Mukati
Mudzimba dzezhizha, chiratidzo cheterevhizheni hachiwanzo kugamuchirwa pasina kukwidziridzwa: iri kure zvakanyanya kubva kune inodzokorora, nzvimbo yacho kazhinji haina kuenzana, uye miti inopindira. Kune yakajairika mhando ye "mufananidzo", antenna anodiwa. Chero ani anoziva kubata simbi yekunyungudutsa zvishoma zvishoma anogona kugadzira antenna yekupa nemaoko ake. Aesthetics kunze kweguta haina kupiwa kukosha kwakanyanya, chinhu chikuru ndechekugamuchira, dhizaini iri nyore, mutengo wakaderera uye kuvimbika. Unogona kuedza uye kuzviita iwe pachako.
Antenna yeTV iri nyore
Kana iyo inodzokorora iri mukati me30 km kubva kune dacha yako, unogona kuita iyo iri nyore kugamuchira chikamu mukugadzira. Aya machubhu maviri akafanana akabatanidzwa netambo. Kubuda kwetambo kunodyiswa kune inopindirana yekuisa yeTV.
Chii chaunoda kugadzira iyi TV antenna
Chekutanga pane zvese, iwe unofanirwa kuziva kuti inguva ipi iri padyo neTV shongwe iri kutepfenyura. Kureba kwe "ndebvu" kunoenderana nehuwandu. Iyo bhendi yekutepfenyura iri pakati pe50-230 MHz. Yakakamurwa kuita 12 chiteshi. Imwe neimwe inoda hurefu hwayo hwemachubhu. Rondedzero yezviteshi zveterevhizheni zvepanyika, mafambisirwo azvo uye maparamendi eiyo antenna yeterevhizheni yekuzvigadzira ichapihwa mutafura.
| Chiteshi nhamba | Channel frequency | Vibrator kureba - kubva kune imwe kusvika kune imwe magumo emachubhu, cm | Kureba kwetambo dzekufananidza mudziyo, L1/L2 cm |
|---|---|---|---|
| 1 | 50 MHz | 271-276 ona | 286 cm / 95 cm |
| 2 | 59,25 MHz | 229-234 ona | 242 cm / 80 cm |
| 3 | 77,25 MHz | 177-179 ona | 187 cm / 62 cm |
| 4 | 85,25 MHz | 162-163 ona | 170 cm / 57 cm |
| 5 | 93,25 MHz | 147-150 ona | 166 cm / 52 cm |
| 6 | 175,25 MHz | 85 masendimita | 84 cm / 28 cm |
| 7 | 183,25 MHz | 80 masendimita | 80 cm / 27 cm |
| 8 | 191,25 MHz | 77 masendimita | 77 cm / 26 cm |
| 9 | 199,25 MHz | 75 masendimita | 74 cm / 25 cm |
| 10 | 207,25 MHz | 71 masendimita | 71 cm / 24 cm |
| 11 | 215,25 MHz | 69 masendimita | 68 cm / 23 cm |
| 12 | 223,25 MHz | 66 masendimita | 66 cm / 22 cm |
Saka, kuti ugadzire antenna yeTV nemaoko ako, unoda zvinhu zvinotevera:
- Iyo pombi yesimbi ipfupi 6-7 cm pane inoratidzwa patafura. Material - chero simbi: ndarira, simbi, duralumin, etc. Diameter - kubva 8 mm kusvika 24 mm (kazhinji kuisa 16 mm). Mamiriro ezvinhu makuru: zvose "ndebvu" dzinofanira kunge dzakafanana: kubva pachinhu chimwe chete, kureba kwakafanana, kubva papombi yehupamhi hwakafanana nehupamhi hwemadziro.
- TV tambo ine 75 ohm impedance. Kureba kwayo kunotarirwa munharaunda: kubva kune antenna kuenda kuTV, pamwe chete nemamita nehafu yekusagika uye hafu yemamita kune inoenderana loop.
