Izihlungi ze-RF Cavity

Ukuphi Ukuthenga Isihlungi Esiphansi Sesiteshi Somsakazo?

 

 

U-FMUSER ube ngomunye wabahamba phambili abahlinzeki bemishini yesitudiyo somsakazo cishe ikhulunyaka. Kusukela ngo-2008, i-FMUSER idale indawo yokusebenza ekhuthaza ukusebenzisana kokudala phakathi kwezisebenzi zonjiniyela abanamakhono aphezulu kanye nethimba elikhiqizayo elicophelelayo. Ngalo moya nokuzinikela ekusebenzisaneni kweqiniso, i-FMUSER ikwazile ukwenza eminye yemihlangano emisha kakhulu ye-elekthronikhi, isebenzisa izimiso ezihlolwe isikhathi zayizolo futhi ihlanganisa nesayensi ethuthukisiwe yanamuhla. Enye yezimpumelelo zethu eziziqhenya kakhulu, kanye nokukhetha okudumile kwamaklayenti ethu amaningi, eyethu Isihlungi se-RF low pass esiteshini somsakazo.

 

"Uma ufuna izinto ezithengiswayo zesiteshi somsakazo ezithengiswayo, kungani ungakhethi enye yalezo zisetshenziswa zestudiyo zokusakaza ezihamba phambili ku-FMUSER? Bamboza wonke amabanga emihlangano yesihlungi se-radiofrequency, eminye yayo ibalulekile esiteshini somsakazo, ngokwesibonelo, isihlungi se-FM low pass, kanye ne-HPF eminingi ethengiswayo, i-BPF iyathengiswa, i-BSF iyathengiswa, nezihlungi ezisezingeni eliphansi zokudlula. ukuthengiswa okufana nesihlungi sokudlula esiphansi esingu-88-108Mhz siyathengiswa. Isihlungi se-UHF ne-VHF njengesihlungi se-UHF bandpass nesihlungi se-VHF bandpass, futhi vele, banazo nemishini yesitudiyo yomsakazo esezingeni eliphezulu ethengiswayo."

- - - - - UJames, ilungu elithembekile le-FMUSER

 

Isiqephu Esilandelayo sithi Kungani Kudingeka Izihlungi Zamandla Aphansi E-RF? Yeqa

 

Esikuletha ngakho Kuleli Page

 

  1. Ungasithenga Kuphi Isihlungi Se-Low Pass?
  2. Kungani Kudingeka Izihlungi ze-Low Pass RF?
  3. Kwenzeka Kanjani Ukukhishwa Kwe-Harmonic Okucasulayo Nokukhohlisayo?
  4. Isihlungi Se-RF Low Pass esingcono kakhulu esithengiswayo 
  5. Ungasikhetha Kanjani Isihlungi Esingcono Kakhulu se-FM Harmonics Yesiteshi Somsakazo?
  6. Amaqiniso Athakazelisayo Ngezihlungi ze-RF

 

 Isihlungi se-FMUSER 20kW FM Low Pass Sisebenza Kahle Ku:

 

  • Iziteshi zomsakazo zoKhozi FM ezifundazweni, kumasipala nasemazingeni aselokishini
  • Iziteshi zomsakazo ze-FM ezimaphakathi nezinkulu ezinomsakazo obanzi kakhulu
  • Isiteshi somsakazo se-FM esinezilaleli ezingaphezu kwezigidi
  • Abaqhubi beziteshi zomsakazo abadinga izixazululo eziphelele ze-turnkey yomsakazo ngezindleko eziphansi

 

Sibonga imboni esezingeni lomhlaba, i-FMUSER, njengomkhiqizi ohamba phambili we ukuthengiswa kwemishini yokusakaza, isebenze ngempumelelo zonke izinhlobo zamakhasimende ngokuhlinzeka izixazululo eziphelele zokusakaza iminyaka engaphezu kwe-10, into eyodwa eqinisekile ukuthi a isihlungi se-lowpass samandla aphezulu ngokuhlunga kwe-harmonics yesi-2 neyesi-3 ngokuvamile kusetshenziswa ukuhlanganisa nokuhlukanisa amasignali omsakazo angenazintambo kuma-transmitters omsakazo we-FM amaningi. 

 

"Ngeke ngithi u-FMUSER ungumphakeli wezinto zesiteshi somsakazo ohamba phambili emhlabeni, kodwa kwabanye babaqhubi beziteshi zomsakazo, yebo, u-FMUSER ungumhlinzeki onokwethenjelwa nomkhiqizi we imishini yesiteshi somsakazo."

 

 - - - - - UPeter, ilungu elithembekile le-FMUSER

 

▲ Ungasithenga kuphi Isihlungi Esingcono Kakhulu se-FM Low Pass ▲

▲ Buyela Kokuqukethwe ▲

 

Kungani I-RF Low Power Filters Idingeka Esiteshini Somsakazo?

 

Ingxenye Eyedlule yile Ungasithenga kuphi Isihlungi Esingcono Kakhulu se-FM Low Pass | Yeqa

Isiqephu Esilandelayo sithi Kwenzeka Kanjani Ukukhishwa Kwe-Harmonic Okucasulayo Nokumangazayo | Yeqa

 

Ingxenye Ebalulekile Yezisetshenziswa Zesiteshi Somsakazo

 

Nazi izizathu ezimbalwa zokuthi kungani izihlungi ze-RF low pass zidingeka embonini yokusakaza yomsakazo:

 

  • I-Harmonic kanye nokukhishwa okungamanga akunakugwenywa, futhi kuzothinta iziteshi zomsakazo kumabhendi amafrikhwensi omsakazo ahlukene futhi kunciphise ikhwalithi yezinhlelo zomsakazo futhi lokho kuyinani eliyinhloko lesihlungi se-coaxial low pass esiteshini somsakazo.

 

  • Uma ungasebenzisi isihlungi se-RF low pass esichwepheshile, kungenzeka ujeziswe umnyango olawula umsakazo wendawo (njenge-FCC) ngokudala ukuphazamiseka okukhulu emsakazweni, isibonelo, izinombolo zokuhambisana okungafunwa kanye nokukhishwa okungamanga okukhiqizwe umsakazo wakho kanye I-TV transmitter

 

  • Izithutha zomsakazo zisebenzisa izihlungi zamandla aphezulu ezidlula kancane ukuvimbela ukukhishwa kwe-harmonic okungase kuphazamise okunye ukuxhumana.

 

  • Ukucindezela ama-harmonics omsakazo we-FM: Izidluliseli ze-FM zivame ukukhiqiza ama-harmonics - ukuphindaphinda kwamafrikhwensi okudlulisela. Ezinye zazo ziholela ekuphazamisekeni kokwamukela i-VHF-tv kanye ne-UHF-tv kanye nokupheja nokwamukela umsakazo wamaselula. Lolu chungechunge lwezihlungi zokudlula okunamandla aphansi ludlula kulo lonke ibhendi yefrikhwensi ye-FM ngokulahleka okuphansi futhi lunikeze ukucindezelwa okuningi kwe-harmonic.

 

 

Thenga Isihlungi se-RF Harmonics ku-FMUSER Broadcast

 

Inani eliphakeme kakhulu lama- Isihlungi se-RF Harmonics ukusiza iziteshi zomsakazo ukukhetha amasignali adingekayo ukuze zisetshenziswe. Ikakhulukazi eziteshini ezinkulu zemisakazo, indlela yokuhlinzeka abalaleli ngezinhlelo zomsakazo ezisezingeni eliphezulu ngaphandle kokujeziswa abaphathi bemisakazo basekhaya kuyisidingo sokuthuthukisa ukuncintisana kontanga nokuthuthukisa ukuqwashisa ngemikhiqizo yemisakazo.

 

Ukunikezwa kwe-FMUSER izihlungi ze-harmonic njenge 20kW FM isihlungi sokudlula esiphansi kumazinga wamandla okuhambisa afinyelela ku-20 kW. Umklamo oyingqayizivele uhlinzeka ngo-45 dB noma ukwenqatshwa okukhulu kusukela kweyesibili kuya kweyeshumi ye-harmonic nangaphezulu. Lokhu kukhiqiza izihlungi ezinobude bubonke obungu-30% ukuya ku-50% obufushane kunezihlungi ezijwayelekile ze-FM ezihambisanayo. 

 

Sinezihlungi ze-RF ezihamba phambili ezithengiswayo, thenga izihlungi ze-RF lawo mandla asuka ku-500W ukuya ku-1000W asuka ku-FMUSER! Ngokuqondile, banjalo Isihlungi sephasi esiphansi esingu-20kW FM siyathengiswa (LPF) kanye 10kW VHF izihlungi zokudlula eziphansi ziyathengiswa (LPF), Isihlungi se-bandtop esingu-10kW VHF siyathengiswa (BSF), Isihlungi se-bandpass yedijithali esingu-350W UHF siyathengiswa, kanye nenye yemishini yethu yesiteshi somsakazo ethengiswa kakhulu - izihlungi ze-FM bandpass ziyathengiswa.

