Nzira dzekugadzira DVB-T2 antenna dzekugamuchira terevhizheni yedhijitari

Kana iwe usingade kutenga
DVB-T2 antenna yedhijitari TV , unogona kuzviita iwe pachako uchishandisa maturusi aripo. Sezvo pasina dhizaini inogona kubudirira kushanda mumamiriro akasiyana-siyana, iwe unofanirwa kusarudza iyo yakanyatsokodzera shanduro yemudziyo wakagadzirwa kumba, zvichienderana nemamiriro chaiwo.

Nyore Antennas

Kana paine kudiwa kwekukurumidzira kuvaka DVB T2 antenna, uye runyorwa rwezvakagadziridzwa zvinhu zvishoma, unogona kuunganidza chinhu chekutanga iwe pachako.

“Tin” (can) antenna

Inounganidza nekukurumidza uye nyore. Kuti ugamuchire zvakanaka, unoda chiratidzo chepamusoro-soro pasina zvipingamupinyi. Mhedzisiro huru inogona kuwanikwa munzvimbo dzepasi pevhu nemataundi madiki. Kugadzira iwe unoda:

• doro magaba – 2 pcs.;
• screwdriver, mabhaudhi, self-tapping screws;
• plug, tambo;
• waya yemhangura (chidimbu chiduku);
• adhesive tepi kana insulating tepi;
• matanda emapuranga – 2 pcs.

Kune antenna, zvakakosha kuita cruciform frame kubva pahuni. Zvadaro tinoita nhanho dzinotevera:

1. Isu tinoita maburi emabhoti pakati pepasi pemakani.
2. Isu tinobvisa tambo yekuvharisa tisingakanganise iyo yekunze contour, yakaenzana pakureba kune matatu zvirongo + imwe 20 cm.
3. Isu tinotambanudza tambo kuburikidza negomba rimwe kusvika kune rimwe, tichiisa makani nemitsipa yavo yakafanana. Isu tinogadzirisa tambo pamagumo nebhaudhi kana self-tapping screw.
4. Isu tinogadzirisa tambo kubva mugomba uye chikamu chayo chisina chinhu pakati pemabhangi uye waya.
5. Isu tinogadzirisa zvirongo ne tepi kana insulating tepi (imwe kutendeuka yakakwana) kune iyo furemu bar, iri yakatwasuka.
6. Isu tinonamatira plug.

Paunenge uchikotama, usakuvadza tambo, kana zvisina kudaro iwe haungawani chiratidzo chakanaka. Usasvetuka pane isina chinhu tambo chikamu – une muganho we 0.2 m.

Iye zvino tinosarudza nguva inodiwa pakati pezvirongo. Isu tinobatanidza plug uye tinovafambisa pamwe chete nebhari kusvikira chiratidzo chakagadzikana chagamuchirwa. Sezvo mutemo, chiitiko chikuru chinowanikwa kure ne 7 cm kubva kune imwe chirongo kuenda kune imwe. Mushure meizvi, tinozvibatanidza zvakasimba kune contour. Kana iyo antenna yakashandiswa kunze, zvakakosha kuifukidza ne polyethylene kana kugadzira purasitiki. Iwe unogona kukwira mudziyo pane hook. Kana inopfuura 2 cm yetambo isina chinhu ichisara pakubuda kubva mugomba, peta chikamu chakawandisa ne tepi inodzivirira. Maitiro ekugadzira antenna yakapusa kubva mumakani inoratidzwa muvhidhiyo iyi: https://www.youtube.com/watch?v=kt8u3U-Hp8g

“The loop”

Chikamu chinoshanda itambo yeTV. Iyi antenna yakagadzirwa seizvi:

1. Bvisa tambo kubva kune yakanganisa antenna.
2. Isu tinochenesa magumo.
3. Isu tinoyera 0.4 m, bvisa iyo insulation ne20 mm, tichiedza kusakuvadza rekunze redunhu.
4. Nzvimbo isina chinhu uye chikamu chakacheneswa chakasungirirwa zvakasimba mukuenderana newaya.

