I-balcony antenna iyindlela engcono kakhulu uma ukufakwa komgwaqo emgwaqweni ophahleni lwesakhiwo akunakwenzeka nganoma yisiphi isizathu. Iqiniso ngukuthi uphahla lwesakhiwo sefulethi luyimpahla enobumbana futhi luphethwe yinkampani yabaphathi.
Ngakho-ke, ukufinyelela kuyo kungakhawulelwa, futhi ukufaka i-antenna, kufanele uthole imvume yokuphatha inhlangano yabaphathi (okungenzeki njalo). Okuwukuphela kwendlela yokubekwa emgwaqweni yedivaysi yokuthola kuleli cala yi-balcony.
Izinzuzo ze-Street Antennas ngaphambi kwe-Indoor
Ngosizo lwe-antenna ye-balcony, awukwazi ukuthatha nje isiginali yethelevishini kanye nomsakazo kuphela, kepha futhi ubopha amateurs radio
I-Balcony Antennas ingasetshenziswa zombili ukuthola amasiginali eziteshi zethelevishini neziteshi zomsakazo kanye nokudlulisela okunjalo. Futhi kusetshenziswa i-balcony antenna antenna kungalungiswa phakathi kweziteshi zomsakazo ze-amateur.
Uma nje kubonakale, izimpondo ezenziwa emgwaqweni zisebenza kahle kakhulu ngezinto zazo zokuhlangana. Lokhu kungenxa yezici eziningi zomzimba zokusakazwa kwamagagasi omsakazo esikhaleni. Ukusakazeka kwamagagasi omsakazo egumbini elivaliwe kuhluke kakhulu ekuhambeni kwawo esikhaleni esivulekile.
Ukuphazanyiswa kungenzeka ngaphakathi, ngakho-ke i-antena ye-balcony ithatha isibonakaliso kangcono kakhulu
Ngaphakathi kwekamelo, ngenxa yokuboniswa okuphindaphindiwe kwezindonga nezinto, umphumela wokuphazanyiswa kwenzeka - ukubekwa kwamagagasi komunye nomunye. Ngasikhathi sinye, inzuzo yesiphithiphithi noma ukwehla kwesiginali kuvame ukubonwa, okuholela ekuphazanyisweni.
Ithonya ikhwalithi yokwamukelwa kwekamelo antennas ingabukeka encane kakhulu, kungabonakala sengathi izici - indawo yokufaka ye-TV noma umsakazo, oshukumisayo abantu abasegumbini, njll.
Futhi, izindonga zesakhiwo zicishwa kakhulu yisiginali yomsakazo, ikakhulukazi ezithinta ukhonkolo noma iphaneli yezindlu: ukufakwa kwensimbi okufakiwe ekwakhiweni kwezindonga nophahla. Konke lokhu ukushiyeka kungenazo izimpondo ezifakwe esikhaleni esivulekile - ngaphandle.
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Kodwa-ke, ukufakwa kwensiza etholayo ophahleni kusanda kukhawulelwa kakhulu ngenxa yokuthi balawulwa yizinkampani zabaphathi.
Ukufakwa okungagunyaziwe kwe-TV Antenna kungaholela ekuxabaneni okungathandeki nenhlangano esebenzayo.
Ngenxa yalokhu - izakhamizi eziningi ezengeziwe zezakhiwo zesimanjemanje zanamuhla zibekwe ngokwamukela izimpondo ngamakhaleri abo kanye nama-loggias.
Izici zomsebenzi we-shortwave antennas
I-antwall shortwall namuhla ingathengwa ezitolo ezikhethekile, noma izenzele ngokwakho. Kuliqiniso, ukuze idivaysi owadalile isebenze kahle, kufanele ube nolwazi oluthile lwe-elekthronikhi.