- Chidimbu chakakora textolite kana getinax (inenge 4 mm gobvu),
- Zvisungo zvinoverengeka kana zvimedu zvesimbi kuchengetedza mapaipi kune mubati.
- Antenna tsvimbo (metal pombi kana kona, ine kwete yakanyanya kureba - danda rehuni, nezvimwewo).
Antenna iri nyore yekupa: kunyange mwana wechikoro anogona kuzviita nemaoko ake
Zvingave zvakanaka kuve nesimbi yekunyunguduka, flux yesolder mhangura uye solder paruoko: zvinokurudzirwa kutengesa zvese zvinongedzo zvepakati conductors: chimiro chemufananidzo chichava nani uye antenna ichashanda kwenguva refu. Nzvimbo dzekutengesa ipapo dzinoda kuchengetedzwa kubva kune oxidation: zvakanakisisa kuizadza nemucheka wesilicone, unogona kushandisa epoxy, etc. Sechisarudzo chekupedzisira, chisimbise ne tepi yemagetsi, asi izvi hazvina kuvimbika.
Iyi antenna yeTV yepamba, kunyangwe kumba, ichagadzirwa nemwana. Iwe unofanirwa kucheka chubhu yehurefu inoenderana neyekutepfenyura frequency yeanodzokorora ari padyo, wobva waicheka nepakati chaizvo.
Kurongeka kwegungano
Machubhu anokonzeresa akatsikirirwa kune rumwe rutivi. Nezvigumo izvi zvakabatanidzwa kune mubati - chidimbu che getinax kana textolite 4-6 mm gobvu (ona mufananidzo). Machubhu akaiswa kure ne 6-7 cm kubva kune mumwe nemumwe, magumo avo ari kure anofanira kunge ari kure kunoratidzwa mutafura. Izvo zvakagadzirirwa kune chibatiso nezvisungo, zvinofanirwa kubata zvakasimba.
Iyo yakasimwa vibrator inogadziriswa pane mast. Iye zvino unoda kubatanidza "ndebvu" mbiri kuburikidza nechigadzirwa chinoenderana. Iyi tambo yetambo ine kuramba kwe75 ohms (rudzi RK-1, 3, 4). Maparamita ayo anoratidzwa muchikamu chekurudyi chetafura, uye maitirwo acho ari kurudyi rwemufananidzo.
Iyo yepakati macores etambo yakashongedzwa (yakatengeswa) kune yakatsetseka magumo emachubhu, braid yavo yakabatana nechidimbu cheiyo conductor. Zviri nyore kuwana waya: cheka chidimbu kubva kune tambo zvishoma kudarika saizi inodiwa uye usunungure kubva kune ese mabhomba. Bvisa migumo uye screw kune tambo conductors (zviri nani kutengesa).
Ipapo maconductor epakati kubva pazvidimbu zviviri zvechitsiko chekufananidza uye tambo inoenda kuTV yakabatana. Chirukwa chavo chakabatanidzwawo netambo yemhangura.
Chiito chekupedzisira: loop iri pakati yakasungirirwa kubhari, uye tambo inodzika pasi inoputirwa kwairi. Iyo bhari inosimudzwa kuhurefu hunodiwa uye "tuned" ipapo. Vanhu vaviri vanodiwa kumisikidza: mumwe anoshandura antenna, wechipiri anoona TV uye anoongorora mhando yemufananidzo. Waona kuti chiratidzo chinonyatso kugamuchirwa kubva kupi, iyo do-it-yourself antenna inogadziriswa munzvimbo iyi. Kuti urege kutambura kwenguva yakareba ne "tuning", tarisa uko vanogamuchira vavakidzani (terrestrial antennas) vanotungamirirwa. Iyo yakareruka antenna yekupa nemaoko ako pachako inogadzirwa. Seta uye "bata" kutungamira nekuitenderedza pamwe neaxis yayo.