 

Ungathola konke okudingayo uma uqhubeka nokuhlola, sinakho Izihlungi ze-bandpass FM lawo mandla asukela ku-500W kuya ku-1kW, ikakhulukazi, angu-500W, 1500W, 3000W, 5000W, 10000W Izihlungi ze-bandpass FM eziklanyelwe iziteshi zomsakazo we-FM. Ngaphandle kwalokho, ukwenza ngokwezifiso kuyatholakala kuzihlungi ze-harmonics, zonke zinezindleko zebhajethi nekhwalithi emangalisayo, sicele ukuthi sithole ukwesekwa, sonke siyizindlebe!

 

Njengomunye wemihlangano ebaluleke kakhulu yokusakaza yeziteshi zomsakazo we-FM / TV, i Isihlungi somgodi we-RF kudingekile njengesihlanganisi se-FM / UHF / VHF, isidluliseli somsakazo, i-antenna, nezinye izinto ezifanayo zesiteshi sokusakaza. Akulona ihaba ukusho ukuthi njengomkhiqizo oyinhloko wemikhiqizo ye-RF ye-passive, izihlungi empeleni zibaluleke kakhulu kunanoma yimuphi omunye umhlangano ovamile wokuphindaphinda kanye neziteshi eziyisisekelo.

 

Noma kunjalo, isihlungi se-RF, ngokwesibonelo, isihlungi se-RF ye-pass ephansi, siyithuluzi elidingekayo ohlangothini lokudlulisa lwesiteshi sokusakaza ukucindezela ama-harmonics akhiqizwa isidlulisi. Lokhu kungenxa yokuthi opharetha bohlelo lwe-RF emhlabeni wonke basebenzisa amaza ahlukene, ngakho-ke kunezimpawu eziningi ezingcolile ezinyakazayo emoyeni, ezinye zazo ezethelevishini, ezempi, ezinye ezocwaningo lwesimo sezulu nezinye izinjongo.

 

▲ Kungani Kudingeka Izihlungi ze-RF Esiteshini Somsakazo ▲

▲ Buyela Kokuqukethwe ▲

 

Kwenzeka Kanjani Ukukhishwa Kwe-Harmonic Okucasulayo Nokukhohlisayo?

 

Ingxenye Eyedlule yile Kungani Kudingeka Izihlungi ze-Low Pass RF Yeqa

Isiqephu Esilandelayo sithi Isihlungi esihle kakhulu se-RF Harmonics esithengiswayo | Yeqa

 

Okukhathaza bonke onjiniyela be-RF ukuthi ukukhishwa kwe-harmonic ne-spurious akunakugwenywa. Kubaqhubi beziteshi zomsakazo, kubaluleke kakhulu ukuqonda ukuthi iyini i-harmonics kanye negesi engamanga, noma ukuthi akhiqizwa kanjani nokuthi angawunciphisa kanjani umthelela wawo.

 

Ngasikhathi sinye, kuyazuzisa futhi ukulawula ikhwalithi yezinhlelo zeziteshi zomsakazo, ithimba lezobuchwepheshe le-FMUSER le-RF lisichazele ulwazi oluthile lwethiyori mayelana nokuvumelana nokukhipha izinto ezingamanga.

 

Uma ufuna ukuqonda okwengeziwe ukuthi kungani iziteshi zomsakazo zidinga izihlungi ze-RF ezichwepheshile, ungase udinge okuqukethwe okulandelayo

 

I-Harmonics Yenziwa Kanjani?

 

Amafrikhwensi avela ngokuphindaphinda ncamashi kwefrikhwensi yokufaka abizwa ngokuthi ama-harmonics. Ngamanye amazwi, ama-harmonics awukudluliselwa okungafunwa, okuphindaphindeka kwemvamisa yokudlulisela okulindelekile. Lokhu kudluliswa okungadingeki kwenzeka ezingeni lamandla eliphansi kunelokudluliswa okufunayo.

 

Njengoba sonke sazi, kunemishini edingekayo eziteshini zomsakazo, okungukuthi, ama-radio transmitters. Ukuthi i-1kW noma i-10kW transmitter izoklanywa ngokukhethekile, futhi ingxenye eyisisekelo ye-RF yesidluliseli ifakelwe isihlungi se-band-pass, kodwa cishe wonke ama-RF transmitter azokhiqiza ama-harmonics, Ngisho nesidlulisi esingenazintambo esichwepheshile asikwazi ukugwema konke ukufutha nokuduka. ukuphuma

 

I-Harmonics nayo ibhekwa njengembangela engaba khona yokuphazanyiswa kwe-RF. Amanye amagagasi, njengamagagasi ayisikwele, amagagasi e-sawtooth, namagagasi angunxantathu, aqukethe amandla amaningi kumaza e-harmonic.

 

Ikhiqizwa kanjani i-Spurious Emission?

 

Ngokungafani nama-harmonics, ukukhishwa okungamanga akwenzeki lapho imvamisa yokufaka iphindwe kabili; Abazange bayisakaze ngamabomu. Ukukhishwa okungamanga kungukuphuma kwengozi, okuvame ukwaziwa ngokuthi i-splash. Ziwumphumela we-intermodulation, ukuphazamiseka kuka-electromagnetic, ukuguqulwa kwemvamisa, noma ama-harmonics.

 

▲ Kwenzeka Kanjani Ukukhishwa Kwe-Harmonic Okucasulayo Nokumangazayo ▲

▲ Buyela Kokuqukethwe ▲

 

Isihlungi Samandla Aphansi E-RF Esingcono Kakhulu Esithengiswayo 

 

Ingxenye Eyedlule yile Ukuthi I-Harmonics kanye Nokukhishwa Okumangazayo Kwenzeka Kanjani | Yeqa

Isiqephu Esilandelayo sithi Ungasikhetha Kanjani Isihlungi Esingcono Kakhulu se-FM Harmonics Yeqa

 

Udinga Lesi sihlungi se-Low Pass RF Kakhulu Kunangaphambili

 

Sonke siyazi ukuthi ama-radio transmitters ayasebenza izihlungi ze-RF ezidlula kancane ukuvimbela ama-harmonics nokukhishwa okungamanga okungase kuphazamise okunye ukuxhumana, kuyilapho abasakazi be-FM abaningi bekhiqiza ama-harmonic ngisho namashumi ezikhathi zefrikhwensi eyisisekelo. 

 

Ngenhlanhla, FMUSER 20kW FM isihlungi sokudlula esiphansi ingenye yemihlangano engcono kakhulu yokuhlunga ye-RF yebhendi yefrikhwensi yokusakaza ye-FM. Ukuze usize ukwehlisa umthelela olethwa i-harmonics kanye nokuphuma okungamanga, i-FMUSER yethula lapha esinye sezihlungi zethu ze-harmonic eziziqhenyayo- I-20kW Isihlungi se-RF low pass esiteshini somsakazo we-FM.

 

Isihlungi se-Low Pass RF Sidizayinelwe Ikhwalithi Engcono Kakhulu Kuphela

 

Uma ungafuni ukuthi lawo ma-harmonics angafuneki awele kubhendi yefrikhwensi engabalulekile kuwe futhi abangele ukuphazamiseka okukhulu (ungathola inqwaba yezincwadi zesikhalazo eziyinkinga futhi ujeziswe ezinye izikhungo ezilawulayo), isibonelo, amaza eziteshi ze-TV noma ezinye iziteshi zomsakazo. Ukusebenzisa i-FMUSER 20kW RF isihlungi sokudlula okuphansi kuyindlela engcono kakhulu yokukusiza ukuthi ukhulule kulawo ma-harmonics acasulayo kanye nezincwadi zesikhalazo ezinzima. 

 

 

  • Ikhono Lokuhlunga I-Harmonics Engavamile

 

Isici esikhulu salokhu amandla aphezulu isihlungi esiphansi sokudlula yiyo ikhono le-harmonic attenuation - ngokuya ngedatha yokuhlola enokwethenjelwa yethimba lokuhlola le-FMUSER, ukuncishiswa kwe-harmonic kwesibili kanye nokuncishiswa okuphezulu kwalokhu 20kW isihlungi se-RF esidlula kancane zifinyelele ngokulandelana ≥ 35 dB kanye ≥ 60 dB, okuwumthamo oqinile wokuhlunga wama-harmonics esiteshini somsakazo. 