Amagagasi amafushane abizwa futhi njenge-decomellery ngenxa ye-wavelength ka-10 - 100 m. Ububanzi obuvame kwamagagasi okuqamba amagagasi busuka ku-3 kuye ku-30 Megagoz. Isici esikhulu ukuthi lapho kuboniswa kusuka ku-ionosphere futhi umhlaba amagagasi we-KV uphatha ukulahleka okuncane. Ngenxa yalokhu, bayakwazi ukusakaza amabanga amade ngokwanele, bagcina isibonakaliso esihle.
Phakathi kwezici zamagagasi e-SV, kungaphawulwa ukuthi ikhwalithi yokwamukela kwabo incike kwezinye izinto:
- izinga lomsebenzi welanga. Ukuphuma komsakazo welanga kungenza ukuphazanyiswa okuncane, kukhulisa ikhwalithi yemishini yokusingathwa;
- isikhathi sosuku. Kuyaphawuleka ukuthi amagagasi amafushane asatshalaliswa kangcono ngesikhathi esikhanyayo sosuku, ngenkathi amagagasi ebangeni elide ngenxa ye-Best;
- Izimo zezulu. Amafu aphansi nenkungu kungakwenza kahle ukuhambisa amandla okudlulisa iziteshi ze-shortwave.
Zonke izinto ezisohlwini zithintwe kakhulu yizimpondo ze-balcony. Ngakho-ke, ukubeka ukwamukelwa kwe-KV Design kuvulandi yakho, kufanele ulungele ezinye izici zomsebenzi wazo. Ama-shortwave antennas angasetshenziswa futhi ukusungula ukuxhumana ne-spacecraft ngenxa yokuthi amagagasi we-KV awakwazi ukungena emhlabeni ionosphere.
Ngalesi sizathu, amadivaysi anjalo awasetshenziselwa ukuthola isibonakaliso kusuka kuma-satellite wethelevishini. Ngesikhathi sokutholwa kwesiginali ebangeni elifushane, ezinye izinkinga zingenzeka futhi ngenxa yokuthi amagagasi we-KV asebenza kuma-trajectories ahlukahlukene. Ngenxa yalokhu, ukuvela kwe- "kuphaphama" noma ukunyamalala kwesikhashana kwesiginali.
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Kepha naphezu kwako konke lokhu kuphazamiseka okuncane, amadivaysi amafushane ahlinzeka ngezinzuzo eziningi, okukhona ukuthi kungenzeka ukuthi uthole isibonakaliso esifanelekile esivela eziteshini zomsakazo esikude kanye namathuba okuxhumana okuqhubekayo phakathi komunye nomunye.
Umhlangano nokufakwa kwe-antenna ye-shortwave
Uma unesipiliyoni esithile ku-Radio Mechanic, kungenzeka ukudala i-antenna ye-shortwave ngezandla zakho. Ake sithi sidinga idivaysi yokuthola engu-7 MHz.
Ukudala, okokuqala, sidinga ishubhu le-ferrite. Ungayithola kumakhibhodi wekhompyutha athuthukiswe kahle noma ama-Monitors. Ezintabeni lapho, ishubhu le-ferrite lisetshenziselwa ukucindezela ukungaphazanyiswa.
Njengoba kwaqashelwa uhlobo lwe-radio amateur, amashubhu anjalo e-Ferrite asabela kumagagasi obubanzi bobubanzi ngokuvinjwa okusebenzayo (ukumelana kwe-capacitive kanye nokungaqondakali) ngamandla ohlwini lwamakhulu ambalwa. Ngemininingwane esemhlanganweni nokufakwa kwe-antenna elula, bheka le vidiyo:
Lezi zakhiwo zamashubhu we-Ferrite zikuvumela ukuthi udale nge-antenna yakho ye-KV kuvulandi. Ukusuka kule tube, siqoqa i-ebanzi ye-transformer nge-coefficient yenguquko kwe-1: 1. Lokhu kuzoba yinto esemqoka ye-balcony antenna yethu yesikhathi esizayo. E-Radio Engineering, umphathi onjalo uvezwa isifinyezo se-Balun English - kusuka ekushintsheni kahle-olinganiselayo, okuhunyushwa ngokuthi "ukuguqulwa - ukuguqula okungalingani."
