Ndeipi satellite dish tambo yekusarudza uye kuti ungaitarisa sei usati watenga

Satellite TV inogona kusvika kumakona akavanzika epasi, uko pasina vanopa vanopa uye shongwe dzekutepfenyura. Aripo compact masisitimu anoiswa chero nguva. Satellite dish ichapa mufananidzo wakajeka uye wakajeka. Kugashira kwakavimbika kunoenderana nezvirongwa uye tekinoroji michina. Iyo tambo ye “ndiro” inokwanisa kuvandudza nekuchengetedza zviratidziro zvemhando, uye kudzikisa kugona kana sarudzo isiriyo yaitwa.

Satellite dish cable device

Chii chinangwa chetambo yeterevhizheni yesatellite dish:

• kuunza chiratidzo kubva kune antenna kuTV nekurasikirwa kudiki;
• kudzivirira kubva kunze kwekukanganiswa kwemagetsi;
• chengetedza kushanda pasi pemichina mitoro, mumamiriro ekunze akaoma.

Iyo coaxial tambo inobata nemabasa. Inokodzera kutepfenyura (kugamuchira kuburikidza neTV tower kana indoor antenna) uye setiraiti. Nokudaro, hapana misiyano mukugadzira. Zvinhu zvakasiyana chete zvinoshandiswa.

1. Conductive core (center wire). Yakagadzirwa yakazara kana mhango. Izvo zvinhu ndeyemhangura, aluminium, simbi uye sirivha-plated alloys.
2. Insulation (mukati). Dielectric.
3. Sikirini (aluminium foil). Inodzivirira kubva kunze kwemagetsi kukanganiswa.
4. Copper braid. Zvimwe zvekudzivirira zvimiro.
5. Outer shell. Dziviriro kubva kumagetsi kukanganisa uye zvinhu zvakasikwa.

Hunhu hunhu hwecoaxial tambo yesatellite dish

Semugadziri wechiratidzo chemagetsi, chigadzirwa chinopihwa tekinoroji uye yemuviri maficha.

Pakati waya dhayamita

Mitemo yeinjiniya yemagetsi inotaura kuti kuchinjanisa ikozvino kunonyanya kupararira pamusoro peiyo conductor. Iyo diki inogoneka iri pedyo nepakati. Naizvozvo, iyo yakakora iyo conductive musimboti, iyo shoma attenuation inokanganisa huwandu. Yakajairwa dhayamita yewaya yepakati kune antenna yeterevhizheni: 0.5-1 mm. Kune “plate” unoda kanenge 1 mm.

Wave impedance

Chiyero chechiyero chinonzi Ohms (Ohm). Kune terevhizheni uye satellite antennas, kukosha kwe75 ohms kunoshandiswa. Iyi ndiyo impedance yekupinza yekubatanidza iyo tambo yakabatana. Kusaenderana kwenhamba kuchaita kuti kuderera kwezvinogoneka. Mukushayikwa kwekupikisa kwetambo kwakaenzana, zvinokwanisika kushamwaridzana nemhando dzakasiyana-siyana pamusoro pezvinhambwe zvishoma. Somuenzaniso, muimba yega.

Nheyo yekushanda kwe coax

Inobva pakuonekwa kwe electromagnetic wave mukati metambo. Madhayamita epakati pepakati uye skrini inosarudzwa nenzira yekuti kurasikirwa kwechiratidzo kunoderedzwa. Iyo braid haibvumire munda kuti uende kupfuura waya, ichigadzira senge ye waveguide.

Chii chekutarisa pakusarudza tambo yekubatanidza satellite dish kuTV

Satellite dish mudziyo wekunze. Chikamu chetambo yetambo yakaiswa munzvimbo yakazaruka. Zvinhu zvakakosha zvekusarudzwa kwekoax.

Outer shell zvinhu

A polyethylene base inokurudzirwa, iyo isinganyanyi kutarisana nezvinhu zvakaoma: mamiriro okunze akaipa, kushanduka kwekushisa. Iyo bhajeti vhezheni yePVC (polyvinyl chloride) haizokuponesi kubva pakuonekwa kwekutsemuka muchando, izvo zvinoparadza kuvharirwa. Zvadaro, hunyoro hunopinda mukati, huchikonzera pfupi pfupi. Equipment malfunctions zvichaitika. Vagadziri vanopa coaxes ine chaiyo impregnation kune yakaoma mamiriro.

Internal insulation chimiro

Kutepfenyura kweSatellite kune chinhu chekuparadzira – mutsara wakananga wekuona pakati peiyo radiation sosi uye antenna inodiwa. Bazi remuti rinozununguka, chivakwa chiri pedyo, uye sinou inodonha inodonha zvinogona kukonzera dambudziko rakawanda. Izvo zvakakosha kuchengetedza iyo iripo chiratidzo chekugamuchira nhanho uye kuiunza kune anogamuchira. Pamusoro pechiratidzo cheterevhizheni, mirairo yekushandura inofambiswa pamusoro petambo. Iwe unofanirwa kusarudza chigadzirwa chine mbiri yemukati skrini: braid (mesh) uye layer yealuminium foil.