Chigumisiro chinofanira kunge chiri denderedzwa (zvishoma kudarika 0.15 m muhupamhi) kubva kune tambo semugamuchiri. Mushure maizvozvi, pakati pakatarisana nerutivi rwechisungo chekubatanidza, chiyera 40 mm uye bvisa chivharo. Iye zvino antenna inogona kushandiswa. Izvo zvakashata zvechigadzirwa ruzha rwayo, sezvo tambo yekupedzisira yakazaruka. Asi nokuda kwekushandiswa kwenguva pfupi, antenna yakadaro ichaita. Maitiro ekugadzira akareruka tambo loop antenna inoratidzwa muvhidhiyo pazasi: https://www.youtube.com/watch?v=XdD3nANJbQY

Kune antenna yakadai, zvinodikanwa kuve neT2 tuner kana TV inofanirwa kunge ine yakavakirwa-mukati T2.

Antenna kunze kwebhokisi

Chinhu chekutanga chekugadzirwa kwechigadzirwa kikadhibhodhi bhokisi. Isu tinocheka 2 rectangles ye 0.25×0.3 m kubva pairi. Unofanirawo kugadzirira:

• TV tambo ine plug;
• mabhaudhi, nzungu (2 pcs.);
• screwdriver, razor blade;
• waya (zvichida mhangura);
• pepa rekudya kana foil;
• glue (mufundisi akakodzera).

Isu tinocheka 2 masikweya kubva pamapepa echikafu (iyo inotenderera inofanira kunge yakaita semakadhibhodhi mabheji). Namatidza zvakasimba kune kadhibhodhi risina chinhu. Tinobvisa zvakasara zveglue.

Paunenge uchiisa foil kune kadhibhodhi, dzivisa mapeji uye protrusions, kana zvisina kudaro kugamuchira kuchava kwakashata.

Iwo masikweya akagadzirwa anozova chikamu chekugamuchira cheantenna. Iye zvino tinobatanidza tambo. Ne blade tinoita maburi emabhoti – pamakona emakona (akatarisana kumativi). Zvadaro tinokwevera mukati mukati kune rimwe remakomba, uye kunze kwekona (metal casing) kune imwe. Isu tinosunga macontacts nemabhaudhi. Tinowana kugamuchira kwakagadzikana nekubatanidza tambo kuTV. Isu tinofambisa masikweya tichichengetedza kufanana kwemativi ari padyo. Tawana chinhambwe chinodiwa, tinonamatira masikweya kune furemu. Tarisa vhidhiyo inoratidza nhanho nhanho maitiro ekugadzira antenna yakadai: https://youtu.be/gwqKRAePtZw

Shandisa chigadziro chete
semukati antenna , sezvo foil isingamiri nemamiriro ekunze zvakanaka.

Z-antenna – decimeter antenna yedhijitari terevhizheni DVB-T2

Ichi chigadzirwa chepamba chinonziwo “Square”, “People’s Zigzag”, “Rhombus”. Mufananidzo uri pazasi unoratidza yakareruka vhezheni yeiyo classic zigzag. Kuti uwedzere kunzwisisika, inogadzirwa ne capacitive inserts (1, 2) uye reflector A. Kana chiyero chechiratidzo chinogamuchirwa, izvi hazvidiwi. Kuti ugadzire antenna nemaoko ako pachako, iwe uchada machubhu akagadzirwa nemhangura, aruminiyamu, ndarira kana mitsetse ye 0.1-0.15 m. Kana uchiisa chimiro kunze, aruminiyamu haina kunyanyokodzera izvi nekuda kwekunzwa kwayo kuita ngura. Nekugadzira capacitive inopinza, foil, tini kana simbi mesh yakakodzera. Mushure mekuiswa, ivo vanofanirwa kugadzira contour soldering.

Kuiswa kwetambo kunofanirwa kuitwa pasina mabhendi akapinza uye mukati mekupinza kweparutivi.

