Antenna is decimeter. Antenas for terevhizheni. Room antenna DMV. Decimeter antenna nemaoko ake

Musika wemazuva ano unopa mhando dzakawanda dzenyeredzi yekugamuchira terevhizheni yepasi. Kune miviri miviri mikuru yezvigadzirwa izvi, zvichibvumira kutora mamita uye kutaridzika kwemafirimu emhepo. Vanogonawo kugoverwa munzvimbo yekushandiswa kune kunze uye mukati. Izvozvi, hazvisi zvakasiyana zvikuru. Pano, kutanga kwezvose, kusimbiswa kunoiswa pahukuru nekuchengetedzwa kwemiganhu inodiwa pasi pesimba remamiriro ekunze. Muchikamu chino tichakurukura maitiro akange aripo ezvigadzirwa izvi, funga kuti zvii zvavanoita, uye kuti ungaita sei kuedza. Uye kune avo vanoda kufadza, tichakuudzai kuti antenna ye decimeter inogadzirwa sei nemaoko edu.

Uye chii chakasiyana?

Ngatiedze kutsanangura mumashoko mashomanana kuti tingaziva sei rudzi rwechigadzirwa chiri mberi kwako. Iyo antenna yebhendi ye decimeter inoratidzika semakero. Ivaise iyo yakafanana pasi. Metro TV antennas akayambuka aluminium tubes. Kuonekwa kwemhando mbiri idzi kunowanikwa mumufananidzo uri pasi apa. Iko kunewo majoka akabatanidzwa, apo zvose "mashizha" uye kuputika mabhuni zvakabatanidzwa.

Dambudziko rekusarudza

Zvingaita sekuti zvinhu zvose zviri nyore. Zvisinei, munyaya iyi mutengi anotarisana nemubvunzo wekusarudza nzira yakakodzera, zvipi zvingasarudzwa kuti uzviite. Muzhinji, zvakanakisisa kuedza ma antennas TV zvakananga mumamiriro ezvinhu avanoshanda. Kupfuura zviratidzo zveredhiyo kazhinji kune munhu kune imwe nzvimbo. Nokudaro, chigadzirwa pasi pe laboratori zvinoratidza chiitiko chimwe chete, uye "mumunda" chakasiyana chaizvo. Pane imwe nzira, iyo inobvumira kuedza zvose mamita uye decimeter TV antenna. Zvisinei, patinosarudza chigadzirwa chakadaro muchitoro, hatina mukana wekutungamirira muedzo wakazara. Hapana mutengesi achabvumirana kutipa isu mazita antennasi akasiyana-siyana ekuongororwa. Muchiitiko ichi, unofanirwa kuvimba nezviratidzo zvezvinhu izvi. Uye kutarisira kuti antenna yakasarudzwa ichaita mabasa ayo maererano nedhipatimendi yedhara, uye kwete mamiriro chaiwo.

Basic parameters

The decimeter antenna inonyanya kuratidzwa nehutungamiri. Izvo zviyero zvakakosha zvechimiro ichi ndihupamhi hwechidimbu (anobatsira) lobes uye nehupamhi hwe lobe guru. Iwawo huwandu hwemufananidzo unotsanangurwa mumapuranga asinganzwisisiki uye akajeka ari muzinga re 0.707 rekukosha kukuru. Nokudaro, maererano neyiyi parameter (iyo yakakura ye lobe huru), mifananidzo yakakamurwa kuva isina kutungamirirwa uye inotungamirirwa. Izvi zvinorevei? Kana chikafu chikuru chichiziva chimiro chiduku, ipapo antenna (decimeter) inotungamirira. Izvo inotevera inokosha parameter inzwi rekuchengetedzwa kwemhepo. Izvi zvinowanzoenderana nehupamhi hwemashure nechemberi lobes yemufananidzo. Inotsanangurwa nechiyero chechigadzirwa chakagadzirwa ne antenna pasi pemamiriro ehutano hwakarongedzwa panguva yekugamuchira chiratidzo kubva kunheyo huru kusvika kune simba (pamwe chete nemutoro) paunogamuchira kubva pane zvinyorwa zvakare uye zvakasiyana. Chokutanga pane zvose, chimiro chemufananidzo chinomirira nhamba yevatungamiri uye kugadzirwa kwe antenna.

Izwi rokuti "wave wave" rinorevei?