Cable kukotama kugona

Kashoma zvinokwanisika kuisa mutsara wakatwasuka. Nokudaro, zvinokurudzirwa kusarudza mhinduro yewaya pakuputsika.

Kona yakapinza yesheath yekunze inoratidza kudzika kwemakanika. Izvo zvikamu zvemukati zvakasununguka zvakabatanidzwa kune insulation. Kutsemuka kwakakomberedzwa kunoratidza kusimba kwechimiro, kuswedera kwepedyo kwezvinhu zvewaya kune mumwe nemumwe. Yakajairwa coax ukobvu kune satellite dish: 6mm.

Kugadzirira tambo yekuisa

Nyanzvi dzine ruzivo dzinoti magetsi isayenzi yekubatana. Kukanganisa kwekuvimbika kwekubatana kunobvisa basa rekuisa mutsara.

Nzira yekugadzira tambo yekubatanidza

Kana kureba kubva kune anogamuchira kuenda kune satellite dish kunosvika 10-15 metres, zvino zvinokwanisika kutenga yakagadzirira-yakagadzirwa sampu ine zvibatanidza. Kana zvichidikanwa, zvibatanidza zvinoshandiswa. F yefomu rinotevera rinoiswa kumucheto kwewaya.

Chibatanidza chakanyorwa (muenzaniso): Plug
F (nut) paRG-6 (zinc) (F113-55). Chiratidzo chikuru: RG-6. Izvi zvinoreva kuti yakagadzirirwa RF tambo ine dhayamita ye6 mm pamusoro pekuvharira kwekunze. Maitiro ekugadzirisa nemazvo iyo F-connector pane coax inoratidzwa muvhidhiyo: https://youtu.be/4geyGxfQAKg Cable inobvisa dhishi resatellite:

Chii chekuteerera paunenge uchiisa tambo yetambo

Usati watenga tambo, unoda kujekesa urefu hwenzira, zvikamu zvakaoma.

Zvakakosha! Kuiswa kunofanira kuitwa “nekusingaperi”, pasina kumwe kugadziridzwa uye kusiya “kwezotevera”.

Zvinokurudzirwa:

3. Dzivisa kukotama kwakapinza.
4. Paunenge uchitungamira kunze kwemadziro kuenda kumugwagwa, ita chiuno chinonongedza pasi. Hunyoro panguva yekunaya huchadonha, uye kwete kudonhedza mugomba pamwe negoko.
5. Pakuisa nepahwindo remapuranga furemu, chera gomba rakakura muhupamhi (ne 1 mm) kupfuura ukobvu hwetambo.
6. Usaboora furemu yepurasitiki. Iine hermetic dhizaini, iyo dhizaini inogona kuzadzwa negasi sehwindo rakapetwa kaviri. Shandisa gap pakati pehwindo uye madziro akazadzwa neanokwira furo. Kazhinji mhedziso yakadaro inowanikwa kubva pasi pehwindo.
7. Mumba, vanza wiring mubhokisi repurasitiki kana mumabhodhi e skirting ane cable channels.
8. Usaisa pamwe chete netambo dzemagetsi, pedyo nemidziyo ine simba nemidziyo. Izvi zvinogona kuva chikonzero chekuvhiringidza.
9. Nzvimbo dzekubuda nadzo kunzvimbo dzakavhurika dzinofanira kuvharwa. Mitsetse yekunze yakatwasuka haifanire kuregeredza kana kuzunguzika zvakasununguka mumamiriro emhepo.
10. Dzivisa kubatana kwakawanda kuburikidza nemakonikisheni pese pazvinogoneka.

Maitiro ekutarisa kuvimbika kweiyo yakaiswa coaxial tambo

Izvo zvinoitika kuti chimiro chemufananidzo chadzikira, pane ripples pachiratidziro,
mitsetse yemavara, kana kuparara kwemufananidzo kuita diki mativi. Kukanganiswa kwenzwi.

Kutsvaga nzvimbo yekukuvadza uchishandisa midziyo iripo

Mukana wekukanganisa kwenzvimbo unowedzera nekushandiswa kwemasaini akati wandei. Zvinogoneka zvinokonzeresa kuderera kwemhando yemufananidzo kana kurasikirwa kwechiratidzo zvinokurukurwa nehunyanzvi muvhidhiyo: https://youtu.be/gYy2R_1W9Zs Maitiro ekutarisa satellite dish tambo: https://youtu.be/pmQ9oOzqoYo Mushure mekumisa nzvimbo yakakuvadzwa, yemuviri. kutarisa kwetambo kunoitwa.