 

  • Ukulahlekelwa Kokufaka Okuphansi Kakhudlwana

 

The ukulahleka kokufakwa okuphansi kwe-FMUSER 20kW FM isihlungi sokudlula esiphansi iyenza ifanelekele amazinga wamandla afinyelela ku-20000 watts, okusho ukuthi ngalesi sihlungi se-RF esimangalisayo, uyakwazi ukuhlanganisa usebenzisa ama-transmitters omsakazo ahlukahlukene anamandla ahlukene esiteshini somsakazo, futhi izethameli zingathola izinhlelo zomsakazo izinga eliphezulu kakhulu kanye nama-harmonics aphansi kakhulu! Isixhumi: 3 1 / 8 "amandla okufaka aphezulu 20kw

 

  • Umuzwa Womsebenzisi Ongcono Kakhulu

 

Izihlungi ze-Low Pass ezingu-20kW ezithengiswayo, ezakhelwe ngaphakathi ngohlelo olulula lokuxhuma, zakhelwe ngokukhethekile Isiteshi Somsakazo I-FM. Uma ucabangela isipiliyoni somsebenzisi esingcono kakhulu, isistimu yokuhlunga yenza kube lula ukuhlanganisa kuma-transmitters e-FM.

 

I-FMUSER inikezela ngomugqa ophelele we Izihlungi ze-FM kanye ne-UHF/VHF ngokucindezelwa kwama-harmonics eziteshini zokusakaza. 

 

Emhlabeni jikelele, singathanda ukusiza osebenza ngeziteshi zomsakazo emhlabeni wonke ukuthi bahlukanise abasakazi be-FM abasondelene eduze, siyaqaphela ukuthi abanye babo bakhombisa intshisekelo enkulu yokuhlanganisa amaza omsakazo amaningi e-FM kwi-antenna eyodwa eyinhloko, abanye bangathanda ukwenza izicelo ngokwezifiso. kubathumeli babo abaningi eziteshini zabo. 20kW FM isihlungi sokudlula esiphansi, ngokwesibonelo, ingenye yezithengiswa kakhulu Izihlungi ze-harmonics ze-FM esetshenziselwa ukuhlanganisa ama-transmitters omsakazo we-FM amandla afinyelela ku-20kW, ungase ubone le ndoda eziteshini ezinkulu ze-FM.

 

SIHLALA SILALELA IZIDINGO ZAKHO uma unentshisekelo kokukodwa kokuthengisa kwethu okuphezulu Izihlungi ze-harmonics ze-RF. 

 

Qagela Udinga Okungaphezu Kwalokho Okubonayo

 

Njengoba sishilo ngenhla, singabanye abahamba phambili abakhiqizi bemishini yesiteshi somsakazo endaweni yomhlaba, ngaphandle kwe- 20kW isihlungi se-RF esidlula kancane, ungase futhi uhlangane nabanye izihlungi ze-RF ezithengiswa kakhulu kokuqukethwe okulandelayo. Yebo, ikhwalithi enhle nezindleko zebhajethi njengenjwayelo.

 

Ishadi A. FM/VHF LPF Isihlungi Sokudlula Okuphansi Sithengiswa

 

Okulandelayo ngu 10kW VHF Bandreject Isihlungi VHF Isihlungi se-BSF Bandstop fnoma Ukuthengisa | Yeqa

 

Ukwahlukanisa imodeli I-Max. Amandla wokufaka I-VSWR

imvamisa uhla

Ukulinda

  2 i-harmonic

  3rd i-harmonic

Izixhumanisi Vakashela ukuze uthole okwengeziwe
FM A 20 kW

 1.1

87 - 108 MHz

 35 dB

 60 dB

3 1 / 8 "

Okuningi
I-VHF B 10 kW

 1.1

167 - 223 MHz

 35 dB

 60 dB

3 1 / 8 "

Okuningi

 

Ishadi B. 10kW VHF BSF Bandstop Bandreject Filter Iyathengiswa

 

Okwangaphambili ngu Isihlungi se-FM/VHF LPF Low Pass siyathengiswa | Yeqa

Okulandelayo ngu 350W UHF DTV BPF Bandpass Filter Iyathengiswa | Yeqa

 

Ukwahlukanisa imodeli I-Max. Amandla wokufaka I-VSWR fv f0±4MHz
imvamisa uhla

Ukulinda

fv-4.43±0.2MHz

Izixhumanisi Vakashela ukuze uthole okwengeziwe
I-VHF A 10 kW ≤ 1.1
≤ 1.1

167 - 223 MHz

 20 dB

3 1 / 8 " Okuningi

 

Ishadi C. 350W UHF DTV BPF Bandpass Filter Iyathengiswa

 

Okwangaphambili ngu 10kW VHF BSF Bandstop Bandreject Filter Iyathengiswa | Yeqa

Okulandelayo ngu Isihlungi se-FM BPF Bandpass siyathengiswa | Yeqa

 

Ukwahlukanisa imodeli I-Max. Amandla wokufaka Izikhala I-VSWR Ukufelwa kokufakiwe f0
f0±3.8MHz
f0±4.2MHz
f0±6MHz
f0±12MHz
Vakashela ukuze uthole okwengeziwe
UHF
A
350W
6

 1.15

474 MHz

 I-0.50 dB

 1.3db

 8 dB

 20 dB

 40 dB

Okuningi

858 MHz

 I-0.60 dB

 1.65 dB

 8 dB

 20 dB

 40 dB

Okuningi

 

Ishadi D. Isihlungi sebhendi ye-BPF FM siyathengiswa

 

Okwangaphambili ngu 350W UHF DTV BPF Bandpass Filter Iyathengiswa | Yeqa

Okulandelayo ngu Isihlungi se-VHF BPF Bandpass siyathengiswa | Yeqa

 

Ukwahlukanisa imodeli I-Max. Amandla wokufaka Izikhala I-VSWR

imvamisa uhla

Ukufelwa kokufakiwe

f0

f0±300kHz

f0±2MHz

f0±4MHz

Izixhumanisi Vakashela ukuze uthole okwengeziwe
FM A 500W

3

 1.1

87 - 108 MHz

≤ 0.70 dB

≤ 0.75 dB

≥25 dB

≥40 dB

7-16 DIN

Okuningi
FM A1 500W

4

 1.1

87 - 108 MHz

≤ 1.10 dB

≤ 1.20 dB

≥40 dB

≥60 dB

7-16 DIN

Okuningi
FM A

1500W

I-1.5kW

3

 1.1

87 - 108 MHz

Ukufelwa kokufakiwe

≤ 0.30 dB

≤ 0.35 dB

≥25 dB

≥40 dB

7-16 DIN

Okuningi
FM A1

1500W

I-1.5kW

4

 1.1

87 - 108 MHz

≤ 0.50 dB

≤ 0.60 dB

≥40 dB

≥60 dB

7-16 DIN

Okuningi
FM A

3000W

I-3kW

3

 1.1

87 - 108 MHz

Ukufelwa kokufakiwe

≤ 0.25 dB

≤ 0.30 dB

≥25 dB

≥40 dB

1 5 / 8 "

Okuningi
FM A1

3000W

I-3kW

4

 1.1

87 - 108 MHz

≤ 0.40 dB

≤ 0.45 dB

 I-40 dB

≥60 dB

1 5 / 8 "

Okuningi
FM A

5000W

I-5kW

3

 1.1

87 - 108 MHz

Ukufelwa kokufakiwe

≤ 0.20 dB

≤ 0.25 dB

 I-25 dB

≥40 dB

1 5 / 8 "

Okuningi
FM A1

5000W

I-5kW

4

 1.1

87 - 108 MHz

≤ 0.35 dB

≤ 0.40 dB

≥40 dB

≥60 dB

1 5 / 8 "

Okuningi
FM A

10000W

I-10kW

3

 1.1

87 - 108 MHz

Ukufelwa kokufakiwe

≤ 0.15 dB

≤ 0.15 dB

≥25 dB

≥40 dB

3 1 / 8 "

Okuningi
FM A1

10000W

I-10kW

4

 1.1

87 - 108 MHz

≤ 0.25 dB

≤ 0.30 dB

 I-40 dB

≥60 dB

3 1 / 8 "

Okuningi

 

Ishadi E. VHF Isihlungi se-BPF Bandpass siyathengiswa

 

Okwangaphambili ngu Isihlungi se-FM BPF Bandpass siyathengiswa | Yeqa

Buyela ku Isihlungi se-FM/VHF LPF Low Pass siyathengiswa | Yeqa

 