Nheyo dzemhando iyi yeTV dzinobatsira zvikuru vatungamiri vezviratidzo zveredhiyo. Izvo zvinoshandiswa zvakanyanya munzvimbo dzisina kujeka terevhizheni ether. Iyo antenna (decimeter) "wave wave" ine pfuma yakawanda uye ine mazano akanaka. Mukuwedzera, zvigadzirwa izvi zvine uwandu hushoma, izvo (pamwe nehupamhi hwekusimudzira) hunoita kuti huzivikanwe zvikuru pakati pevagari vemisha yezororo nemamwe misha iri kure kure. Iyi antenna inewo zita rechipiri - Uda-Yaga (nezita revakashambadzi veJapan, avo vane kodzero iyi).

Pfungwa yekushanda

Antenna ye decimeter "wave wave" ndeyeti yezvinhu: passive (reflector) uye inoshanda (vibrator), uyewo vatungamiri vanoverengeka, vanowanikwa pane imwe chete. Pfungwa yekushanda kwayo ndeyotevera. Izvo zvinosvibisa kune imwe nzvimbo yakareba, iyo iri mumagetsi emagetsi emushumo weredhiyo uye inoratidzira paanowanzoonekwa nechiratidzo chekugamuchira. Inokonzera simba rekushandisa magetsi (EMF). Pamusoro pechinhu chimwe nechimwe chinokanganisa, masimba emagetsi anoshandiswa, izvo zvinotungamirirawo kubuda kweEEM. Somugumisiro, vanodzokororazve masimba emagetsi emagetsi. Uyewo, masimi aya anokonzera EMF yakawedzera pane dhizha. Nokudaro, kuenzana kwezvinhu zvisingabatsiri, uyewo mararamiro avo kune anoshandura vibrator, vanosarudzwa zvakadai kuti EMF inokonzerwa navo nekuda kweminda yepamusoro yakanga iri muchikamu neEEM main, iyo inokonzerwa mairi neyokutanga mashizha emagetsi. Muchiitiko ichi, EMF yose inopfupikiswa, iyo inopa kuwedzerwa kwekugadzirwa kwekugadzirwa kunoenzaniswa nemunhu mumwe chete. Nokudaro, kunyange antenna yechipinda chemukati yeDMV inogona kupa chimiro chakachengetedzwa chechiratidzo.

The reflector (passive element) yakaiswa mushure mekudengenyerera 0.15-0.2 λ ₀ . Kureba kwayo kunofanira kupfuudza urefu hwechigadzirwa chinoitwa ne5-15 muzana. Antenna yakadaro inogadzira nzira imwe chete yechiratidzo mumapuranga akajeka uye akareba. Somugumisiro, kugamuchirwa kwezviratidzo zvinoratidzika uye minda inobva kumashure kweantenna yakanyanya kuderedzwa. Kana zvakakosha kugamuchira chiratidzo cheterevhizheni pamakwikwi makuru, uye mumamiriro ezvinhu akaoma, pamberi pekuwanda kwekupindira, zvinokurudzirwa kushandisa antenna nhatu-nepamusoro-e-element, iyo inosanganisira vibrator inoshanda, mumwe kana vatungamiri vakawanda uye kuratidza.

Kuratidza uye kuratidza zviratidzo

Mune imwe nyaya yakatsaurirwa kumagetsi ekutambira (Tele-Sputnik Nha. 11, 1998), zvakaonekwa kuti pane imwe nzvimbo iyo chiratidzo chemashoko hachisi chimiro (kureva, kwete laboratori) oscillator uye antenna inopenya, asi chiratidzo chinoparadzirwa neuterevhizheni, chakakosha Basa rinoitwa nemamiriro ekunze, uyewo nzvimbo yewakagamuchira. Izvi zvinonyanya kukanganisa basa reDMV-range yemiti. Izvi zvinotsanangurwa nechokuti kukwirira kwemukati ye decimeter range kwakaderera, maererano nekudaro, kubfuscation kwezvipingamupinyi zvakanyanya kuipa, uye chero kuratidzwa kwechiratidzo kunotora basa rinokosha muhukuru hwemufananidzo wakagamuchirwa. Kunyanya, kunyange rusvingo rweimba runogona kuratidza mafungu. Saka, kana kusina kuonekwa pachena, iyi pfuma inogona kushandiswa - kugamuchira chiratidzo chinoratidza. Zvisinei, unhu hwayo huchava hwakaderera kupfuura hweyo chaiyo. Kana uwandu hwechiratidzo chekuparidzira hukwirira, asi hapana ruvara rwekuona, saka iwe unogona kushandisa wave yakaratidzwa. Ichokwadi, iyo inowanikwa mukati mekunamatira antenna inoshandisa pane iyi nheyo. Mushure mezvose, muimba mune zvakaoma kubata mhepo yakananga kana mahwindo achienda kune zvakasiyana. Saka, kana ukaedza, iwe unogona kugara uchiwana pfungwa iyo chiratidzo chinogamuchirwa chichave chakakwirira. Asi munyaya yekuona zvakajeka, chero chipi zvacho chinoratidza kupindira kunoparadza iyo yakagamuchirwa.