Kushandiswa kwezvinhu zvinotakurika

Iwe unozoda muyedzo wepamba (multimeter) iyo inokutendera kuti utarise (acoustically) kuona kutendeseka kwepakati musimboti uye kusavapo kwepfupi dunhu rine skrini.
Maitiro ekutarisa akati wandei akateedzana zvikamu mumugwagwa mukuru:

1. Bvisa (kusunungura) waya kubva panzvimbo yekutaura iri padyo nekamuri.
2. Bvisa zvibatanidza, kusunungura zvikwangwani uye nechepakati cores.
3. Gadzirira mudziyo wekuyera kuramba (maererano nemirairo).
4. Tarisa mutsetse wakananga kune antenna. Batanidza probes kupakati core uye simbi yakarukwa. Zvakakosha. Makondakita haafaniri kubata. Kana iyo yakakosha iri mumamiriro akanaka, mudziyo ucharatidza kukosha kunze kweimwe, asi kwete zero. Kana yakavharwa, kuverenga kuchaita zero (kana kuratidza 0), uye chiratidzo cheacoustic chichaonekwa (kana dhizaini yechishandiso ichipa). Iyo multimeter haizopindure kune zororo, ichisiya kukosha 1 kusachinja.
5. Saizvozvo, tarisa waya munzira yekamuri. Tambo kumugamuchiri inofanira kubatanidzwa.

Muenzaniso wekufona unokurudzirwa pavhidhiyo: https://youtu.be/k0fS-doHtDY

Mhando dzakakurumbira dzecoaxial tambo dzesatellite dish

Pakati peassortment pane zvese bhajeti uye zvinodhura mhando. Ndeipi tambo yakanakira “ndiro”? Mhedziso yezvigadzirwa zvakakurumbira, pamwe chete nezvakanakira uye zvisingabatsiri.

RK-75

Yakajairika tambo yemumba.
Chikamu chemuchinjikwa chepakati waya chinosiyana pakati pe 0.75-1.63 square metres. mm, polyethylene furo rekunze goko. Zvakanakira:

• kukwanisa;
• mamiriro ekushandiswa: -/+ 60 gr. KUBVA.

Kukanganisa:

• zvingasarudzwa ne-single-layer braided screen zvinogoneka.

RG-6U

Production China. Analogue yeRK-75. Copper central conductor (1 mm) kana mhangura-plated simbi musimboti.
Zvakanakira:

• kudzivirirwa kaviri;
• nokuda kwefrequency range kusvika ku3 GHz (satellite broadcast channels).

Kukanganisa:

• kunze kwePVC insulation inokodzera chete kuiswa kwemukati kweiyo track.

SAT-50

Chimiro cheItaly che coax. Kuwedzera conductive zvivakwa zvekuisa kure. Double screen, 1 mm gobvu mhangura musimboti.
Zvakanakira:

• yepakati-yemutengo chikamu tambo ine hunhu hwakagadziridzwa;
• mazwi ekushandiswa akakodzera kumatunhu mazhinji eRussia.

Kukanganisa:

• ganda rakapfava (sags pamatanho mahombe pakati penzvimbo dzekunamatira).

SAT-703

Yakavandudzwa analogue yeSAT-50. Pakati pepakati dhayamita: 1.13 mm. Kurasikirwa kwakaderedzwa panguva yekuparadzira chiratidzo pamadaro marefu.
Zvakanakira:

• kushorwa nemamiriro okunze akaoma;
• kureba kubva pa50 metres.

Kukanganisa:

• iyo shoma yekukotama dhayamita ndeye 35-40 mm.

DG-113

Vanamazvikokota vanoimaka seyakanakisa nhepfenyuro yesatellite. Izvo zvinodzivirira zvechidzitiro zviri padyo ne90 dB, izvo zvinobvisa zvachose pesvedzero yekunze kwemagetsi kukanganiswa.
Zvakanakira:

• kusimba, kuvimbika
• kusadzivirirwa nemamiriro ezvinhu ehasha;
• zvishoma chiratidzo attenuation.

Kukanganisa:

• mutengo.

Mibvunzo inowanzo bvunzwa

Ndeupi musimboti uri nani: mhangura kana simbi? Mhangura ine yakanakisa conductivity yemagetsi. Iyo conductor yepakati inogona kunge iri yemamwe alloys. Izvi hazvikanganisi kushanda, sezvo mhangura sputtering inoshandiswa pamusoro.
Ndeupi mutsauko uripo pakati pewaya dzine nhema nechena dzekunze insulation? Kusvikira munguva pfupi yapfuura, zvaitendwa kuti tambo ine chiedza-ruvara inoitirwa mukati meimba wiring, dema – kune nzvimbo dzekunze. Zvigadzirwa zvemazuva ano hazvienderane neiyo gradation. Inokurudzirwa kutarisa kana uchitenga.
Mutengesi akati tambo “yakaderera frequency”, izvi zvinorevei? Iyo conductive zvimiro zveiyo musimboti inoderedza yakakwirira bhendi satellite chiteshi.
Zvinoita here kubatanidza 50 ohm tambo kana pasina 75 ohm waya?Pazvinhambwe zvidiki (kusvika ku 10 metres) pakati pe satellite dish uye mugamuchiri anobvumidzwa. Unhu hwechiratidzo hunoenderana nezvinhu zvakawanda. Sarudzo chaiyo yetambo inobatsira kuvandudza mashandiro pasina kuwedzera kushandiswa kwemaamplifiers kana uchiisa mutsara.