Engeri y’okulondamu n’engeri y’okukebera ekyuma ekikyusa satellite

Converter kye kitundu ekisinga obukulu mu satellite television , omutindo gwa signal gusinziira ku yo, ye frequency ne polarization converter era esobola okukwata frequency ez’enjawulo. Mu kitundu kino tugenda kwogera ku makulu gaakyo n’engeri y’okukilondamu, by’osaanidde okussaayo omwoyo.

Setilayiti converter kye ki era kikola ki

Ekintu ekikyusa setilayiti kiwa okusembeza kwa siginiini eyeeyolekera okuva kungulu ku antenna n’eweebwa mu ngeri egaziyiziddwa okutuuka ku tuner ya ttivvi ya setilayiti. Eno nkola nzibu ennyo erimu amateeka agasookerwako aga fizikisi. Osobola okugula converter ng’eno ku bbeeyi ensaamusaamu.

Ekikulu ekiraga ekikyusakyusa ye maloboozi ag’enjawulo, agapimibwa mu decibels. Bwe wabaawo amaloboozi matono, ekifaananyi ku ttivvi tekikyusibwakyusibwa nnyo.

Mu ssaayansi, ekikyusa (converters) kitegeezebwa nga ekintu ekikwata (receiver) ekikola ku siginiini ya setilayiti. Mu butuufu, waliwo ebyuma bibiri mu bulooka emu eya monolithic. Ekyuma ekisooka kigaziya siginiini efunibwa okuva ku setilayiti. Wano omutendera gw’amaloboozi ag’okwongerako we gukola omulimu omukulu. Ku miwendo egya wansi, wajja kubaawo okutaataaganyizibwa okutono ennyo, – 0.3 – 0.5 dB.

Erinnya LNB oba low noise block nalyo likwatagana n’ekikyusa satellite.

Ekyuma ekyokubiri kikyusa firikwensi z’amayengo. Nga bayambibwako, siginiini eweerezeddwa ku lisiiva oba ttivvi ng’eyita ewala. Offset satellite dish y’esinga obulungi mu kutambuza siginiini. Wano waliwo ennyonyola enkulu ku ngeri byonna gye bikolamu:
Ekikyusa kifuula siginiini efunibwa okuba ey’amaanyi. Kino kiyamba okusasula okufiirwa mu waya eyunga antenna ku lisiiva. Receiver eyongera amaloboozi gaayo ku signal. Zirina amaanyi agataggwaawo. Siginini ya setilayiti okuva ku antenna yokka si ya maanyi, kale enafuwa munda mu waya, n’olwekyo yeetaaga okugaziwa. Wabula ekyuma kino kiyingiza amaloboozi gaakyo mu siginiini, n’olwekyo kikulu okuba nga ntono. Converter eno osobola okugigula okuva mu bika eby’enjawulo.

Ekikyusa kifuula siginiini efunibwa okuba ey’amaanyi. Kino kiyamba okusasula okufiirwa mu waya eyunga antenna ku lisiiva. Receiver eyongera amaloboozi gaayo ku signal. Zirina amaanyi agataggwaawo. Siginini ya setilayiti okuva ku antenna yokka si ya maanyi, kale enafuwa munda mu waya, n’olwekyo yeetaaga okugaziwa. Wabula ekyuma kino kiyingiza amaloboozi gaakyo mu siginiini, n’olwekyo kikulu okuba nga ntono. Converter eno osobola okugigula okuva mu bika eby’enjawulo.

Kyetaagisa okuzuula mu bbandi ki, “Ku” oba “C”, gy’ekozesebwa. Enjawulo ennene wakati w’ebyuma bino eri mu nkola yaabyo mu frequency ranges ez’enjawulo. Ekikyusa frequency kikola mu mbeera z’obudde ez’enjawulo.