Ukwahlukanisa imodeli I-Max. Amandla wokufaka Izikhala I-VSWR

imvamisa uhla

Ukufelwa kokufakiwe

f0

f0±300kHz

f0±2MHz

f0±4MHz

Izixhumanisi Vakashela ukuze uthole okwengeziwe
I-VHF A 500W

4

 1.1

167 - 223MHz

≤ 0.40 dB

≤ 0.50 dB

≥20 dB

≥35 dB

7-16 DIN

Okuningi
I-VHF A1 500W

6

 1.1

167 - 223MHz

≤ 0.80 dB

≤ 1.00 dB

≥50 dB

≥70 dB

7-16 DIN

Okuningi
I-VHF A

1500W

I-1.5kW

4

 1.1

167 - 223MHz

Ukufelwa kokufakiwe

≤ 0.15 dB

≤ 0.20 dB

≥20 dB

≥35 dB

1 5 / 8 "

Okuningi
I-VHF A1

1500W

I-1.5kW

6

 1.1

167 - 223MHz

≤ 0.25 dB

≤ 0.30 dB

≥50 dB

≥70 dB

1 5 / 8 "

Okuningi
I-VHF A

3000W

I-3kW

3

 1.1

167 - 223MHz

Ukufelwa kokufakiwe

≤ 0.10 dB

≤ 0.15 dB

≥10 dB

≥20 dB

1 5 / 8 "

Okuningi
I-VHF A1

3000W

I-3kW

4

 1.1

167 - 223MHz

≤ 0.20 dB

≤ 0.25 dB

≥20 dB

≥35 dB

1 5 / 8 "

Okuningi
I-VHF A

5000W

I-5kW

3

 1.1

167 - 223MHz

Ukufelwa kokufakiwe

≤ 0.10 dB

≤ 0.10 dB

≥10 dB

≥20 dB

1 5 / 8 "

Okuningi
I-VHF A1

5000W

I-5kW

4

 1.1

167 - 223MHz

≤ 0.15 dB

≤ 0.20 dB

≥20 dB

≥35 dB

1 5 / 8 "

Okuningi
I-VHF A

10000W

I-5kW

3

 1.1

167 - 223MHz

Ukufelwa kokufakiwe

≤ 0.10 dB

≤ 0.10 dB

≥10 dB

≥20 dB

3 1 / 8 "

Okuningi
I-VHF A1

10000W

I-5kW

4

 1.1

167 - 223MHz

≤ 0.15 dB

≤ 0.20 dB

≥20 dB

≥35 dB

3 1 / 8 "

Okuningi

 

Thenga Isihlungi se-RF Harmonics Sesiteshi Somsakazo? Nansi Indawo Elungile!

 

U-FMUSER ungomunye wabakhiqizi bezihlungi ze-RF abahamba phambili abakhiqizayo I-harmonics Isihlungi siyathengiswa emazweni nasezifundeni eziseduze kuka-200+ emhlabeni jikelele, nanka amazwe aphakanyisiwe lapho ungenza ireferensi khona.

 

Afghanistan, Albania, Algeria, Andorra, Angola, Antigua and Barbuda, Argentina, Armenia, Australia, Austria, Azerbaijan, The Bahamas, Bahrain, Bangladesh, Barbados, Belarus, Belgium, Belize, Benin, Bhutan, Bolivia, Bosnia and Herzegovina, Botswana , Brazil, Brunei, Bulgaria, Burkina Faso, Burundi, Cabo Verde, Cambodia, Cameroon, Canada, Central African Republic, Chad, Chile, China, Colombia, Comoros, Congo, Democratic Republic of the, Congo, Republic of the, Costa Rica , Côte d'Ivoire, Croatia, Cuba, Cyprus, Czech Republic, Denmark, Djibouti, Dominica, Dominican Republic, East Timor (Timor-Leste), Ecuador, Egypt, El Salvador, Equatorial Guinea, Eritrea, Estonia, Eswatini, Ethiopia, Fiji, Finland, France, Gabon, Gambia, Georgia, Germany, Ghana, Greece, Grenada, Guatemala, Guinea, Guinea-Bissau, Guyana, Haiti, Honduras, Hungary, Iceland, India, Indonesia, Iran, Iraq, Ireland, Israel , Italy, Jamaica, Japan, Jordan, Kazakhstan, Kenya, Kiribati, Korea, North, Korea, South, Kosovo, Kuwait,Kyrgyzstan, Laos, LATVia, Lebanon, Lesotho, Liberia, Libya, Liechtenstein, Lithuania, Luxembourg, Madagascar, Malawi, Malaysia, Maldives, Mali, Malta, Marshall Islands, Mauritania, Mauritius, Mexico, Micronesia, Federated States of, Moldova, Monaco , Mongolia, Montenegro, Morocco, Mozambique, Myanmar (Burma), Namibia, Nauru, Nepal, Netherlands, New Zealand, Nicaragua, Niger, Nigeria, North Macedonia, Norway, Oman, Pakistan, Palau, Panama, Papua New Guinea, Paraguay, Peru, Philippines, Poland, Portugal, Qatar, Romania, Russia, Rwanda, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, Samoa, San Marino, Sao Tome and Principe, Saudi Arabia, Senegal, Serbia, Seychelles, Sierra Leone, Singapore, Slovakia, Slovenia, Solomon Islands, Somalia, South Africa, Spain, Sri Lanka, Sudan, Sudan, South, Suriname, Sweden, Switzerland, Syria, Taiwan, Tajikistan, Tanzania, Thailand, Togo, Tonga, Trinidad and Tobago , Tunisia, Turkey, Turkmenistan, Tuvalu, Uganda, Ukraine, United Arab E mirates, United Kingdom, United States, Uruguay, Uzbekistan, Vanuatu, Vatican City, Venezuela, Vietnam, Yemen, Zambia, Zimbabwe

 

Sihlala Sikhona Ngezidingo Zakho

 

Usacabanga nge Intengo yesihlungi se-harmonics ye-RF? Sakha futhi sakha isabelomali futhi siyathengeka izihlungi ze-harmonics zeziteshi zomsakazo, kusukela Izihlungi eziphansi ze-LPF kuya izihlungi ze-bandtop futhi Izihlungi ze-bandpass FM/UHF/VHF, njll

 

Gcwalisa ishidi elithi "Thintana nathi" kwesokunxele futhi sazise imininingwane yakho edingekayo, omunye wokuthengisa kwethu onolwazi uzophendula ngokushesha futhi asize ukukhetha i Isihlungi se-harmonics ye-FM/TV ehlangabezana nesidingo sakho, ikakhulukazi emibuzweni efana nesihlungi sephasi eliphansi elithengiswayo eliphezulu, ukwenza ngendlela oyifisayo isihlungi se-bandpass, isisombululo esiphelele sokujika sokhiye wokuhlunga, njll. Nokho, imibuzo evamile efana nenani, isikhathi sokulethwa, noma imininingwane nayo imahhala ukuyibuza. Isho okudingayo, SIYALALELA NJALO.

 

▲ Isihlungi esihle kakhulu se-RF Harmonics esithengiswayo  ▲

▲ Buyela Kokuqukethwe ▲

 

Ungasikhetha Kanjani Isihlungi Esingcono Kakhulu se-FM Harmonics Yesiteshi Somsakazo?

 

Ingxenye Eyedlule yile Isihlungi esihle kakhulu se-RF Harmonics esithengiswayo | Yeqa

Isiqephu Esilandelayo sithi Amaqiniso Athakazelisayo kanye ne-Q&A mayelana nezihlungi ze-RF Yeqa

 

Amanye amaklayenti ethu anokungabaza njengokuthi, angazi ngempela ukuthi ngingakhetha kanjani uhlobo olulungile lwe Isihlungi se-harmonics se-RF, noma ngifuna izinhlobo ezimbili ze izihlungi ze-harmonics kodwa ngino-50K$ kuphela wokuthenga, njll.

 

Ngokocwaningo olunzulu lokumaketha lwe Izihlungi ze-harmonics ze-FMUSER, sithole ukuthi ukudayiswa okuphezulu Izihlungi ze-harmonic ze-RF zinezici ezilandelayo ezifanayo:

 

1. Ukwenza Ngokwezifiso Isihlungi Nokwamukeleka kwe-OEM

 

Ukwenziwa ngendlela oyifisayo kanye nokwakheka kwesihlungi kukhombisa ubuhlakani bomkhiqizi wemishini yokusakaza kanye nokuba nokwenzeka kwempahla yokusakaza. Isihlungi esihle kakhulu se-harmonics ye-RF kufanele sibe nezici zenani lesabelomali, impilo ende yesevisi. Izihlungi ze-FMUSER 20kW FM ezinephasi eliphansi zisebenziseka kalula futhi zingabizi kakhulu kubaqhubi beziteshi zomsakazo.