Iyo nzira, inobvumira kuenzanisa zviyero zveantenna

Kuti vaongorore zvinogadziriswa, vanofanirwa kugadzira mamiriro akafanana:

1. Sarudza nzvimbo yekuisa iyo antenna yako inoshanda. Unogona kushandisa chivako, denga kana mast. Chinhu chikuru ndechokuti zvose zvakakwirira uye nzvimbo yacho inofanira kuva yakafanana kune zvigadzirwa zvose.

2. Nhungamiro kune chitubu chechiratidzo chinoparidzirwa chinofanira kuchengetedzwa nekururama kwezvidimbu zvitatu. Kuti uite izvi, iwe unogona kuita chiratidzo chakakosha pombi yekutakura.

3. Mitezo inofanira kuitwa pasi pemamiriro ekunze akafanana.

4. Indaneti inobatanidza antenna neTV inofanira kuva nekushorwa kwakafanana nekureba. Zvakanakisisa kushandisa tambo imwe chete, kushandura chete vatori.

Kuongororwa kunofanira kuitwa kunze kwezvigadzirwa zvemhando imwe chete. Semuenzaniso, antenna yekunze yeDMV-band haafaniri kuenzaniswa nekunze kana nemamamera ekugamuchira. Inofanira kunzwisiswa kuti miedzo yemumunda inogona kugovera migumisiro iyo ichasiyana nezvinhu zvichibva kuongorori rekuongorora.

Dzorerai antenna yeTV

Munguva ichangopfuura, munhau, nhepfenyuro, ruzivo rwehuwandu huri kutaurirwa pamusoro pekudiwa kwekutsvaga kuterevhizheni. Vakawanda vatoita izvi, asi mumwe munhu ari kufunga. Kusvika ikozvino, chiratidzo chinoparidzirwa mumadziro maviri. Zvisinei, hutano hweAtagog TV hunosiya zvakawanda kudiwa. Mukubatanidzwa uku, vanhu vanofarira kuti chii chinonzi antennas chinogona kushandiswa T2. Ngatitorei izvi kunze. Zvechokwadi, kuparidzirwa kweterevhizheni kudivi pamusana weDMV-band. Nokuda kwekugamuchira kwayo, DMV-antenna inogona kusvika. Muzvitoro, iwe unowanzoona mazvigadziro anogamuchira, izvo zvinoratidza kuti zvakagadzirirwa terevhizheni. Zvisinei, iyi inofanirwa kutengeswa inokubvumira kutengesa antenna yakawanda inodhura kupfuura inodhura. Kutenga chigadzirwa chakadaro, iwe hauzovi nechivimbo chokuti chichapa chiyekanho chakanaka kudarika chaicho chiri pamba pako uye chinoshanda kwemakore anopfuura rimwe. Sezvatareva pakutanga, unhu hunoenderana zvikuru nehuwandu hwechiratidzo chekutapurirwa uye mamiriro ehutano hwekuona. Zvisinei, inofanirwa kutarisirwa mupfungwa kuti mumaguta akawanda simba rinowedzera simba rinoshandiswa kutumira terevhizheni pane yeanorogue. Izvi zvinoitwa kuitira kuti kukurumidze kuchinja kune imwe mamiriro ezvinhu. Mushure mezvose, vataridzi vanoda kuona mufananidzo wakajeka, uye kwete "chando" pane zvikwangwani. Nokudaro, kana pane munhu anogamuchira muhwindo, pane zvakanyorwa kuti "UHF antenna yeDVB-T2", ziva: izvi hazvirevi kuti pane chimwe chinhu chakakosha pamberi pako. Haasi mutengesi akatendeseka chaiye anoda kutenga mari kune mutengi asingazivi. Iwe unofanirwawo kuziva kuti purogiramu yekushandura kune imwe nheyo itsva inopa kugadzirirwa kwezvipo zvinopa mazano. Mavari munogona kuwana ruzivo rwakakwana pane chero dambudziko rakabatana neterevhizheni. Zvose zvakabvunzurudzwa hazvina mari. Mune mamwe maguta, mudziyo uyu uri mu test mode, saka zviratidzo zvingave zvisingachinji kana kuti zvisina simba. Usanetseka, vashandi vemunharaunda nguva dzose vachakukurudzira kuti ungagadzirisa sei dambudziko nehuwandu hwekugamuchira chiratidzo.

