetha ukuba nesihlanganisi esisebenza kahle kakhulu esenziwe ngezinto ezingcono, njengethusi, ithusi elicwecwe ngesiliva, nengxube ye-aluminium yekhwalithi ephezulu, kufanele wenze isinqumo sakho kusenesikhathi, futhi i-FMUSER ingakunikeza lolu hlobo. wemishini yokusakaza esezingeni eliphezulu. Sinakho konke okufunayo.

#2 Udinga Inhlanganisela Eyengeziwe Yochwepheshe: Ithimba lethu lezobuchwepheshe lithole impendulo eningi njengokuthi, "Nkulunkulu, njengoba umqashi wethu ethenge isihlanganisi sezindlela ezi-2 ngezinkulungwane zamadola kwabanye abakhiqizi bemishini yomsakazo abangaziwa, inani labalandeli bohlelo lwethu lomsakazo lehlile kakhulu." noma "Angisakwazi ukubekezelela lowo mhlanganisi ompofu!" Sizobe sesiphakamisa ngobuqotho kubo, "Kungani ungakhethi isihlanganisi se-RF esisebenza ngamashaneli amaningi?" Eziteshini zomsakazo eziningi zamakhasimende ethu, kukhona ama-FM amaningana noma ama-solid state TV transmitters. Ngalesi sikhathi, lezo zihlanganisi ezisezingeni eliphansi azikwazi ukuhlangabezana nezidingo zesimanje zokudluliswa kochwepheshe kweziteshi eziningi. Udinga amathuluzi angcono. I-FMUSER yenzeka ihlanganise cishe bonke abahlanganisi beziteshi eziningi abangochwepheshe ongabathola emakethe. Ake sixoxe, ngokuqinisekile uzothola engcono kakhulu

#3 Jabulela Okujatshulelwa Izithameli Zakho: Kungani ungavumeli abalaleli bajabulele uhlelo lomsakazo olungcono ngenkathi usakwazi. Ingabe abalaleli bakho bazimisele ngempela ukulalela lezo zinhlelo zomsakazo ezigcwele umsindo onzima? Indlela yokuba nekhwalithi ephezulu yohlelo lomsakazo isiphenduke enye yezinjongo zamakhasimende ethu amaningi aphindayo. Kunjalo, kungakhathaliseki ukuthi umsakazo wedolobha elincane noma umsakazo kazwelonke, awufuni ukulahlekelwa izethameli zakho ezibalulekile. Ngenhlanhla, ungaqala ngokubuyekeza imishini yakho yokusakaza yobungcweti, lapho ungaba nemishini yesiteshi somsakazo enemisebenzi eminingi ngokuhlanekezela okuphansi kakhulu, ukulahlekelwa kokufaka, kanye ne-VSWR ephansi, isihlanganisi se-RF esivela ku-FMUSER, isibonelo, sicela ungangabazi. Sihlonipheke kakhulu ngokusebenzela wena nabalaleli bakho

#4 Usayizi ubaluleke ngendlela efanayo: Ngokuvamile, indawo ephelele yegumbi lesiteshi somsakazo ngeke ibe nkulu njengestudiyo sokusakaza, futhi kunemishini eminingi yokusakaza edingekayo, njengama-transmitters okusakaza ohlobo lwekhabhinethi, ama-feeders, ama-waveguide inflators, njll., okusho ukuthi. ukuthi ithimba lakho lezobuchwepheshe kufanele lihlelele isihlanganisi indawo ngokufanelekile ngaphandle kokuphazamisa umsebenzi waleyo mishini ebizayo, Isihlanganisi esivamile singase sibe sikhulu kakhulu ukuba singangena egunjini lokubeka, okufakazela ukuthi ukwakheka okuhlangene kungesinye sezizathu ezibalulekile ezenza isihlanganisi sethu se-RF. isadumile eziteshini zokusakaza ezinkulu neziphakathi