Ukunquma uhla olusebenzayo lwe-balun etholakele, layisha i-restiver yalo yesibili ngokusebenzisa i-50-ahm proving ngebhuloho elivame kakhulu. Uma uhla lungafani nomfuneko (7 mhz), bese sithatha enye ishubhu kuze kube yilapho sithola inkomba yemvamisa oyifunayo.
Ngemuva kwalokho, sibeka esikhundleni sokuphikisana kube ngama-halves amabili we-dipole. Ngenxa yalokhu, sithola i-dipole ye-Half-wave ubude, engenawo umsulu omaphakathi. I-Ferrite Tube inekhebula le-coaxial elinempilo ngesimo sama-hinges.
Ukugcwalisa i-sq-antenna kuvulandi
Ifomu le-SQ-Antenna lingahluka. Okuvame kakhulu:
- Inguqulo yama-mast. Kulokhu, i-antenna kuvulandi ifakwe ku-mast ethile ("induku"). Kubukeka sengathi le ndlela njengesakhiwo esijwayelekile se-antenna, enkabeni yayo etholakala i-transformer (ibhaluni), kanye nokuphambukisa kusuka ku-Dipoles ebambe amaza omsakazo. I-mast iboshwe ekubizeni kwe-loggia noma ngokuqondile, noma yenziwe ngakolunye uhlangothi. Ungafaka indawo esebenza kahle kakhulu ngendlela enolwazi.
- "Square". Le inketho esebenza kahle kakhulu yokuklama okuvumela ukuthi unyuse kakhulu ukuzwela kwensiza futhi unciphise imisindo eseceleni. Lo mklamo unconyelwe "okunomsindo" (ngomqondo wesizinda somsakazo) esisenkabeni yedolobha. I-antenna KV enjalo ingafakwa kusoftware ezicijileyo, ukunamathisela kubo noma yimuphi ama-fasteners ntombazane.
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Ngasikhathi sinye, ingxenye engezansi ye- "Square" (futhi inembe kakhudlwana - i-xample) ixhumeke ezitimeleni zocingo, idale umjikelezo onesisekelo. Ingxenye engenhla imele umgodi wangempela we-antenna. Ubude obuphelele balo kufanele okungenani babe ngamamitha ayisikhombisa. Ukuze wenze lokhu, kuzofanela ubeke umklamo uzungeze umngcele wokwethembeka kwe-loggia, ezindongeni zalo ophahleni naseceleni. Ukuthi ugibele kanjani i-antenna kuvulandi, bheka le vidiyo:
Uma ukubekwa phansi kwe-loggia yakho kuncishwe imidwebo yensimbi, ingxenye engezansi, "ebandayo" yesakhiwo, kuzodingeka ukuthi kutholwe kunoma iyiphi ingxenye yensimbi ye-balcony fittings. Uma kungekho ukukhetha ekwakhiweni komklamo we-loggia, kuzovunyelwa ukuthi "Thola" insimbi yokuqinisa nge-perforator. Enye inketho ukwenza ucingo lomhlaba efulethini bese uyixhumanisa nomjikelezo we-wiring kagesi ebekezelayo.
Lapho uxhuma umhlabathi, ulindele ukuqaphela ukugwema umjikelezo omfushane, noma ukushaqeka kukagesi.
Kepha njengoba uthathe umsebenzi ozimele wedivayisi yobuchwepheshe obuyinkimbinkimbi, njenge-Sq-antenna, bese udida "umhlaba" ngesikimu sikagesi se-wiring awusoze wakwazi.
Ngenxa yalokhu, sithola ngokuthembekile ukuthola ukwamukela - ukudlulisela i-antenna esebenza ebangeni le-shortwave ngokuvama kwe-7 MHZ. Inzuzo enkulu umsebenzi omuhle kakhulu kunoma iyiphi indawo yedolobha, yize kukhona inani elikhulu lomsindo wangemuva. Ngemuva kwakho konke, inhloso enkulu yalezo zinhlaka ukuthuthukisa ikhwalithi yamagagasi omsakazo.