 

2. Itholakala Okungenani I-PCS Design kanye Nesevisi Yangokwezifiso

 

Isevisi yokuklama nokwenza ngendlela oyifisayo inikezwa ubuncane obuncane besihlungi esingu-1 pcs. Ngenxa yokuthi ama-opharetha omsakazo ahlukene kudingeka abhekane nezidingo zangempela zeziteshi zomsakazo ezihlukahlukene, noma ngabe umphakeli wesihlungi se-RF angakwazi yini ukwenza ngokwezifiso ngokukhululekile futhi izihlungi zokuklama sezibe ngesinye sezindinganiso zokuhlola umthamo wokunikezela wabahlinzeki bokuhlunga. Okwenza i-FMUSER ivele ihluke kubahlinzeki abaningi bezihlungi kungenxa yokuthi izihlungi zabo ze-RF ziyenzeka ngokwezifiso, zisebenza kahle kakhulu, intengo yebhajethi, futhi kulula ukuzisebenzisa. Kungakhathaliseki ukuthi zingaki izihlungi ezisezingeni eliphezulu ofuna ukuzenza ngokwezifiso, i-FMUSER ingakusiza ngaso sonke isikhathi

 

3. Isihlungi se-RF Harmonics Umhlahlandlela Wokuthenga ovela ku-FMUSER

 

Ungayikhetha kanjani izihlungi eziphezulu ze-harmonics ze-RF phakathi kwabahlinzeki bemishini yomsakazo ngonyaka ka-2021 kube yinkinga ekhuthazayo kumakhasimende amaningi we-FMUSER amasha namadala.

 

Ngemuva kocwaningo lwethimba lethu lobuchwepheshe, sithole ukuthi amanye amapharamitha ochwepheshe angakwazi futhi ukukusiza ukuthi ukhethe, siphinde sizibandakanye nemidlalo, sinikezela ukukunikeza isihlungi sethu esihle kakhulu se-harmonics, ngakho-ke, uma udinga Izihlungi ze-harmonic ze-RF ziyathengiswa noma udinga noma yiluphi ulwazi mayelana nokwakamuva intengo yezihlungi ze-harmonic from FMUSER, ngicela ukwazi lokho SIYALALELA NJALO!  

 

  • I-Pim Ephansi Inamandla Izimpawu

 

Isibonelo, i-PIM (AKA: I-Passive Intermodulation), siyazi ukuthi i-PIM iwumphumela wamasiginali angenamsebenzi akhiqizwe ukuxutshwa kwamafrikhwensi amabili noma ngaphezulu kumadivayisi angenzi lutho angaqondile. Lawa masignali amasha azophazamisa futhi ahlanekezele amasignali okuqala asakazwa phakathi kwamasistimu angenantambo amabili. Ingakwazi ukukhiqiza ukuphazamiseka kwesignali kunoma iyiphi isistimu engenantambo. I-PIM ephansi isho ukuba nesignali eqinile enomkhawulokudonsa owengeziwe wabasebenzisi abaningi, okusho ukwaneliseka kwamakhasimende kanye nemali engenayo ephezulu yabasebenzisi.

 

  • Uzodinga Ukulahleka Kokufaka Okuphansi futhi Ubuyisele Ukulahlekelwa

 

Ukulahlekelwa kokufaka kanye nokulahlekelwa yimbuyiselo kudlala indima ebalulekile ekwakhiweni nasekuthuthukisweni kwamadivayisi anemvamisa ephezulu njengezihlungi ze-RF, izihlukanisi zamandla e-RF, nezikhulisi ze-RF. Kuyinto yemvelo eyenzeka kuzo zonke izinhlobo zokudlulisa (ukudluliswa kwedatha noma ukudluliswa kukagesi). Njengoba lokhu kuyiqiniso cishe kuyo yonke imigqa yokudlulisela ngokomzimba noma imizila ye-conductive, uma indlela ende, ukulahlekelwa kuyanda. Ngaphezu kwalokho, lokhu kulahlekelwa kuzokwenzeka futhi endaweni ngayinye yokuxhuma eduze komugqa, okuhlanganisa amalunga nezixhumi. Ngokuhlanganisa amaza aphezulu njengezihlungi ze-RF, lezo zihlungi ezinokulahlekelwa okuphansi kokufaka nezinye izindawo ezikhangayo zokuthengisa ngokuvamile zingaba ukukhetha kokuqala ku-opharetha bomsakazo.

 

  • Kukude kakhulu kunalokho okubonayo

 

Ngokusobala, kunezinkomba ezibalulekile ngaphezu kokulahlekelwa Kokufaka, amanye amapharamitha afana nenani lokunamathiselwe kanye nokubamba amandla aphezulu, njll futhi kuyizici ezibalulekile lapho kuthengwa isihlungi esihle se-harmonics se-RF. Uma ufuna ulwazi olwengeziwe lwamahhala mayelana nezihlungi ze-harmonics ze-RF, sicela uqiniseke ukuthi uthintana nethimba lethu lezobuchwepheshe, bangu-7/24 ku-inthanethi balindele izindaba zakho ezinhle. Nakhu okushiwo ithimba lezobuchwepheshe le-FMSUER:

 

  • Ukunciphisa ubukhulu besihlungi ngokuncintisana kwentengo Umkhiqizo ophelele wobubanzi befrikhwensi ye-microwave microwave, efana ne-Telecommunication system, IEEE 802.
  • Ukuzinza okuhle kakhulu kwezinga lokushisa
  • Ukubamba amandla aphezulu kanye nevelu yokuncishiswa okuhle kakhulu
  • Njll

 

Ngokucindezela I-Harmonics Yokudluliswa Kwesiteshi Se-FM: Izidlulisi ze-FM zivame ukukhiqiza ama-harmonics - ukuphindaphinda kwefrikhwensi yokudlulisela. Okunye kwalokhu kubangela ukuphazamiseka ekwamukelweni kwe-VHF-TV ne-UHF-TV nokupheja nokwamukela umsakazo weselula. Lolu chungechunge lwezihlungi zephasi eliphansi ludlula lonke ibhendi ye-FM ngokulahleka okuphansi futhi lunikeze ukucindezelwa okukhulu kwe-harmonic.

 

▲ Ungasikhetha Kanjani Isihlungi Esingcono Kakhulu se-FM Harmonics ▲

▲ Buyela Kokuqukethwe ▲

 

Amaqiniso Athakazelisayo kanye ne-Q&A mayelana nezihlungi ze-RF

 

Ingxenye Eyedlule yile Ungasikhetha Kanjani Isihlungi Esingcono Kakhulu se-FM Harmonics Yeqa

Buyela Engxenyeni Yokuqala Ungasithenga kuphi Isihlungi Esingcono Kakhulu se-FM Low Pass | Yeqa

 

Uma ufuna ukwazi okwengeziwe mayelana nesakhiwo sesifunda noma isabelo sokumaketha sesihlungi se-RF, i-FMUSER incoma ukuthi ufunde mayelana ne-passive electronics noma ubuze ithimba lethu labadayisi ngokuqondile, ngoba okuqukethwe okufundile akwanele ukukuchazela isihlungi se-RF ngokuphelele futhi ngokucacile kuwe. (PS: I-Wikipedia ingase ingakwazi ukukwenza). Ngakho-ke, Esingakwenzela khona ukukuchaza kalula nangokucacile ukwakheka nezinhlobo zezihlungi ze-RF, nokuthi izihlungi ze-RF zisebenza kanjani. Lapha, i-FMUSER yenza uhlu lwemibuzo ethokozisayo mayelana nezihlungi ze-RF ezaphakanyiswa amakhasimende esiteshi somsakazo wethu, kanye nezimpendulo zethu. Sicela uqhubeke nokufunda Uma ufuna ukwazi okwengeziwe ngezihlungi ze-RF. 

 

Q1: Izihlungi ze-RF Zisebenza Kanjani Ezinye Izindlela Ngaphandle Kwesiteshi Se-FM/TV?

 

Izihlungi ze-RF ziyizingxenye ezibalulekile kubuchwepheshe obungenawaya, izihlungi ze-RF zisetshenziswa nabamukeli bomsakazo ukuze kujabulise uhlobo olufanele lwamafrikhwensi kuyilapho kuhlunga amanye amabhendi angafunwa amaza. Izihlungi ze-RF zenziwe ngendlela yokuthi zingasebenza kalula kumafrikhwensi asukela kokuphakathi kuye kuye kophezulu kakhulu, okungukuthi i-megahertz negigahertz. Ngenxa yesici sayo sokusebenza, isetshenziswa kakhulu ezintweni ezinjengomsakazo wokusakaza, ukuxhumana okungenantambo, nomabonakude, njll.