Tarisa vhidhiyo yenzira yekucheka coaxial tambo.
;
Loop kubva pombi
Iyi antenna yekuita-iwe-yako yakanyanya kuoma kugadzira: unoda pombi bender, asi redhiyo yekugamuchira yakakura - kusvika 40 km. Zvinhu zvokutanga zvinenge zvakafanana: chubhu yesimbi, tambo uye tsvimbo.
Iyo bend radius yepombi haina kukosha. Izvo zvinodikanwa kuti pombi ine hurefu hunodiwa, uye kureba pakati pemigumo ndeye 65-70 mm. Ose "mapapiro" anofanira kunge akaenzana kureba, uye magumo anofanira kunge akaenzana nechepakati.
Kureba kwepombi netambo kunoratidzwa mutafura. Ziva kuti inguva ipi iyo inodzokorora iri padyo newe iri kutepfenyura, sarudza tambo yakakodzera. Saw kubva pombi yehukuru hunodiwa (dhayamita inonyanya 12-18 mm, kwavari maparameter echitsiko chekufananidza anopiwa).
| Chiteshi nhamba | Channel frequency | Vibrator kureba - kubva kumucheto kuenda kune mumwe, cm | Kureba kwetambo yekufananidza mudziyo, cm |
|---|---|---|---|
| 1 | 50 MHz | 276 masendimita | 190 masendimita |
| 2 | 59,25 MHz | 234 masendimita | 160 masendimita |
| 3 | 77,25 MHz | 178 masendimita | 125 masendimita |
| 4 | 85,25 MHz | 163 masendimita | 113 masendimita |
| 5 | 93,25 MHz | 151 masendimita | 104 masendimita |
| 6 | 175,25 MHz | 81 masendimita | 56 masendimita |
| 7 | 183,25 MHz | 77 masendimita | 53 masendimita |
| 8 | 191,25 MHz | 74 masendimita | 51 masendimita |
| 9 | 199,25 MHz | 71 masendimita | 49 masendimita |
| 10 | 207,25 MHz | 69 masendimita | 47 masendimita |
| 11 | 215,25 MHz | 66 masendimita | 45 masendimita |
| 12 | 223,25 MHz | 66 masendimita | 44 masendimita |
gungano
Iyo chubhu yehurefu hunodiwa yakakotama, zvichiita kuti inyatso symmetrical pamusoro pepakati. Imwe mupendero yakatsetseka uye yakabikwa / yakavharwa. Zadza nejecha, wovhara rutivi rwechipiri. Kana pasina welding, unogona kuvhara magumo, kungoisa mapulagi pane glue yakanaka kana silicone.
Iyo vibrator inoguma inogadziriswa pane mast (tsvimbo). Izvo zvakaputirwa kusvika kumagumo epombi, uye ipapo ma-conductor epakati e-loop inofananidzwa uye tambo inoenda kuTV inotengeswa. Nhanho inotevera ndeyekubatanidza chidimbu chetambo yemhangura pasina insulation kune yakarukwa tambo. Gungano rakapedzwa - unogona kuenderera kune "kugadzirisa".
Kana iwe usingade kuzviita iwe pachako, verenga maitiro ekusarudza antenna yekupa pano.
Beer can antenna
Pasinei nokuti anotaridzika asina maturo, chifananidzo chinova nani zvikuru. Yakatariswa kakawanda. Zviedze!
Doro rinogona kubuda antenna
Kutsvaga:
- magaba maviri anokwana 0,5 litres,
- chidimbu chehuni kana epurasitiki chinenge 0,5 metres kureba,
- chidimbu cheTV waya RG-58,
- soldering iron,
- flux yealuminium (kana makeni ari aluminium),
- solder.
Nzira yekugadzira antenna kubva mumakani
Tinounganidza sezvizvi:
- Isu tinochera gomba pasi pechirongo zvakanyatsonaka pakati (5-6 mm muhupamhi).