#5 Isakhiwo Sangaphakathi sisadinga ukucatshangelwa: Hlobo luni lwemishini yokusakaza engabizwa ngemishini emihle kakhulu yokusakaza? Lona umbuzo okufanele ucabange ngawo. Thatha isihlanganisi njengesibonelo. Emakhulwini empendulo yangemva kokuthengisa yezihlanganisi zethu ze-RF ezithengiswe emhlabeni wonke, sithole okuqukethwe okuthakazelisayo: ngaphezu kwesigamu samakhasimende ethu abike ukuthi awazange acabangele intengo nokubukeka okokuqala lapho enza uphenyo. Kunalokho, bakhangwa imininingwane ethile abantu abavamile ababengenakuyinaka, Ngokwesibonelo, lapho uJack waseLondon ebonisa isithakazelo esikhulu kwesinye sezixazululo zethu zokusakaza ze-turnkey esiteshini sakhe somsakazo kamasipala, samnikeza i-multi- customized multi- sakhiwo isihlanganisi se-40kw transmitter esinemigodi emithathu. Isici esikhulu salo modeli yisakhiwo sayo esilula kanye nokuhlanganiswa kwama-multi-frequency. Eqinisweni, isiteshi somsakazo sika-Jack singesinye esidume kakhulu endaweni, futhi leso sihlanganisi esingu-40kw sisasiza u-Jack nezilaleli zakhe kusukela ngo-2014. Yebo, lena enye yempendulo emihle kakhulu yangemva kokuthengisa yezihlanganisi zethu ze-RF. Amanye amakhasimende amaningi alinganisele ukuthi isihlanganisi sethu sinokukhuphuka okuncane kwezinga lokushisa, idizayini yamandla angasebenzi kakhulu, inhlanganisela yamandla, njll. Sinekhono nokuqiniseka ukukunikeza isevisi yokusakaza engcono.
Ungasisebenzisa kanjani kahle isihlanganisi se-FM esiteshini sokusakaza?
Izinyathelo zokusebenzisa kahle isihlanganisi se-FM esiteshini sokusakaza zifaka:
1. Hlola uhlelo lwe-antenna ukuze uthole noma yimiphi imithombo yokuphazamiseka okungenzeka.
2. Xhuma isihlanganisi se-FM ohlelweni lwe-antenna.
3. Qinisekisa ukuthi wonke ama-transmitters alinganiswe kahle futhi anefrikhwensi yokusebenza efanele.
4. Xhuma isihambisi ngasinye kusihlanganisi se-FM.
5. Hlola i-frequency offset yesithumeli ngasinye ukuze uqiniseke ukuthi singaphakathi kwezidingo zokubekezelela imvamisa ye-FCC.
6. Sebenzisa isihlanganisi ukuhlanganisa amasignali avela kubathumeli abahlukahlukene.
7. Gada amandla esiginali ehlanganisiwe futhi wenze izinguquko njengoba kudingeka.

Izinkinga okufanele uzigweme uma usebenzisa isihlanganisi se-FM zifaka:
1. Ikhwalithi yesignali engalungile ngenxa yokuphazamiseka noma ukumiswa kwefrikhwensi.
2. Ukulayisha ngokweqile isihlanganisi ngokuxhuma ama-transmitter amaningi kakhulu.
3. Amandla esignali anganele ngenxa yokucushwa kwesistimu ye-antenna engafanele.
4. Ukwamukela kabi ngenxa yokubekwa kwezinti okungalungile.
5. Ama-transmitter angalinganiswe ngokungalungile.
Ngabe sisebenza kanjani isihlanganisi se-FM esiteshini sokusakaza?
Izihlanganisi ze-FM zisetshenziswa esiteshini sokusakaza ukuhlanganisa amasiginali amaningi e-FM abe yisignali eyodwa yokusakaza. Lokhu kwenziwa ngokuhlanganisa amasiginali we-FM amaningi abe yimbobo yokuphuma eyodwa. Isihlanganisi se-FM sisebenza njengesihlungi sokuqinisekisa ukuthi amasiginali afiswayo kuphela afinyelela kumamukeli. Iphinde ivumele isiteshi ukuthi sihlanganise amasiginali amaningi sibe isignali eyodwa, okwandisa ukufinyelela kwesiteshi futhi sibavumele ukuthi basakaze ezindaweni eziningi.
Kungani isihlanganisi se-FM sibalulekile futhi siyadingeka esiteshini sokusakaza?
Izihlanganisi ze-FM zibalulekile ngoba zivumela iziteshi zomsakazo eziningi ze-FM ukuthi zisebenze ebangeni elifanayo ngaphandle kokuphazamisana. Ukuba nesihlanganisi nakho kuvumela isiteshi sokusakaza ukuthi sifinyelele izethameli eziningi, njengoba zonke iziteshi ezikuhlanganisela zizwakala ngabalaleli. Kuyadingeka ukuthi isiteshi sokusakaza sibe nesihlanganisi uma sifisa ukusebenza ebangeni elifanayo nelezinye iziteshi.
Zingaki izinhlobo zesihlanganisi FM ezikhona?
Kunezinhlobo ezintathu eziyinhloko zezihlanganisi ze-FM: i-passive, esebenzayo, ne-hybrid. Izihlanganisi ezingenzi lutho zivele zihlanganise amasiginali avela kuma-transmitters amaningi futhi zizithumele ngothi olulodwa. Izihlanganisi ezisebenzayo ziyinkimbinkimbi kakhulu futhi zisebenzisa izingxenye ezisebenzayo, njengezikhulisi nezihlungi, ukuze kuqinisekiswe isignali yekhwalithi ephezulu. Izihlanganisi zeHybrid zihlanganisa izici zazo zombili izihlanganisi ezingenzi lutho nezisebenzayo ukuze zinikeze ibhalansi yekhwalithi yesiginali kanye nezindleko.
Ungasixhuma kanjani kahle isihlanganisi se-FM esiteshini sokusakaza?
Ukuxhuma kahle isihlanganisi se-FM esiteshini sokusakaza, kufanele kuthathwe izinyathelo ezilandelayo:

1. Xhuma i-conductor emaphakathi yolayini wokufaka ngamunye ku-conductor ophakathi komunye wemigqa yokukhiphayo yesihlanganisi.

2. Xhuma isihlangu somugqa ngamunye wokufaka esihlanguni somugqa ofanayo wokuphumayo.

3. Xhuma amakhondatha aphakathi asele emigqa yokuphuma ndawonye.

4. Xhuma izihlangu ezisele zemigqa yokuphuma ndawonye.

5. Xhuma imigqa yokuphumayo kusishumeli se-FM.

6. Xhuma imigqa yokufaka kuma-exciter FM.
Yiziphi izinto zokusebenza ezihlobene nesihlanganisi se-FM esiteshini sokusakaza?
Izinto ezisetshenziswayo ezihlobene nesihlanganisi se-FM esiteshini sokusakaza ngokuvamile zihlanganisa: isidlulisi, isikhulisamandla, uhlelo lwe-antenna, isihlanganisi sokusakaza, i-duplexer, isihlungi sokudlula ibhendi, i-antenna array, uhlelo lokulawula, nombhoshongo.
Yiziphi izici ezibaluleke kakhulu zomzimba neze-RF zesihlanganisi se-FM
Izicaciso ezibaluleke kakhulu zomzimba neze-RF zesihlanganisi se-FM zihlanganisa ububanzi bayo befrikhwensi, ukulahlekelwa kokufaka, ukulahlekelwa ukubuyisela, ukuhlukaniswa, ukwenqatshwa okuvumelanayo, nokubamba amandla. Ukwengeza, isihlanganisi kufanele sibe nesibalo esincane somsindo, ukuhleleka okuhle, nezinga eliphezulu lokuthembeka.
Ungasigcina kanjani kahle isihlanganisi se-FM esiteshini sokusakaza njengonjiniyela?
Ukuze enze kahle ukunakekelwa kwansuku zonke kwesihlanganisi se-FM esiteshini sokusakaza, unjiniyela kufanele:
1. Hlola ingaphandle lesihlanganisi ukuze uthole izimpawu zokulimala noma ukuguga.
2. Hlola ukuthi konke ukuxhumana kuphephile futhi kuqinile.
3. Hlola amazinga amandla futhi wenze izinguquko ezidingekayo.
4. Hlola uthi ukuze uthole noma yiziphi izimpawu zokulimala noma ukugqwala.
5. Hlola izihlungi futhi uqiniseke ukuthi zihambisana kahle futhi ziyasebenza.
6. Hlola isihlanganisi ukuze uthole noma yiziphi izimpawu zokuphazamiseka noma ukuhlanekezela.
7. Yenza ibhalansi ye-RF ukuze uqinisekise ukusebenza kahle.
8. Hlola amazinga okukhipha amandla bese ulungisa njengoba kudingeka.
9. Qapha isistimu kunoma yikuphi ukungahambi kahle noma izinkinga.
10. Hlanza noma shintsha noma yiziphi izingxenye njengoba kudingeka.
Ungasilungisa kanjani isihlanganisi se-FM uma sihluleka ukusebenza?
Ukuze ulungise isihlanganisi se-FM, uzodinga kuqala ukukhomba ukuthi yini ebangela ukuthi singaphumeleli. Uma isihlanganisi sivuthele amafuse, ungawashintsha ufake amasha. Uma isihlanganisi sihlushwa ukuphazamiseka kagesi, ungashintsha ama-capacitor noma usebenzise izinto zokuvikela ukuze unciphise ukuphazamiseka. Uma isihlanganisi sinenkinga yokuxhumana, ungabheka ukuxhumana bese ushintsha noma yiziphi izingxenye eziphukile. Uma isihlanganisi sinenkinga yomshini, ungashintsha izingxenye eziphukile. Qiniseka ukuthi uthola izingxenye ezihambisana nesihlanganisi. Ungase futhi udinge ukulungisa izilungiselelo kusihlanganisi ukuze uqinisekise ukuthi sisebenza kahle.