Omusingi gw’enkola y’ekikyusa setilayiti

Ekikyusa amayengo kikung’aanya amayengo, ne gagakyusa mu bubonero obusibuka mu masannyalaze, obutambuza siginiini eri oyo afuna. Ekikyusa LNB kiteekebwa ku kifo we antenna, amayengo we gatunuulirwa. Siginini eyongezebwa mu kikyusa, n’ekyusibwa okudda ku firikwensi eya wansi. Okukyusa siginiini okuva ku C oba Ki okudda ku L-band, weetaaga oscillator ey’omu kitundu ekola siginiini ya leediyo. Omutabula ayamba okufuna siginiini ey’okusatu, nga eno y’enjawulo y’ebiri ezisooka. N’ekyavaamu, kizuuka.
Mu kika kya Ki, mu ngeri ey’ekikontana, frequency ya local oscillator ebalwa okuva ku frequency ya signal efunibwa okuva ku satellite. Waliwo n’ekintu ekirala. Tosobola kukyusa Ki-band yonna ku L-band. Oba converter erina oscillator emu eya local era tebikka Ki-band yonna, oba signal ya satellite egenda mu L-band ekitundu kyokka, wansi oba waggulu wa range yeenyigiddemu. Ekika ekyokubiri ekya converters is universal , kirina 2 local oscillators, ekyokubiri ku byo kibikka waggulu ku Ku range. Ranges zikyusibwa nga bakozesa ekisumuluzo eky’ebyuma ekifugibwa siginiini ey’enjawulo. Munda mu converter mulimu ekizimbe ky’ekyuma. Okujjuza ekyuma kino kukwekebwa mu kkeesi y’ekyuma, nga muno kiyingizibwa ekifulumizibwa ekya F-connector. Ekikyusa asobola okuba n’omuwendo ogw’enjawulo ogw’ebifulumizibwa. Oluusi omuwendo gutuuka ku munaana.

Engeri y’okukebera converter oba ekola

Kyangu nnyo okukebera converter oba serviceability. Bw’oba ​​olina obuzibu ku ngeri ttivvi gy’elabamu siginiini, olina okulaba oba ddala ensonga eri mu converter. Okusooka olina okukebera cable okuva ku receiver okutuuka ku antenna n’amaaso, singa eba ekutuse wonna. Singa cable eba nga tefudde, olina okukebera omutwe gwa dish, olwo contacts ne waya, waliwo eky’okulonda eky’angu, kwe kugamba, okukyusa omutwe guno olabe oba signal ekyuse. Olwo osobola okutegeera oba ekivaako obuzibu kiri mu converter emenyese oba mu node endala. Engeri y’okulondamu omutwe gwa satellite n’okukebera ekyuma ekikyusa satellite dish oba kikola bulungi, satellite dish converters nga zirina ebifulumizibwa bibiri, bisatu n’ebina: https://youtu.be/s6IW8HPgTEE

Engeri y’okulondamu LNB, kiki ky’onoonya

Noise figure ye parameter enkulu mu kulonda converter. Kikulu okulowoozaako nga olondawo frequency range, phase noise, current ekozesebwa, polarity. Ebitundu ebisinga obukulu ye noise figure ne gain. Mu ngeri ennungi, omuwendo gw’amaloboozi gulina okulagibwa ku bipapula. Bwe kiba tekiragiddwa, togula kyuma. Mu kiseera kye kimu, ne bwe kiba omugerageranyo omutono tekikakasa nti ekikyusa kijja kuba kya mutindo gwa waggulu. Parameter eno ekeberebwa mu laboratory yokka. N’olwekyo, kirungi okugula ebyuma mu bifo ebyo byokka ebikebereddwa era nga bisobodde okwewa akawunti ennungi. Ekintu ekikyusa abantu bonna osobola okukigula ku buseere ku yintaneeti ne mu maduuka agatunda ebitundu bya leediyo. Eno y’enkola esinga obulungi. Engeri y’okulondamu ekyuma ekikyusa satellite: https://youtu.be/nP7UpiEubro