- Kuburikidza negomba iri tinotambanudza tambo, tinoibudisa kuburikidza negomba muvharo.
- Isu tinogadzirisa chirongo ichi kuruboshwe pamubati kuitira kuti tambo inonangidzirwa pakati.
- Isu tinobvisa tambo kubva mugaba neinenge 5-6 cm, bvisa iyo insulation neanenge 3 cm, disassemble braid.
- Isu tinocheka chirukwa, kureba kwayo kunofanira kunge kuri 1,5 cm.
- Isu tinoiparadzira pamusoro pechigadziko uye kuitengesa.
- Iyo yepakati conductor inonamira kunze ne3 cm inofanira kutengeswa kusvika pasi pegaba rechipiri.
- Nharaunda pakati pemabhangi maviri inofanira kuitwa shoma sezvinobvira, uye yakagadziriswa neimwe nzira. Imwe sarudzo ndeye inonamira tepi kana duct tepi.
- Ndizvozvo, iyo UHF antenna yekumba yakagadzirira.
Pedzisa imwe mugumo wetambo nepuragi yakakodzera, ipfekedze musoketi yeTV yaunoda. Iyi dhizaini, nenzira, inogona kushandiswa kugamuchira terevhizheni yedhijitari. Kana TV yako ichitsigira iyi masaini fomati (DVB T2) kana paine yakakosha set-yepamusoro bhokisi reTV yekare, unogona kubata chiratidzo kubva kune ari pedyo anodzokorora. Iwe unongoda kuziva kuti iri papi uye tungamira yako wega terevhizheni antenna yakagadzirwa kubva kumagaba.
Iyo yakafanana dhizaini inogona kuchinjirwa kugamuchira VHF chiteshi. Panzvimbo ye 0,5 litre zvirongo, pfeka 1 litre. Achagamuchira MW band.
Imwe sarudzo: kana iwe usina simbi yakanyungudutswa, kana iwe usingazivi nzira yekutengesa, unogona kuita kuti zvive nyore. Sunga zvigaba zviviri kure kure nemasendimita mashoma kune chibatiso. Bvisa kuguma kwetambo ne 4-5 centimita (kunyatsobvisa kusungirirwa). Iparadzanisa braid, shandura iyo musumbu, ita mhete kubva mairi, umo iwe unoisa self-tapping screw. Kubva kune wepakati conductor, ita mhete yechipiri uye shinda yechipiri self-tapping screw kuburikidza nayo. Iye zvino, pazasi pegaba rimwe, unochenesa (nesandpaper) chikwambo chaunokwenya ma screws.
Muchokwadi, solder inodiwa pakubata zviri nani: zviri nani kuisa tin uye solder mhete yakarukwa, pamwe nenzvimbo yekubatana nesimbi yemugaba. Asi kunyangwe pane-self-tapping screws zvinobuda zvakanaka, zvisinei, iyo yekubata inogaroitwa oxidized uye inoda kucheneswa. Sezvo "chando" uchaziva kuti sei ...
Iwe unogona kunge uchinetseka kuti ungagadzira sei brazier kubva mubharumu kana mbiru, unogona kuverenga nezvazvo pano.
Ita-iwe pachako digital TV antenna
Antenna dhizaini - furemu. Kune iyi vhezheni yeanogamuchira, iwe uchada crosspiece yakagadzirwa nemapuranga emapuranga uye terevhizheni tambo. Iwe uchadawo tepi yemagetsi, zvipikiri zvishoma. Zvose.
Takatotaura kuti kugamuchira chiratidzo chedhijitari, unongoda decimeter yepasi antenna uye decoder yakakodzera. Inogona kuvakwa mumaTV (chizvarwa chitsva) kana kugadzirwa sechinhu chakasiyana. Kana TV iine chiratidzo chekugamuchira chiratidzo muDVB T2 kodhi, batanidza iyo antenna inobuda zvakananga kuTV. Kana iyo TV isina decoder, unozofanira kutenga dhijitari set-yepamusoro bhokisi uye wobatanidza inobuda kubva kune antenna kwairi, uye iyo kune iyo TV seti.
