I-Discone Antenna 101 - Konke Okukukhathazayo Kuphendulwa Endaweni Eyodwa

    

Cabanga ukuthi yini ekusiza ukuthi uhlole ithrafikhi yewebhusayithi yomoya noma ulandelele amatheminali ngempumelelo? I-Discone Antenna. Okwamanje, uma ucabangela ukuthi ungezansi, sicabanga ukuthi awunalo ulwazi oluningi mayelana nale antenna.

     

Kule Discone Antenna 101, maningi amathuba okuthi sihlukanise zonke izinto ozidingayo ukuze uthole ngaleli thuluzi. Ngakho-ke, ngaphandle kwenkinga eyengeziwe, vumela ukucwila phakathi.

    

Khipha i-Antenna 101

Kulesi sihloko esifushane, empeleni sizame ukuphendula kukho konke ukukhathazeka okungenzeka mayelana ne-Discone Antenna. Ngakho-ke, ake sifinyelele kukho.

    

          

1. Isetshenziselwani i-Discone Antenna?

- Izimpondo bezilokhu ziyindlela yokuqinisekisa ukuthi ukudluliswa kwamagagasi, njengamasiginali omsakazo noma ama-microwave, angafika lapho aya khona.

   

I-Discone antenna ingolunye olunjalo. Ingase isetshenziselwe ukudlulisa imisebenzi ngendlela yesitayela se-wideband ye-omnidirectional noma ukudluliswa kwedatha, lapho inezakhiwo ezifanayo nalezo ezitholakala namanye ama-antenna ahlukahlukene kodwa kububanzi obubanzi.

    

I-antenna ye-Discone yaziwa ngamandla ayo okukopisha umumo wekhoni, okuyenza iphelele njengesamukeli somsakazo esizinjongo zonke.

    

Ngakho-ke, abantu abaningi bawasebenzisa ezinhlelweni zokuxhumana, kusukela ekuthwebuleni nasezindaweni ezijwayelekile zebhizinisi lokugada noma amasosha kuye kumamodeli ashisekayo weskena sezindawo zokuhlala ezingasetshenziswa nanoma yiluphi uhlobo lomuntu ngobuchule obuyisisekelo bokuthi zisebenza kanjani.

   

Ama-antenna e-Discone ukukhetha okujwayelekile kokujwayelekile okungaphezu kuka-30 MHz, kodwa kanye ngesikhathi, angasetshenziswa ezinhlobonhlobo ezincishisiwe ze-10-30MHz.

     

      

Le misebe ene-engeli ephansi ivelele ezinhlelweni ze-VHF/UHF uma kucatshangelwa ukuthi inokuzwela kwayo okungakholakali okuhambisanayo noma eduze nendawo yePlanethi-- futhi akukhona ekubekweni okuphakeme kwandulele njengoba kwenza iningi lezimpondo.

     

Ngasekupheleni komkhawulokudonsa wayo, nokho, kuyacaca ukuthi lokhu kuqondiswa kuya ngokuya kuphuma eksisini njengoba usondela ngakunoma iluphi uhlangothi; nokho isasebenza nokho!

     

Ngokuvamile makhulu futhi asindayo, okuwenza angafaneleki kumagajethi eselula noma aphathwa ngesandla; nokho, ukwakheka kwabo kuzivumela ukuthi zinikeze ukwamukelwa kwesignali okuhle kakhulu emazweni anqamulayo!

      

2. Isebenza kanjani i-Discone Antenna

I-antenna ye-Discone iyimodeli eyinkimbinkimbi ngokufanele, nokho ingahlelwa ngokuhlukahluka okuqondakala kalula.

        

Idiski eliyindilinga nezici zekhoni zilingisa ngokwanele amandla kazibuthe wento eyindilinga enosayizi ogcwele, njengaleyo umuntu angase ayibone phezu kwezakhiwo ezimbalwa noma phezu kwemibhoshongo emide.

         

Ngakho-ke, ngisho nangaphezulu, ama-discs adala ukulingisa okungcono kakhulu; kodwa-ke, kukhona ukuhwebelana phakathi kwezindleko zokwakha kanye nokuphikiswa komoya ngamadiski amaningi kakhulu eduze kwamanye.

       

Amadiski ayisithupha ngokuvamile azosebenza kahle-- inombolo ayibalulekile ngoba awadingi ukufanisa noma yini engaphandle kwebanga lawo.