Z-antenna yemafungu edecimeter[/ Caption] Iyo yemhando yepamusoro yeZ-antenna inoratidzirwa nekushanda pa1-5 kana 6-12 chiteshi. Kuti uigadzirire, unofanirwa kugadzirira:

• mapuranga emapuranga;
• mhangura enameled waya 0.6-1.2 mm;
• zvimedu zvefiberglass (foil), zviyero zveiyo inoenderana 1-5 / 6-12 chiteshi:
  • A = 340/95 cm;
  • B, C = 170/45 cm;
  • b = 10/2.8 cm;
  • H = 30/10 cm.

E – iyi poindi inoratidzirwa ne zero kugona – iyo braid inofanirwa kutengeswa kune metallized ndiro yekutsigira. Reflector paramita (zvakare yematanho anoenderana 1-5/6-12):

• A \u003d 62 / 17.5 cm;
• B = 30/13 cm;
• D = 320/90 cm.

Imwe dhayagiramu uye imwe tsananguro inozobatsira mukuunganidza antenna inoratidzwa pazasi:

Ita-iwe-iwe pachako tunable inoshanda antenna yedhijitari TV:

https://youtu.be/l1PuJLS7BlM

mufananidzo sere antenna

Iyo inoonekwa seimwe yeanonyanya kushandiswa pamba midziyo yekugamuchira yedhijitari TV. Iye anewo rimwe zita –
antenna Kharchenkokana maviri. Chikwere chakaita sedhaimani kaviri. Ichi chigadzirwa chinogona kubudirira kushandiswa mumamiriro akasiyana-siyana, kunze kwezvivakwa zvakanyanya-dense, sezvo zvinokanganisa kugamuchirwa kwezviratidzo zvinoratidzwa. Paunenge uchigadzira “masere” zvakakosha kuita maverengero akakodzera, uchifunga nezve wavelength. Mativi ese echikwere uye hafu-urefu hwechikamu chewave anofanira kuenderana. Nekuda kweizvozvo, iyo perimeter ichave yakaenzana nehurefu hwesaisai pachayo. Semuenzaniso, kune DTV munharaunda yemetropolitan, ichava 0.6 m, zvichiteerana, rumwe rutivi 0.15 m. Kuti uite antenna yakadaro, unoda kuchengetedza mhangura (2-3 mm) kana aluminium (5-6) mm) waya. Maererano nemafungiro ekugadzira, zvichave zvakakosha kugadzira mativi maviri. Izvo zvinodikanwa kugura 2 cm kubva kumigumo yewaya uye kuvasungirira kune mumwe nemumwe kuitira kuti

Iva nechokwadi chekuparadzanisa magumo akasungirirwa ewaya peya kubva kune mumwe nemumwe, zvikasadaro antenna inongoburitsa chiratidzo.

Kune chimiro, danda riri nyore rinowanzoshandiswa. Kana zviito zvese zvakaitwa nemazvo, mugamuchiri anobva agadziriswa zvakasimba, sezvo zvisingakodzeri kutarisa kushanda. Iyo tambo inotengeswa chaizvo pakati, pakusangana kwewaya inopera kune imwe yemapoinzi. Tarisa vhidhiyo yekugadzira antenna biquadratic nemaoko ako pachako: https://www.youtube.com/watch?v=3o0ZBUcL2f0

Three-element kana mana-element wave channel

Iyo yemhando yepamusoro ye “wave” matatu-element antenna inoratidzwa nekuvapo kwezvinhu zvinotevera:

• mutungamiriri, ane hurefu hudiki uye anonangidzirwa kune shongwe yeTV;
• rectangular vibrator;
• reflector.