Maitiro ekuona chiteshi uye kuverenga perimeter yemafuremu
MuRussia, purogiramu yakagamuchirwa, maererano neiyo shongwe dzinogara dzichivakwa. Pakupera kwa2015, nzvimbo yese inofanira kufukidzwa nevanodzokorora. Pawebhusaiti yepamutemo http://xn--p1aadc.xn--p1ai/when/ tsvaga shongwe iri padyo newe. Inoratidza frequency yekutepfenyura uye nhamba yechiteshi. Iyo perimeter yeantenna furemu zvinoenderana nenhamba yechiteshi.
Semuyenzaniso, chiteshi 37 nhepfenyuro pafrequency ye602 MHz. Iyo wavelength inoonekwa seizvi: 300 / 602 u50d 22 cm. Iyi ichava perimeter yefuremu. Ngativerengei imwe chiteshi nenzira imwechete. Ngaive chiteshi 482. Frequency 300 MHz, wavelength 482/62 = XNUMX cm.
Sezvo antenna iyi iine mafuremu maviri, kureba kwe conductor kunofanirwa kuenzana nekaviri kureba kwewavelength, pamwe ne5cm pakubatanidza:
- nokuda kwechiteshi 37 tinotora 105 cm yemhangura waya (50 cm * 2 + 5 cm = 105 cm);
- kune 22 chiteshi unoda 129 cm (62 cm * 2 + 5 cm = 129 cm).
Zvichida iwe unonyanya kufarira kushanda nehuni? Nzira yekugadzira shiri yakanyorwa pano uye nezvekugadzira doghouse - munyaya ino.
gungano
Waya yemhangura inonyanya kushandiswa kubva kune tambo inoenda mberi kune anogamuchira. Ndiko kuti, tora tambo uye bvisa sheath uye braid kubva pairi, uchisunungura wepakati conductor wehurefu hwaunoda. Chenjera kuti urege kuikuvadza.
Zvadaro, tinovaka rubatsiro kubva kumapuranga, sezvinoratidzwa mumufananidzo. Kuti uite izvi, unofanirwa kusarudza kureba kwerutivi rwechimiro. Sezvo iyi iri inverted square, tinogovanisa inowanikwa perimeter ne 4:
- yechiteshi 37: 50 cm / 4 = 12,5 cm;
- ye22 chiteshi: 62 cm / 4 = 15,5 cm.
Nhambwe kubva kune imwe mbambo kuenda kune imwe inofanirwa kuenderana neaya ma parameter. Kuiswa kwetambo yemhangura kunotanga kurudyi, kubva pakati, kudzika pasi uye mberi pamwe chete nemapoinzi ese. Chete panzvimbo iyo mafuremu anoswedera pedyo, usapfupisa makondukita. Vanofanira kunge vari kure (2-4 cm).
Kana iyo yese perimeter yakaiswa, iyo yakarukwa kubva kune tambo masendimita mashoma kureba inomonyoroka kuita bundle uye solder (ronda kana zvisingaite solder) kune yakatarisana kumucheto kwefuremu. Zvadaro, tambo inoiswa sezvinoratidzwa mumufananidzo, ichiiputira nemagetsi tepi (kazhinji, asi nzira yekuisa haigoni kuchinjwa). Ipapo tambo inoenda kune decoder (yakaparadzana kana yakavakirwa-mukati). Yese antenna yekupa nemaoko ako ekugamuchira terevhizheni yedhijitari yakagadzirira.
Maitiro ekugadzira antenna yedhijitari terevhizheni nemaoko ako - imwe dhizaini - inoratidzwa muvhidhiyo.