        

Kodwa-ke, uzofisa ukuthi abekwe okungenani amafidi amabili ukusuka kwenye ukuze angaphazamisi noma yiluphi uhlobo lwekhono lamakhoni okuthola amasignali ngaphandle kokuphazamiseka.

         

        

Enqubweni ye-Discone, amandla okuphakelayo anelisa uthi lwe-RF, olungaphezulu kwendawo yekhoni.

       

Ukusuka esiqongweni kuye kwesinye, kuyenzeka ukuthi la mandla akhazimulayo aqondiswe ngempumelelo ekuqondeni noma kude nezinto ezisezweni kuncike ebangeni lazo eliphathelene nokuphakama ngaphezu kwezinga eliphansi.

       

Iphethini yemisebe ethembeke kakhulu yenzeka kuma-engeli aphansi kuyo yonke indiza evundlile enendawo yonke egcina ukuqondana kwayo naphezu kokulungiswa kokujwayelekile.

         

Noma kunjalo, lapho kucatshangelwa amafrikhwensi amakhulu, kuba khona ukuwohloka okuthile ngenxa yemiphumela yokuphazamiseka kwezindlela eziningi njengokuhlukana phakathi kwezithiyo, okuholela ekubonakaleni okuthuthukisiwe kwezakhiwo.

         

I-Discone antenna yaziwa ngokuthi i-resonant. Inephuzu lokuphakelayo ngaphezu kwayo, futhi kuleso simo, izinkinga ezikhona manje nazo zitholwa lapho.

       

Kusohlwini olungezansi kwedigri yayo encane yokuvama, ukufanisa kwe-RF kuya ku-50-ohm coax kugcina kubi kakhulu. Noma kunjalo, uma ifrikhwensi ikhuphuka ngaphezu kwalesi sici, ithola ukufana okunengqondo kuwo wonke amafrikhwensi ochungechungeni lwemisebenzi noma umthamo wokudlulisela.

     

Isitayela senza ukusetha kungabi nzima futhi futhi asibizi noma yiziphi izingxenye zangaphandle njenge-monopole tower antennas. Iphinde isindise indawo eyigugu yomhlabathi ngokuzibamba ngaphandle kwesidingo sokuxhumanisa umhlabathi.

         

Izici ezi-2 zokugcina zenza ezinye izinzuzo ngaphezu kwalezi zinhlobo kanti ezinye ezifana ne-omnidirectional half-wave dipole ngenxa yenzuzo ephezulu njengoba zinendawo engaphezulu kakhulu uma ziqhathaniswa eduze.

       

3. Ingabe I-Discone Antenna Noma Iyiphi Enhle

- Ama-antenna e-Discone ayindlela evelele yanoma yiluphi uhlobo lomsebenzisi ngesidingo somsebenzi omkhulu womkhawulokudonsa.

       

Lawa ma-antenna angakwazi ukuphatha u-10:1 webanga, awenze amasevisi aphelele ukumboza amabhendi afana nezikena kanye nezinye izinhlelo zokusebenza eziningi.

        

Ama-antenna e-Discone abonise ukuthi angcono kakhulu kunalokho okwakufunwa ngaphambili kwabathanda ukuzilibazisa noma ukusetshenziswa kochwepheshe njengoba kungase kungabi khona njalo into okungafanele bangayithumeli.

       

Uma inganikeza ukudluliswa kwezinga eliphezulu kangako kumabhendi ahlukahlukene ngokuphazamiseka okuncane okuvela emithonjeni engaphandle, lokho kungase kuzwakale ngendlela engafanele ikhwalithi ephezulu.

       

Ama-antenna e-Discone ngokuvamile awanakwa ukuze agadwe nokuskenwa komsakazo njengoba engakwazi ukuthumela.

           

             

Ngokuvamile asetshenziswa nje njengomamukeli wamagagasi e-RF, kodwa ngephethini yawo ekhazimulayo eseduze namadigri angama-360 amahle kakhulu, akukho okunye ongafisa kuwo!

      

Ama-antenna e-Discone alungele i-VHF kanye nezinhlelo zokusebenza ze-UHF ezifana namaphoyisa, izicishamlilo, uhambo lwe-geology, kanye ne-radio astronomy.

       

I-engeli yemisebe iphakamisa kancane phezulu kwezinhlobo ezivamile ze-antenna, okubonisa ukuthi ukwamukela kwayo kuthambile ekusizeni ukwambulwa kwediphozithi yemvelo ngaphansi komhlaba noma ukuthola izimo eziphuthumayo eduze; isiza futhi ukulandelela izinguquko zejoloji ebusweni boMhlaba.