Gain mudziyo – kusvika ku6 dB. Iyo antenna inokwanisa kunhonga inotaridza DVB-T2 siginecha kubva panzvimbo yeterevhizheni ingangoita 5 km kubva kana muchiratidzo chakananga kusvika 30 km. Kwete kupa pfuma yakawanda, chigadzirwa chakadaro hachina kukodzera kugamuchirwa kwenguva refu kwezviratidzo zvakaratidzwa. Kuti uwedzere kuwana, iwe unofanirwa kushongedza chimiro chine gumi kana kupfuura zvinhu. Zvakaoma kwazvo kugadzira antenna yakadaro iwe pachako. Zvakakodzera kuva nezvinhu zvitatu kana zvina. Iyo algorithm yezviito ndeiyi inotevera:

1. Izvo zvinodikanwa kuchengetedza patambo yemhangura kana chubhu kubva 0.2 kusvika 0.5 cm muhupamhi. Isu tinotengesa iyo reflector, director uye vibrator kune gwara remudziyo.
2. Chimiro chakabatanidzwa kune dielectric pole iri pedyo netambo. Iyo antenna inobatanidzwa nayo nechikamu chetambo yeantenna – U-elbow, ine wave resistance ye75 ohms. Kureba kwayo kunowedzerwa nekupfupisa chinhu chiri mumhando yetambo inoshandiswa.
3. Iyo antenna vibrator inotengeswa pamativi ese nepakati cores yeU-elbow. Iwo ekupedzisira akabatanidzwa nenzira imwechete kune zvidzitiro zvetambo inobuda, uye musimboti wayo wepakati wakabatana kune antenna vibrator.

Kuwedzerwa kweimwe mutungamiriri kuchabatsira kuwedzera pfuma nepamusoro pe2 dB, iyo ichapa mana-element antenna pakubuda uye kuwedzera yakagadzikana yekugamuchira nzvimbo nemakiromita akati wandei.

Maitiro ekugadzira matatu-atatu “wave chiteshi” antenna anoratidzwa muvhidhiyo iyi: https://www.youtube.com/watch?v=aLY0_7brvbo

Kaviri (katatu) square

Kuzvigadzira wega antenna iyi kwakafanana mukuverenga nebiquad mudziyo. Chimiro chekugadzira ndiko kurongeka kwemakwere akati wandei akafanana imwe mushure meimwe. Musiyano mukuru kubva kuG8 antenna kushaikwa kwekugashira kwechiratidzo chakatsiga kubva kuTV inodzokorora, iyo inobviswa kure kure. Chinangwa cheyakapetwa kaviri (katatu) sikweya ndeyekugamuchira masaini pane yakakwira radiation kumashure. Kazhinji shongwe yeterevhizheni muzvivakwa zvakabatana zvakanyanya, kunyangwe iri padyo, panogona kunge paine dzimwe shongwe dzekugamuchira dzakasiyana-siyana dzinojamba decimeter wave. Ichi chigadzirwa chemumba chinokwanisa kugashira masaisai ehumwe hurefu pasina matambudziko, uye dhizaini yemadhizaini emudziyo inoshanda seamplifier. Makwere akaiswa nyore pabhawa. Kuisa mudziyo wakatwasuka,

Batanidza zvikwere kune mumwe nemumwe kwete panzvimbo inoshanda, asi chete nerubatsiro rweanobuda mafuta masero. Kana izvi zvikasashanda, buritsa tambo zvakanyanya uye woitengesa kumakona epasi emakona, wobva waisunga kubhawa.

Mushure mekupedza kuungana kwemaskweya akati wandei, vagadzirise kwechinguva uye, nekuchinja madaro ari pakati pavo, ratidza iyo yakakwana yekugamuchira chiratidzo, wozozvigadzirisa zvakasimba. Maitiro ekugadzira antenna kubva akati wandei biquads kuti uwedzere pfuma inoratidzwa muvhidhiyo iyi: https://youtu.be/6mCVeQgPqvE

Antenna DVB T2 “Butterfly” (“Moth”)

Zvimiro, antenna yakadai inoratidzirwa neantennae inowanikwa yakatwasuka. Mune dzimwe nzira, michina yakadaro yakafanana nepini yefekitori michina yedhijitari TV yakagadzirwa muPoland, asi inosiyana pakuti inoshandisa furemu pachinzvimbo chechikamu chakapetwa. Kuti ugadzire “butterfly” nemaoko ako pachako, unofanirwa kuisa:

• drill uye screws;
• mutongi uye protractor;
• wire cutters;
• waya (6 mm) yakagadzirwa nealuminium yakareba mamita matatu;
• mabhoti ane nuts (16 pcs.) kana simbi yakasungirirwa;
• tsvimbo yehuni.