Decimeter antenna nemaoko ake

Kureba kwemafungu eDMW ari mukati ma-10 cm kusvika 1 m. Izvi zvine zita ravo. Electromagnetic oscillations pane izvi zvinowanzofambidzana zvikuru mumuganhu wakajeka. Vanenge vasingadi kutenderera zvipingamupinyi, asi zvishoma nezvishoma zvinoratidzwa ne troposphere. Munyaya iyi, kutaurirana kwemarefu kwenguva refu mumutambo we decimeter kwakaoma zvikuru. Nharaunda yaro haina kudarika makiromita zana. Chimbofunga mienzaniso miviri yekuti ungagadzira sei antenna kumba.

Shanduro yekutanga yeiyo inoitwa terevhizheni inoparidzirwa yevhisi, ichataura, inounganidza pamabvi kubva pane zvigadziriswa. Nzira dzeDMV dziri pane imwe nzvimbo kubva 300 MHz kusvika ku3 GHz. Basa redu nderokuita antenna inoshanda pazvivako izvi. Nokuda kweizvi tinoda mapeji maviri emabiro ane simba re 0.5 litita. Kana iwe ukashandisa simba rakakura, huwandu hunogamuchirwa huchaderera. Nokuda kwekugadza, unoda ruzivo, unogona kushandisa bhodhi rine hupamhi hwemasendimita 10. Unogonawo kushandisa shandarira yemasango, apo iyo yakagamuchirwa antenna inogona kuiswa pamisungo pane chero nzvimbo yakakodzera muimba. Mukuwedzera kune fomu uye makani, zvinokosha kugadzirira mapepa ekuzvidzivirira, zvishandiso, coaxial cable, connector, terminals, insulation tape. Pamugumo mumwe wekambo, isa paTV connector uye ugoipedze. Kuguma kwechipiri kunoiswa mu-terminal terminal. Zvadaro gadzirai zvidzidzo kumutsipa wezvitsuwa zvemugumo. Iwaya inofanira kunge yakanamana nechesimbi. Zvino rambai muchiunganidza antenna pacharo. Kuti tiite izvi, tinogadzirisa mabhandi pamutsetse wakadzika wepamusoro nemitsipa yavo kuti tiasangane navo. Chikamu pakati pavo chinofanira kuva 75 mm. Kugadzirisa makani, unogona kushandisa tape yekudzivirira. Zvose, antenna yakagadzirira! Iye zvino tinoda kuwana nzvimbo yekugamuchirwa kwechiratidzo cheterevhizheni uye toga "hanger" yedu munzvimbo ino.

Muteveri weTV

Ichi chikamu chinoitirwa vanhu vasingadi kushandisa zvigadzirwa zvekare (analogog), asi vanoda kushandisa antenna chaiyo yepamusoro yemhando itsva. Ne maoko ake pachake, mutori akadaro anounganidzawo zvepakutanga. Nokuda kweizvi tichada ruvara rwehuni (runogona kugadzirwa neplexiglass) frame ne diagonal ye 200 mm uye inowanikwa kadhi RC-75. Yakaiswa kune iwe unofanirwa ichisarudzo is zigzag antenna. Yakashanda zvakanaka mumutambo wekutambira TV yeIndaneti. Uye inogona kushandiswa munzvimbo dzisina kuoneka zvakananga kune iyo chiratidzo chekushandisa. Kana iwe uine utera husina simba, unogona kuunganidza animiridziri. Saka, ngatitange kushanda. Gadzirai mugumo wekamberi ne 20 mm. Zvadaro, bendesa firimu nenzira yechikwereti ine diagonal ye 175 mm. Kuguma kwave kwakananga kunze kwekona yemadhigirii makumi maviri, chikamu chechipiri chakakanganiswa chinonamatira. Shandisai zvakakwana zvidzidzo. Iyo yakasara yakadzika midzi inomiswa zvakasununguka mumhepo. Kune imwe kona yakatarisana yekona, kunyatsobvisa kusungirirwa uye chinyorwa panzvimbo ye 200 mm. Ichi chichava musoro we antenna yedu. Iye zvino tanidza iyo yakagadzirwa nepamusoro nepamusoro wehuni. Muchikamu chezasi, apo magumo acho maviri akabatanidzwa, mhangura yemhangura yakagadzirwa nesimbi yakaoma inofanira kushandiswa. Izvi zvinopa hutano hwakanakisisa hwemagetsi. Ndizvo zvose, decimeter antenna yehuterevhizheni yemagetsi yakagadzirira. Kana ikakonzerwa kubva kunze, unogona kugadzira mapurisa epurasitiki, iyo inodzivirira chigadzirwa kubva mvura.