         

4. Iyini Inqubo Yokusebenza Ye-Discone Antenna?

- I-antenna ye-Discone ingase ibe i-antenna ethembeke kakhulu futhi evelele kakhulu ye-superhigh frequency (RF). Isitayela siqukethe idiski, ikhoni, kanye nesivikeli sokuvikela ukudala isignali ye-RF kuyo yonke imiyalelo.

        

Ngokwemithombo ehlukene yokuthi kufanele ibukeke kanjani, ububanzi bediski ngokuvamile buwuphinda izikhathi ezingu-0.7 kunobude bayo be-quarter wavelength; uma ufuna amaza akho asuka ku-150-200 MHz, ngemva kwalokho sebenzisa amadiski angu-1 intshi anamayintshi angu-2 phakathi kwawo abekwe ngamafidi angu-8 ngokuhlukana).

       

Usayizi onengqondo walokhu kumisa kungaba yikota eyodwa ubude be-wavenge kumamitha angu-160 ubude noma amamitha angu-16 ukuphakama).

         

Ezinye izakhiwo zinama-cones angaphezu kuka-2 anqwabelene namanye abizwa ngokuthi "ama-piled discs," ngakho-ke angakwazi ukumboza amaza angama-3 kuma-watts angu-80 lilinye! Ukuphakama okuncishisiwe kuzonikeza ukujwayelekile okungcono kakhulu.

       

I-engeli yekhoni noma izigxobo ezihlanganisa i-antenna ye-Discone ingahluka kusuka kumazinga angama-25 kuye kwangama-40. Umumo, kanye nesivikelo, kudinga ukuhlukaniswa yisikhala somoya ukuze kungaxhunywana, okungase kube nokwamukela okungalungile kumafrikhwensi amakhulu.

        

      

Ezibangeni zefrikhwensi ephansi njengo-100 MHz, lapho kunokuphazamiseka okuncane ezinhlangothini zombili ze-wavelength (indawo engaphambili ayinamuntu), ukusebenza ngenzuzo kanye namandla okudlulisela kuyafana kulawa ma-antenna njengoba kwenzeka ezintini zendiza ephansi njengama-patches. .

      

Kodwa lokhu kuguqulwa uma usungene ebangeni lemvamisa ephezulu ezungeze i-1 GHz ngenxa yokuthi amagagasi kagesi azogxuma ezindaweni eziseduze eziseduze - kakhulu uma izakhiwo zazo ziguquka ngokungalindelekile ngandlela thile ngokuthile okubizwa ngokuthi "i-reflection" lapho ukukhanya kubhampa ezintweni ezahlukahlukene.

     

5. Indlela Impela Yokubala I-Antenna Ye-Discone

- Isinyathelo esiyinhloko sokwenza ikhompuyutha uthi lwe-Discone ukunquma ukujwayela okuthandwayo, okudingeka kushunwe ukuze kusebenze kahle kakhulu.

        

Okulandelayo, hlanganisa izilinganiso zawo womabili amadiski futhi uthole indawo yawo usebenzisa i-trigonometry noma uphindaphinda ubude bezinhlangothi zombili izikhathi ezingu-Pi.

       

Njengoba uneziyingi zakho ezinosayizi ohlukene emi-2 (indingilizi engaphakathi enosayizi omncane ngokuqinisekile iyohlala ingusayizi owodwa omfushane kunowangaphandle), yisikhathi sokunquma ukuthi mangaki ama-radial ngentshi ngayinye akhona ohlelweni ngalunye lokulinganisa.

       

         

Lokhu kungaqedwa kalula ngokuhlukanisa isikhathi eside ngepensela kanye nephepha: Hlukanisa amadigri angu-360 khona kanye ku-pi uze ufike empendulweni ecishe ilingane ne-1/4 yedigri; bese uhlukanisa futhi njengoba kudingekile ukuze uqinisekise ukuthi noma yiziphi izibalo eziyingxenye ngemva kwamaphoyinti edesimali ziyacisha lapho zihlukaniswa zibuyela emuva.

        

Njengamanje, hlanganisa zonke izibalo, futhi ngokuqinisekile uzothola umphumela owufunayo!

           

6. Ikhona kanye Indlela Yokushintsha I-Antenna ye-Discone

- Ukuze ulungise uthi lwe-Discone, okokuqala udinga ukuqinisekisa ukuthi ikhoni ayiphansi kakhulu futhi inendawo yokulungiswa okungeziwe kokuphakama.