Semutemo, maPolish-akaitwa edhijitari TV antenna akagadzirirwa kuisirwa kunze, izvo zvinoreva kuti dhizaini iyi inodawo kuiswa kunze. Kuti utsungirire mhepo ine simba, zviri nani kushandisa kwete mhangura (3 mm) waya kune yakareba antennae, asi yakakura aluminium.

Digital TV zvirongwa zvinoshanda ne 21 yemuviri TV chiteshi (frequency 314 MHz, wavelength 0.63 m). Izvi zvinopindirana neiyo yakanyanya kudzokorora radiation yeRTRS. Kureba kunodiwa kwenzvimbo inoshanda ndeye 0,16 m, kune ese “antennae” – 2.56 m. Naizvozvo, waya yemamita matatu ichave yakakwana.

Tsvimbo inoshandiswa semapuranga, kureba kwayo kunofanira kunge kune 0.6 m. Izvi zvinoitwa sezvizvi:

1. Tinomaka mapoinzi mana pachinhambwe chakaenzana (0.2 m).
2. Isu tinodhirowa mitsara kubva pamapoinzi, ivo vanofanirwa kunyeperana kune mumwe kune mumwe uye perpendicular kune furemu.
3. Isu tinoyera makona ari padyo e30 madhigirii (2 kuruboshwe uye 2 kurudyi) kubva mumitsetse yakatwasuka toisa mapoinzi.
4. Isu tinodhirowa mitsetse pakona kune dzakatarwa pfungwa kubva kune dzepakati. Iyi mitsetse ichashanda sechinongedzo chekuisa iyo “antennae”.

Tichifunga nezve hafu-kureba kweiyo wave cross chikamu che 0.15 m, isu tichaongorora sarudzo mbiri dzekugadzira yakazvimirira yeantenna yakadaro.

Kugadzira kushandisa simbi yekusimbisa

Muchiitiko ichi, kuvakwa kwechimiro kunotora nguva shoma shoma. Zvigadzirwa zvesimbi zvinogadziriswa zvakafanana padanda rehuni. Nokuda kweizvi, 4 zvidimbu zvesimbi zvinoshandiswa (zvinozobatanidzwa) kana waya. Kuti uone iyo markup yeTE, zvinodikanwa kuti furemu yehuni irambe yakavhurika. Nzvimbo dzekunamatira antenna dzichashanda semapoinzi makuru pamarkup, uye mitsetse yakadhirowewa pakona ichashanda senzvimbo yavo. Isu tinotora waya, tinocheka zvikamu gumi nematanhatu (0.15 m imwe neimwe) nematare ekucheka uye solder antennae yakagadzirwa kubva kwavari, akaiswa muzvikamu zvina, kune zvose zvakaratidzwa.

Izvo zvinodikanwa kuti mapoka ese ezvimiro akaputirwa ne insulating tepi.

Bolting

Muchiitiko ichi, hapana kuwedzera kwesimbi kune chimiro chehuni chinodiwa – maererano naizvozvo, chigadzirwa chichave chakareruka. Tsvimbo inosarudzwa nemirairo inotevera: hupamhi – 4 cm, ukobvu – kubva masendimita 2. Kutanga, “makomba” eantennae anogadzirirwa ne drill. Izvo zvinogadzirwa padivi pechimuti pakona mukati pamwe nemutsara pane markup. Mushure mezvo, maburi anoboorwa nepakati uye kuburikidza ne tangent yemakomba. Iyo furemu yaitwa. Tinocheka zvidimbu zve 0.17 m kubva kune waya (ine margin), kudzika antennae yakagadzirwa mumakomba ne 2 cm, uye simbisa zvakasimba ne nuts uye mabhoti. Isu tinoputira antennae netambo yakaonda, batanidza mumwe nemumwe.

Kugadzira antenna nenzira iyi kunotora nguva yakawanda, asi iyo inobuda inogara yakasimba pane yakatengeswa dhizaini.