 

Izihlungi ze-RF zingakwazi ukuhlunga umsindo noma zehlise ukuphazamiseka kwezimpawu zangaphandle ezingase zithinte ikhwalithi noma ukusebenza kwanoma yiluphi uhlelo lokuxhumana. Ukushoda kwezihlungi ezifanele ze-RF endaweni kungase kuphazamise ukudluliswa kwamafrikhwensi amasignali okungagcina kulimaza inqubo yokuxhumana.

 

Uma kunezihlungi ezifanele ze-RF, iziphazamiso zangaphandle kanye nokuphazamiseka kwesignali okukhiqizwa uhlelo lokuxhumana olungomakhelwane kungavinjwa kalula. Lokhu kulondoloza ikhwalithi yamafrikhwensi esignali adingekayo kuyilapho kuhlunga wonke amaza wamasignali angafunwa kalula.

 

Ngenxa yalokhu, izihlungi ze-RF zidlala indima ebalulekile ohlelweni lokuxhumana okungenazintambo, okungukuthi isathelayithi, irada, isistimu engenantambo yeselula, nokunye. 

 

Ngokuvamile, izihlungi azisindi futhi zingasiza ekuthuthukiseni ukusebenza kwamafrikhwensi esignali. Esimeni lapho izihlungi ze-RF zehluleka ukuhlinzeka ngokusebenza okulindelekile, ungahlola ezinye izinketho, enye yazo okuwukwengezwa kweamplifier ekwakhiweni kwakho. Kusukela ku-amplifier ye-Trellisware kuya kunoma yiziphi ezinye izikhulisamandla ze-RF, ungakwazi ukuguqula amaza amasignali aphansi abe phezulu; ngaleyo ndlela kukhuphule ukusebenza okuphelele kwemiklamo ye-RF.

 

Ngaphezu kwalokho, izihlungi ze-RF zidlala indima ebalulekile endaweni yomakhalekhukhwini. Uma kukhulunywa ngamaselula, adinga inani elithile lamabhendi ukuze asebenze kahle. Ngokuntuleka kwesihlungi esifanelekile se-RF, amabhendi ahlukahlukene ngeke avunyelwe ukuba abe khona kanyekanye okusho ukuthi amabhendi athile azonqatshwa, okungukuthi i-Global Navigation Satellite System (GNSS), ukuphepha komphakathi, i-Wi-Fi, nokuningi. Lapha, izihlungi ze-RF zidlala indima ebalulekile ngokuvumela wonke amabhendi ukuthi abe khona kanyekanye.

 

Ngenxa yentuthuko evuthiwe ye-R&D ye-FMUSER, sikubekela inqwaba yezihlungi ezahlukahlukene, sicela uqiniseke ukuthi uthintana nethimba lethu labadayisi uma ungaqiniseki ukuthi yiziphi ezihamba phambili esiteshini sakho sokusakaza, ithimba lethu labadayisi nezobuchwepheshe lizobe lilindile NGEZINDLEBE ZONKE.

 

Q2: Usenza Kanjani Isihlungi Se-RF?

 

Ngokuvamile, izihlungi ze-RF zakhiwe ama-resonator ahlanganisiwe futhi aklanywe ngezinto ezingenzi lutho ezisebenza njengama-capacitor, ama-inductors, kanye (kancane kancane) nama-RF transformer, angama-inductors ahlanganisiwe. Izihlungi zivame ukuba ngomugqa, futhi lapho kudingekile uhlobo oluthile lokukhulisa amandla zingahlanganiswa nezikhulisi ze-RF ezisetshenziswa ngama-RF transistors (okungaba yi-bipolar noma umphumela wenkundla). Izihlungi ziyadingeka uma kuziwa ekuhlungeni amasignali angafuneki ekungeneni ku-radio spectrum. Zisetshenziswa ngokuhlanganiswa nama-electronics ahlukahlukene. Nokho, ukusetshenziswa kwayo okubaluleke kakhulu kutholakala ngaphakathi kwesizinda samafrikhwensi omsakazo.

 

Ngesihlungi se-low pass, isekethe yaso evumela izingxenye zefrikhwensi yokudlula okuphansi kuphela futhi ivimbe zonke ezinye izingxenye zemvamisa ephezulu zibizwa ngokuthi isihlungi sokudlula okuphansi. Igama elithi LPF ngokwalo libonisa imvamisa yebanga eliphansi.

 

Ngokusekelwe ekusetshenzisweni nakusayizi wezinto ezisetshenziswayo ezingenazintambo, kunezinhlobo eziningi zokuhlunga, okungukuthi izihlungi ze-cavity, izihlungi ze-planar, izihlungi ze-electroacoustic, izihlungi ze-dielectric, izihlungi ze-coaxial (azihlobene nekhebula eli-coaxial), nokunye.

 

U-FMUSER ungumkhiqizi ochwepheshe we Izihlungi ze-harmonics ze-RF. Sinemithombo yolwazi esezingeni eliphezulu kakhulu yemishini yokusakaza kanye nethimba lezobuchwepheshe. Uma unemibuzo mayelana nezihlungi ze-RF ngesikhathi ufunda lesi sabelo, wamukelekile ukubuza ithimba lethu lezobuchwepheshe ukuze uthole ukwesekwa.

 

Q3: Zingaki Izinhlobo Zesihlungi Se-RF Ezikhona Futhi Ziyini Ngokuqondile?

 

Izihlungi ze-Radio Frequency ziwuhlobo olukhethekile lwesekhethi evumela amasignali alungile ukuthi adlule ngenkathi ekhansela amasignali angafuneki. Uma kukhulunywa nge-topology yesihlungi, kunezinhlobo ezine eziyisisekelo zesihlungi se-RF, okungukuthi; iphasi ephezulu; i-band-pass; kanye ne-band-reject (noma izihlungi ze-notch). Izihlungi ze-RF ezivame kakhulu zinesakhiwo sesitebhisi, futhi "indawo" yezingxenye (ama-inductors nama-capacitor) yilokho okuchaza uhlobo lwazo; amanani ezingxenye achaza ububanzi befrikhwensi yesignali abavimbile noma abangayivimbi.

 

  • Isihlungi se-Lowpass - Isihlungi se-Lowpass - LPF

 

Isihlungi sokudlula okuphansi yisona esivumela kuphela amaza aphansi ukuthi adlule ngesikhathi esifanayo, sinciphisa yonke enye imvamisa yesignali. Inani lokunciphisa imvamisa yesignali lapho idlula ku-bandpass inqunywa izici eziningi ezifana ne-topology yesihlungi, isakhiwo, nekhwalithi yezingxenye, njll. Ngaphezu kwalokho, i-topology yesihlungi iphinde inqume ukuthi isihlungi sizoshintsha ngokushesha kangakanani i-passband ukuze ithole ukwenqatshwa kwayo kokugcina.

 

 

I-LPF 

Izihlungi zokudlula okuphansi ziza ngezinhlobo ezahlukene ezahlukene. Ukusetshenziswa okuyinhloko kwalesi sihlungi ukucindezelwa kokuvumelana kwe-RF amplifier. Lesi sici sibalulekile njengoba sisiza ekuvimbeleni ukuphazamiseka okungafuneki uma kukhulunywa ngamabhande okudlulisela ahlukahlukene. Ikakhulukazi, izihlungi zokudlula okuphansi zisetshenziswa ezinhlelweni zomsindo futhi zihlunga imisindo kunoma iyiphi isekethe yangaphandle. Ngemva kokuba amasignali amaza aphezulu esehlungiwe, amaza omphumela wesignali athola ikhwalithi ehlanzekile necacile.

 

  • Isihlungi se-High Pass - Isihlungi se-Highpass - HPF

 

Ngokuphambene nesihlungi se-low pass, isihlungi se-high pass (HPF) sivumela kuphela isignali ye-high-frequency ukuthi idlule. Eqinisweni, izihlungi zokudlula okuphezulu ziyahambisana kakhulu nezihlungi zokudlula okuphansi njengoba zombili zingasetshenziswa ngokuhlanganyela ukukhiqiza isihlungi se-bandpass. Idizayini yesihlungi sokudlula okuphezulu iqondile futhi inciphisa amaza aphansi kune-threshold point.

 

 

I-HPF 

Ngokuvamile, izihlungi zokudlula okuphezulu zisetshenziswa ezinhlelweni zomsindo lapho wonke amaza aphansi ahlungwa khona. Ngaphezu kwalokho, isetshenziselwa ukususa ama-bass kuzikhulumi ezincane, futhi ezimweni eziningi; lezi zihlungi zakhelwe ezipikheni. Kodwa-ke, uma kuziwa kunoma iyiphi iphrojekthi ye-DIY, izihlungi zokudlula okuphezulu zingafakwa kalula ohlelweni.