Hlobo luni lwempahla i-casing yesihlanganisi se-FM ngokuvamile eyenziwa ngayo?
I-casing yesihlanganisi se-FM ngokuvamile yenziwa ngensimbi, njenge-aluminium noma insimbi, futhi lezi zinto zingathinta ukusebenza kwayo. Izinto zensimbi zinganciphisa ukuphazamiseka okuvela emithonjeni yangaphandle futhi zisize ukuvikela izingxenye zangaphakathi emonakalweni. Kodwa-ke, uma i-casing yensimbi iminyene kakhulu, ingethula ukulahlekelwa okwengeziwe, inciphise ukusebenza kahle okuphelele kwesihlanganisi.
Siyini isakhiwo esiyisisekelo sesihlanganisi se-FM?
Isakhiwo esiyisisekelo sesihlanganisi se-FM siqukethe ikhanda lesihlanganisi (esiphinde sibizwe ngokuthi yikhabhinethi yesihlanganisi), i-duplexer, isihlungi sokudlula ibhendi, kanye nesikhulisi samandla. Ikhanda lesihlanganisi liqukethe izingxenye ezilawulayo ezifana nephrosesa yokulawula, iziguquli zedijithali-kuya-analogi, nezinye izici zokulawula. I-duplexer inesibopho sokuhlukanisa i-transmit futhi yamukele amasignali. Isihlungi se-band pass sinesibopho sokwenqaba amafrikhwensi angafuneki nokukhetha ibanga lefrikhwensi oyifunayo. I-amplifier yamandla inesibopho sokukhulisa amandla esignali. 
Inhloko yesihlanganisi inquma izici nokusebenza kwesihlanganisi se-FM. Uma inhloko yesihlanganisi ingekho, isihlanganisi se-FM ngeke sikwazi ukusebenza ngendlela evamile. Ezinye izingxenye, njenge-duplexer, i-band pass filter, ne-amplifier yamandla, zonke zidinga ukuxhunywa ekhanda lesihlanganisi ukuze sisebenze kahle.

Esiteshini sokusakaza, ubani okufanele abelwe ukuphatha isihlanganisi se-FM?
Umuntu okufanele abelwe ukuphatha isihlanganisi se-FM kufanele awaqonde kahle amandla esignali futhi abe namakhono obuchwepheshe nolwazi ukuze afake, anakekele, futhi axazulule izisetshenziswa. Kufanele bakwazi ukusebenza ngokuzimela futhi babe namakhono aqinile enhlangano nezokuxhumana.

Ungakhetha kanjani ukupakishwa okufanele kwesihlanganisi se-FM?
Lapho ukhetha ukupakisha okulungile kwesihlanganisi se-FM, kubalulekile ukucabangela usayizi, isisindo, kanye nobuthaka bento. Kufanele ihlanganiswe ngendlela ezoyivikela emithelelaneni, ekushintsheni kwezinga lokushisa, nasemanzini. Ukwengeza, kufanele ivikelwe emaphaketheni ngendlela evimbela ukuthi inganyakazi noma ishelele. Lapho uthutha isihlanganisi se-FM, kubalulekile ukwenza isiqiniseko sokuthi iphakethe libhalwe imininingwane efanele yokuthumela nokuthi livalwe kahle ukuze kuncishiswe noma yimuphi umonakalo ongaba khona. 
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