Maitiro ekugadzira bolt-on butterfly antenna inoratidzwa muvhidhiyo iyi: https://www.youtube.com/watch?v=zGpHdvDyt6s

Antenna N. Turkina yekugamuchira terevhizheni yedhijitari

Chishandiso ichi chine zvindori zvitanhatu zvewaya yesimbi, iyo inoshanda seyakashanda vibrators uye passive zvinhu uye inogadziriswa pane dielectric gwara. Iyi antenna ine kuita kurinani kwekugamuchira pane iyo katatu sikweya, saka inowanzoisirwa kureba kugashira kweDVB-T2 masaini. N. Turkin’s antenna yakamanikana-bhendi, saka marongero chaiwo anozodiwa panguva yekuiswa kwayo. Inofanira kuiswa munharaunda umo mune imwe chete multiplex (kana paine maviri, saka anofanira kunge ari padhuze nzira). Pavanenge vakapararira pamusoro penhamba yakakura yematanho, kugamuchirwa kuchave kwehurombo. Chigadzirwa chacho chine zvikamu zvinotevera:

• dielectric tsvimbo iyo kuiswa kunoitwa;
• vatungamiri D1÷D3 ine reflector R – passive elements;
• V1, V2 – vibrators;
• ferrite zvindori (isa patambo pedyo nekubatanidza kune vibrators) – chigadziro chinoenderana.

Kubatana kweanoshanda vibrators kunobva paSwiss square: kuchinjika-kuumbwa kwekubatanidza zvindori zvine kucheka kwakadzika kubva pazasi.

Kuisa iwe unoda:

• sarudza iyo DVB-T2 frequency renji;
• ita kuverenga kwakarurama kwehukuru hwechigadzirwa;
• ita zvikamu, solder dunhu remagetsi.

Iyo yekutanga frequency data uye nhamba dzechiteshi chekuverenga dzinogona kuwanikwa pamasevhisi eDVB-T2 terevhizheni vanoshanda. Tichatarisa terevhizheni yedhijitari pachiteshi 40, frequency ye626 MHz. Distance (L) pakati zvinhu – 29, 72, 96, 60, 96 mm (total – 353 mm). The circumferences i 470, 465, 460, 484, 489, 537 mm.
Tasarudza pamaparameter, ngatitangei kushanda:

1. Isu tinosarudza bhari yehuni (kureba kwayo kunofanira kuva zvishoma kudarika 353 mm) kune insulating tsvimbo, waya yemhangura (zvichida 2.5 sq. Mm. Uye 4 m kureba).
2. Tinocherechedza maburi ayo zvindori zvichange zvakasungirirwa, uye zviboora.
3. Isu tinogadzira inoshanda vibrator uye passive zvinhu. Isu tinocheka mhangura yemhangura pamwe chete nedenderedzwa remhete imwe neimwe. Tinokotamisa zvikamu zvose muzvindori. Kune vanoshingaira vibrators, migumo yezvindori inogadzirwa negomba, saka tinowedzera kureba kwezvikamu ne 8 cm, tinozvikotamisa pakona yakarurama kune rumwe rutivi. Isu tinotengesa kuyambuka kusvika pakutanga kweinotevera.
4. Isu tinoita kuti cascades yezvinhu zvipfupi zvipfupi, tozoaisa pane dialectical tsvimbo. Isu tinotengesa mhete inopera.
5. Isu tinoisa vatungamiriri munzira. Isu tinopfuura jumper yakagadzirwa nemhangura yakaonda, shandisa mhete ye vibrator kumativi ose maviri. Tinoputira jumper pamusoro penzvimbo yakakanyiwa kumativi ose maviri uye kuitengesa.
6. Kuisa vibrators.
7. Isa reflector.
8. Isu tinobatanidza tambo.
9. Isu tinotarisa hutano hwekugamuchira.

Usati watanga kugadzira antenna yedhijitari TV, unofanirwa kuziva kuti ndeipi ichagamuchira zvakanyanya iyo DVB-T2 fomati. Mushure mekuongorora akati wandei emhando antennas epamba, unogona kusarudza yakanakisa sarudzo yenyaya yako.