 

  • Isihlungi se-Band Pass - Isihlungi se-Bandpass - BPF

 

Isihlungi se-bandpass (BPF) isekethe evumela amasiginali asuka kumafrikhwensi amabili ahlukene ukuthi adlule futhi inciphise amasiginali angangeni phakathi kwebanga lawo lokwamukela. Izihlungi eziningi ze-bandpass zincike kunoma yimuphi umthombo wamandla wangaphandle futhi zisebenzisa izingxenye ezisebenzayo, okungukuthi amasekhethi ahlanganisiwe nama-transistors. Izinhlobo ezinjalo zokuhlunga zibizwa ngokuthi izihlungi ze-bandpass ezisebenzayo. Ngakolunye uhlangothi, ezinye izihlungi zokudlula ibhendi azisebenzisi umthombo wamandla wangaphandle futhi zithembele kakhulu ezingxenyeni ezingenzi lutho, okungukuthi ama-inductors nama-capacitor. Lezi zihlungi zaziwa njengezihlungi ze-bandpass passive.

 

 

Izihlungi ze-band pass zivame ukusetshenziswa kuma-wireware nama-transmitters. Umsebenzi wayo oyinhloko kusidlulisi ukukhawulela umkhawulokudonsa wesiginali yokuphumayo ube ubuncane ukuze idatha edingekayo idluliselwe ngesivinini nangefomu oyifunayo. Uma kuziwa kumamukeli, isihlungi sokudlula ibhendi sivumela kuphela inani elifiselekayo lamafrikhwensi ukuthi aqoshwe noma azwakale, kuyilapho kusikwa amanye amasiginali aphuma kumaza angafuneki.

 

I-BPF

 

Sekukonke, lapho isihlungi se-bandpass siklanywe kahle, singakwazi ukukhulisa kalula ikhwalithi yezimpawu, kuyilapho ngesikhathi esifanayo, singanciphisa ukuncintisana noma ukuphazamiseka phakathi kwamasignali.

 

  • Isihlungi Senqaba Yebhendi - Isihlungi Sokumisa Ibhendi - Yenqaba Isihlungi - BSF

 

Kwesinye isikhathi kwaziwa ngokuthi isihlungi sokumisa ibhande (BSF), ukwenqatshwa kwebhendi yisihlungi esivumela amafrikhwensi amaningi ukuthi adlule angashintshiwe. Nokho, inciphisa amaza anjalo awela ngaphansi kobubanzi obucaciswe kakhulu. Isebenza ncamashi ngendlela ephambene naleyo yesihlungi se-bandpass.

 

 

Ngokuyisisekelo, umsebenzi wayo ukudlula kumafrikhwensi ukusuka kuqanda ukuya endaweni yokuqala yokunqamula imvamisa. Phakathi nendawo, idlula wonke amafrikhwensi angaphezulu kwendawo yokunqamula yesibili yefrikhwensi. Nokho, yenqaba noma ivimbe wonke amanye amafrikhwensi aphakathi kwalawa maphuzu amabili.

 

BSF 

Sekukonke, isihlungi siyinto evumela amasiginali ukuthi adlule ngosizo lwe-passband. Sesikushilo lokho, ibhande lokumisa kusihlungi indawo lapho amafrikhwensi athile enqatshwa yinoma yisiphi isihlungi. Kungaba iphasi ephezulu, iphasi eliphansi, noma i-bandpass, isihlungi esifanelekile yileso esingabonisi ukulahlekelwa kubhendi yokungena. Kodwa-ke, empeleni, ayikho into efana nesihlungi esihle njengoba i-bandpass izolahlekelwa imvamisa futhi akwenzeki ukuthola ukwenqatshwa okungapheli uma kukhulunywa ngokumiswa.

 

▲ Amaqiniso Athakazelisayo Ngezihlungi ze-RF ▲

▲ Buyela Kokuqukethwe ▲

 

  1. Okufanele ukwazi Ngesihlungi se-Low Pass esingu-20kW FM
  2. Inkomba kagesi yesihlungi se-FMUSER 20kW Low Pass (Inkomba Kuphela)
  3. Ukwabelana Okungeziwe Ngokuphazamiseka Kwerediyo

 
Okufanele ukwazi Ngesihlungi se-Low Pass esingu-20kW FM

 

Isiqephu Esilandelayo sithi Inkomba kagesi yesihlungi se-FMUSER 20kW Low Pass Yeqa

 

Hawu, kunezinto eziningi kakhulu okudingeka uzinake! Kodwa-ke, njengomsebenzi wesiteshi somsakazo, ngokuqinisekile wazi okungaphezu kokwazi kwe-FMUSER, kodwa lapha, ukuze uvikele futhi usebenzise imishini yesiteshi sakho somsakazo, i-FMUSER isadinga ukukuthumelela iziphakamiso ezintathu, ngemva kokuthenga lesi sihlungi sokudlula esiphansi esingu-20kW FM. , izinto ezintathu okudingeka uzazi: ukusebenza, ukufakwa, ne-cable TV.

 

1. Ukusebenza Kwesihlungi se-RF

 

Lesi sihlungi sokudlula okuphansi siklanyelwe ukunciphisa futhi ezimweni eziningi sisuse ukuphazamiseka kukamabonakude okubangelwa amandla e-harmonic adalwe phakathi kwama-transmitters e-FM.

 

Isihlungi sinezinhlangothi ezimbili okusho ukuthi singafakwa kunoma iyiphi indlela. Imodeli yesihlungi yesidluliseli esingu-20kW FM ibonisa ukuncishiswa kwamaza angaphezu kuka-140 MHz njengoba kukhonjisiwe kwijika lokuphendula elingezansi.

 

 

ISAZISO: Isignali yokufaka yesihlungi esingu-20kW AKUMELE idlule ama-watts angu-20000. Ukusetshenziswa ngamandla aphezulu kungalimaza unomphela isihlungi futhi kuzovala iwaranti.

 

2. Ukufakwa kwesihlungi se-RF

 

  • Isihlungi kufanele sifakwe eduze nokuphumayo kwesidlulisi njengoba sisebenza 
  • Kusetshenziswa izixhumi ezingu-3 1/8" ze-EIA ezinezixhumi zabesilisa kuzo zombili iziphetho.

 

Ukuqapha: ISIHLUNGI INGASE SISHISE NGESIKHATHI SOKUSEBENZA, lokhu kuyinkomba yokuthi senza umsebenzi waso ngokuhlakaza amandla e-harmonic ngendlela yokushisa.

 

3. Isikhalazo esivela kumabonakude wekhebula lendawo yangakini

 

Uma i-transmitter yakho iphazamisa isistimu ye-TV yekhebula inkinga ingase ingaxazululeki ngokusebenzisa isihlungi sokudlula okuphansi. Ezinye izinkampani zamakhebula ezingaziphathi iziteshi ze-FM ohlelweni lwazo zingabeka iziteshi ze-TV ebhendi yokusakaza ye-FM. Uma kunjalo, imvamisa yakho eyisisekelo (inkampani yenethiwekhi) ingahle ibangele ukuphazamiseka futhi isihlungi ngeke sisebenze. Xhumana nenkampani yangakini yamakhebula ukuze uthole ulwazi olwengeziwe. Kwezinye izimo, inkampani yekhebula ingaxazulula inkinga ngokufaka esikhundleni ikhebula elidala noma eligugile.

 

Inkomba kagesi yesihlungi se-FMUSER 20kW Low Pass (Inkomba Kuphela)

 

  • Izinto ezingcono kakhulu zethusi nesiliva-plated zethusi, isipiliyoni somsebenzisi sithenjisiwe
  • Ubude obuncishisiwe
  • Ukusabalala kwebhendi ye-FM yonke
  • Izithandani Ezakhelwe Ngaphakathi Ezimangelengele Ziyatholakala
  • Ukulahleka Kokufaka Okuphansi Kakhulu kanye ne-VSWR
  • Amafrikhwensi ahlukene ayatholakala ukuze akhethwe, okuthuthukisa ikhono lokusakaza
  • Amaleveli wamandla ahlukene ahlangabezana ngokugcwele nezidingo zezimo eziningi
  • Izinga elihamba phambili embonini lokulahleka kokufakwa okuphansi kanye ne-VSWR ithuthukisa ikhwalithi yokusakaza esiteshini sokusakaza
  • Ukuncishiswa okuphezulu ku-harmonic yesi-2 neyesi-3, asikho isidingo sokukhathazeka mayelana nokuphumayo
  • Isho okufunayo, siyasiza ngokwenza ngendlela oyifisayo.
  • Ukwenqatshwa Okuphezulu nge-10th Harmonic
  • Njll