Ebikozesebwa Ebitongole

Converter ya satellite dish okuva mu Tricolor yettanirwa nnyo olw’okwesigamizibwa kwayo, era ng’oggyeeko ekyo, osobola okugigula ku bbeeyi ensaamusaamu. Tegenda kuba ya bbeeyi, wabula egenda kuwa bannannyini nnyumba siginiini ey’omutindo ogwa waggulu.
Omutwe gwa satellite okuva mu Tricolor [/ caption] Ttivvi ya satellite eya ALYNO erina ekikyusa C + Ku ekigatta nga kyesigamiziddwa ku bikyusa bibiri. Kirina ekifulumizibwa ekyesigama “Ferret direct focus Twin-Twin”, ekiwa okusembeza kwa siginiini okutambula buli kiseera mu bbanga bbiri omulundi gumu: C ne Ku. Ekola wamu yokka ne passive multiswitch 4/2. Ekoleddwa ku antenna za offset. Enkoofiira za polyethylene. General Satellite GSLF-51E converter nga erina obuwanvu bw’amayengo: mm 40 (omutindo); connector type: 75 F-type nayo yettanirwa nnyo abawandiise. Ekikyusa Galaxy Innovations GI-301 kikyusa polarization ekyekulungirivu. Kyangu nnyo okukozesa mu bulamu obwa bulijjo.

Dizayini n’okugiteeka ku antenna

Amayengo ga leediyo ag’amasannyalaze gagwa ku ndabirwamu. Okuva enkula yaayo bwe erina enkula y’enkulungo, akabonero, akagwa ku kitundu ky’endabirwamu, yeeyolekera mu ludda lumu lwokka, ekitangaala kikolebwa ekitunuuliddwa mu kifo kimu. Ekyuma ekyetaagisa kiteekebwa mu “focus” – ekikyusa setilayiti yennyini. Ekikondo kino kimugwako. Ebintu ebikulu ebikyusa amayengo bye biwujjo (irradiator), ekiyungo ky’amayengo (waveguide) siginiini mw’eyita, ekintu eky’obusannyalazo ekikyusa amayengo okufuuka pulses. Ekikyusakyusa kikyusa frequency, polarization, kiwa signal ey’omutindo ogwa waggulu. Ekoleddwa okulaba ttivvi ku mutindo ogwa waggulu.

Ensobi nga olonda n’okussaako, engeri y’okuzeewala

Omutindo gw’omusango gutera okulondebwa mu ngeri etasaana. Ekifo we bakolera – oluguudo. Mu kiseera ky’okukozesa, ekyuma kino kikosebwa enkyukakyuka mu bbugumu. N’olwekyo, omubiri gw’ekyuma gulina okuba ogw’omutindo ogwa waggulu. Ekibikka omusana ekiggyibwamu kirina okuba nga kigumira emisinde. N’olwekyo, olina okuddamu okulonda ebintu eby’omutindo ogwa waggulu.

Mugaso! Singa ekyuma kino kikendeezezza puleesa yonna, obunnyogovu bw’empewo bujja kutuukayo, ekijja okuvaako okumenya.

Langi y’omubiri tesaana kuba ya maanyi, bwe kitaba ekyo ejja kusikiriza ebinyonyi ebijja okukoona ku buveera obumasamasa.
Nga tonnaba kuteekawo, kikulu okulaba engeri ekyuma gye kisobola okukola.

Mugaso! Ekyuma ekikola kiraga siginiini ne bwe kiba nti antenna tetuukiddwa ku setilayiti .

Ebibuuzo n’eby’okuddamu

Omukyusa oba Omukyusa? Ekyo kituufu: ekikyusa, era mu muwendo gwonna. Kino kituukana n’amateeka g’olulimi Olurussia n’ennimi engwira. Converter ki esaanira okufuna MTS TV ? Eky’okuddamu: okubeera n’ensengekera ya Ku-band ey’ennyiriri (linear Ku-band polarization). Kijja kukola bulungi. Ku bbeeyi ki gy’osobola okugula ekyuma ekikyusa satellite? Ekyuma kino osobola okukigula ku bbeeyi ya rubles 350. Converter kye kimu ku bitundu ebikulu ku ttivvi ya satellite. Kikyusa frequency, kikyusa polarization. N’olwekyo kikulu okugula omutwe omutuufu, ogulina amaloboozi amatono ate nga gusaanira ku bbanga eritali limu. Kale, converter erina okulondebwa n’obwegendereza ennyo.