 

imodeli

A

B

Ukucushwa

Coaxial

Coaxial

imvamisa Range

87 - 108MHz

167 - 223MHz

I-Max. Amandla wokufaka

20 kW

10 kW

I-VSWR

≤ 1.1

≤ 1.1

Ukufelwa kokufakiwe

≤ 0.1 dB

≤ 0.1 dB

Ukulinda

2 i-harmonic

≥35 dB

≥35 dB

2 i-harmonic

≥60 dB

≥60 dB

Izixhumanisi

3 1 / 8 "

3 1 / 8 "

Inombolo Yezici

7

7

Ubukhulu

85 × 95 × 965 mm

85 × 95 × 495 mm

Isisindo

~ 8kg

~ 4.4kg

 

1. Izimbangela zokukhishwa kwe-harmonic kanye namanga

 

  • Isidluliseli somsakazo esiyimfundamakhwela esingasebenzi kahle singase sibe yimbangela yokuhambisana kwamandla aphezulu. Kuzophinde kuphazamise ukudluliswa komsakazo kwezinye izinto eziseduze.
  • Ama-amplifiers nawo akhiqiza ama-harmonics. Njengoba sonke sazi, bazohlanekezela i-waveform yesiginali, noma abawona umugqa ngokwezinga elithile. Isakhiwo sesiteshi somsakazo esingesihle sizokhuphula amazinga e-harmonic. Ngakho-ke, unganciphisa ukuphazamiseka ngokumane wamukele umklamo omuhle wesikhulumi.
  • Ngisho noma idivayisi ingadluliseli ngokusebenzayo, izokhiqiza ukukhishwa okungamanga. Lokhu kungase kube ngenxa yamasignali anesivinini esikhulu, amandla anomsindo anomsindo, noma ezinye izinkinga zesignali. Uma idivayisi isakaza ngokuqhubekayo, ukukhishwa okungamanga kungase kwenzeke ngenxa yezizathu ezimbili:
  • Intambo yamandla exhunywe kumsakazo iqukethe umsindo wefrikhwensi ephezulu. Ibangela isikhulisamandla somsakazo ukuthi sikhiqize amaza athile.
  • Ezinye izingxenye ze-PCB zithatha imvamisa eyisisekelo.

 

ISAZISO: Ukudluliswa okuyinkohliso kungenzeka uma isidlulisi sidlulisa ngokungalungile ngaphandle komkhawulokudonsa olungile noma imodi esetshenzisiwe. Kulokhu, isidluliseli sikhiqiza i-splash, engaphazamisa ezinye iziteshi ezishuniswe kumaza eduze kwebhendi yefrikhwensi.

 

2. Ungawunciphisa Kanjani Umthelela We-Harmonics kanye Nokukhishwa Okumangazayo?

 

Izinyathelo ezilandelayo zingathathwa ukulawula izinga lokuphazamiseka:

 

  • Hlola isidlulisi ukuze unciphise ukukhishwa okungamanga kwe-off-frequency.
  • Qinisekisa ukuthi izinto ezisetshenziswayo ezinomsindo nezihlanganisayo zikude nothi.
  • Gwema ukusebenzisa izithutha zomsakazo ezingasebenzi kahle.

 

ISAZISO: Ukukhishwa kwe-Harmonic kanye namaphutha akunakugwenywa kodwa kungancishiswa ngezinga elithile. Noma iyiphi isignali ye-harmonic ngaphandle kwesiteshi esimisiwe sesithumeli sithathwa njengokudluliswa okungamanga. Ngokuvamile ziwumphumela wemishini engasebenzi kahle noma ukuphazamiseka kwemvelo.

 

Ukwabelana Okungeziwe Ngokuphazamiseka Kwerediyo

 

Okulandelayo ukwabelana ngolwazi lomsakazo olwengeziwe ngokuthi kuyini ukuphazamiseka komsakazo nokuthi ungawunciphisa kanjani umthelela wokuphazamiseka komsakazo. Sikholelwa ukuthi kuke kwaba khona ulwazi olwanele ngezihlungi ze-RF, kodwa ezinye izinkinga zokudlulisa amasignali omsakazo kanye nokwamukela zisekhona empilweni yangempela. Amakhasimende amaningi endimeni yomsakazo akhwifa amathe kabuhlungu ngokuphazamiseka komsakazo futhi asicela ukuba siwakhele izixazululo ezikhethekile. Ngakho-ke, sizochaza kafushane ulwazi oluthile olusebenzayo mayelana nokuphazamiseka komsakazo emakhulwini asele asele

 

1. Hlobo Luni Lwezisetshenziswa Olungathinteka Ngokuphazanyiswa Komsakazo?

 

Kokubili izinsiza zomsakazo nezingezona ezomsakazo zingathinteka kabi amasignali omsakazo. Imishini yomsakazo ihlanganisa imisakazo ye-AM neye-FM, omabonakude, amafoni angenazintambo, nama-intercom angenawaya. Izinto zikagesi ezingezona ezomsakazo zihlanganisa amasistimu omsindo we-stereo, izingcingo ezinezintambo, nama-intercom ajwayelekile anezintambo. Yonke le mishini ingaphazanyiswa amasignali omsakazo.

 

2. Yini Engabangela Ukuphazanyiswa Komsakazo?

 

Ukuphazamiseka kuvame ukwenzeka lapho izithutha zomsakazo nezinto zikagesi zisebenza endaweni eseduze. Ukugxambukela kudalwa:

  • Izinto ezisetshenziswa ngokungalungile zokudlulisa umsakazo;
  • Isignali yomsakazo enamandla evela kumthumeli oseduze;
  • Izimpawu ezingafuneki (ezibizwa ngokuthi imisebe engamanga) ekhiqizwa imishini yokudlulisela; futhi
  • Akukho ukuvikela okwanele noma ukuhlunga okokusebenza kwe-elekthronikhi ukuyivimbela ekuthatheni amasignali angafuneki.

 

3. Yini Ongayenza?

 

  1. Zama ukuvimbela izinkinga zokugxambukela ngaphambi kokuba zenzeke. Xhumana neziphathimandla zikamasipala ukuze uthole ukuthi yimiphi imithethonqubo esebenza ezintini nezakhiwo zombhoshongo. Uma unohlelo lokufaka oluhlangabezana nezidingo zikamasipala, khuluma nomakhelwane bakho. Chaza ukuthi yini ofuna ukuyenza nokuthi kungani. Baqinisekise ukuthi uzokwenza konke okusemandleni akho ukuvimbela noma yiziphi izinkinga. Bakhumbuze ukuthi i-GRS kanye nabaqhubi bemisakazo abayimfundamakhwela bavame ukwenza isevisi yomphakathi ebalulekile ngokusiza iziphathimandla zendawo ngezikhathi eziphuthumayo nezehlakalo ezinkulu zomphakathi.
  2. Qiniseka ukuthi okokusebenza kwakho kufakwe ngendlela efanele. I-antenna yesiteshi somsakazo kufanele ibe kude nezindlu ezingomakhelwane futhi ibe kude nezintambo zikagesi okungase kube nomthelela ekusebenzeni kwayo. Funda ngokucophelela isigaba, Ukufaka Isiteshi Sakho Somsakazo.
  3. Sebenzisa isiteshi sakho ngomakhelwane bakho engqondweni. Nciphisa amandla esithumeli, lapho kunokwenzeka, ezingeni elincane elidingekayo ukuze kube nokuxhumana okwanele. Eziteshini ze-GRS lapho ukudlulisa, izikhulisamandla zingavunyelwe, umkhawulo ophumayo oya othingo akufanele ube ngaphezu kwama-watts angu-4 (ibhendi eseceleni eyodwa; isiqongo samawatts angu-12).
  4. Qinisekisa ukuthi okokusebenza kwakho kugcinwa kusesimweni esihle ngokwezidingo zabo zobuchwepheshe. Ngezikhathi ezithile, kufanele uqinisekise ukuthi imvamisa yokudlulisela ilungile, umkhawulokudonsa ungaphakathi kwemikhawulo yokusebenza, futhi izintambo zesiteshi, izinti, nohlelo lwaphansi kusesimweni esihle.

 

4. Kufanele Futhi:

 

  • Yiba nozwelo ezinkingeni zokuphazamiseka bese uzama ukuzixazulula ngokushesha ngangokunokwenzeka.
  • Sebenza nomakhelwane bakho ukuze uthole ukuthi yini edala inkinga nokuthi yini eyenza ibe ngcono.
  • Ngenkathi uzama ukuthola isixazululo sezobuchwepheshe sokuphazamiseka, khawula amandla akho okuthumela nezikhathi zokusebenza. Cabangela ukuvala isiteshi sakho ngokuphelele kuze kube yilapho inkinga isilungisiwe.
  • Zizwe Ukhululekile ukusibuza uma ubhekene nezinkinga eziningi

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