            

Ukuze wenze lokhu, beka isandla sakho phezu kwekhoni ngeminwe isikhathi eside njengokungathi ubambe i-apula noma enye into eyindilinga.

        

Uma kukhona ama-voids ambalwa phakathi kweminwe yakho kanye nonqenqema oluphansi lokudla - lungashintshwa lube lukhulu.

         

         

Ngokuqinisekile uzobona ukushintsha kwezikulufu esisekelweni, ezingasetshenziswa ukuziphakamisa ngokuguqula isikrudrayiva esingakwesokunxele/kwesokudla size saneliseke ngezinga ukusuka ekubonweni okuphezulu (ungafaki ukunyakazisa ngokweqile khona lapha).

        

Uma ungeyena uchwepheshe kulo mkhakha, kungaba nzima ukunquma ukuthi ulushintsha kanjani i-antenna yakho ye-Discone. Ngenhlanhla, kunekhambi elilula: chaza ibhuku lokuqondisa elihlanganisa lolu hlobo lwe-antenna!

         

7. Ulufaka kanjani kanye Nokwenyusa i-Discone Antenna

- Ukuphakama kwe-antenna kuzokwenza umehluko ku-comms yomugqa wokubona. Ikhaya elisendleleni liwukuphazamiseka okuncane, nokho, uma uthi lwakho lungakwazi ukubona izindawo ezidlule eduze kwakho, ngemva kwalokho, lungase lungabi namandla okuthola amasiginali noma lube nohlu olwanele lokuvikela.

         

Ingase futhi ithuthukise umsindo ovela kwezinye izinsiza ezingaphazamisa ukudluliswa kwesignali kanye nokwamukela.

        

Iphuzu elingcono kakhulu kungaba indawo ephakeme kakhulu ngangokunokwenzeka, ngakho-ke akukho ukuphazamiseka nganoma yini engumakhelwane - lokhu kungahlanganisa nokususa izihlahla eduze!

         

Ungazikhathazi ngokungahambelani kokumelana. Ama-antenna e-Discone, kanye nabamukeli, abanakho okokufaka okuqhubekayo kulo lonke uhla, ngakho-ke noma yiluphi uhlobo lomehluko omncane ku-coax aludingeki.

      

Ngokuqinisekile izoba ishibhile kunezinye izintambo eziningi ezitholakala kalula esitolo sakho semishini yesifunda, okusikisela ukuthi ungayithenga ngaphandle kwe-spool ukuze wenze isitolimende sibe lula kuwena!

              

        

Yebo, uzodinga ama-adaptha ukuze ulungise izimpondo zakho ze-Discone noma izamukeli ukuze zilingane nezimbobo ezihlukene.

    

Nokho, lokhu kungukuthi, izindaba ezinhle ukuthi, inqubo elula ehlanganisa izixhumanisi ezimbili kuphela ithuluzi ngalinye (inqobo nje uma la mathuluzi enziwa phakathi neminyaka emi-5).

          

Ikhebula lethelevishini elidala le-coaxial lingasetshenziswa ukusiza ukukhulisa nokuhlukanisa amasiginali we-antenna yakho ye-Discone.

      

Izintambo ziqinile ngaphambili, nokho, zimboza ibanga lokuvama ukusuka ku-70 MHz - 800MHz (kuze kube uguquko lwedijithali), okuyinto enhle kakhulu uma ungathanda ukuthola amashaneli amaningi usebenzisa lolo hlobo lwesiginali.

       

Uma ufuna okujwayelekile okuphezulu, ithuluzi elinamandla noma elingenzi lutho elinama-amplifiers aqondiswe ezindaweni ezithile lingasebenza kangcono yingakho ulidinga!

         

8. Indlela Eqondile Yokwenza I-Discone Antenna ye-RTL-SDR

- Isinyathelo sokuqala sokwakha i-antenna ye-Discone ye-RTL-SDR ukuvikela izinto ezidingekayo, njengezintambo zethusi, izintambo zebhodi lezinkwa ezingenakuthengiswa, kanye ne-RTL-SDR. Okulandelayo, uzodinga ukwakha izinhlobo ezi-2 zamakhoyili azosebenza ngempela njengabaqondisi noma izibonisi.vakashela lesi sihloko

      

Uhlobo olulodwa lungenziwa ngokunamathisela izinto eziyisishiyagalombili ezifanayo ohlangothini ngalunye ngamayintshi angu-6 phakathi kwazo, kuyilapho ukukhetha okwengeziwe ukuthinta izinhlangothi ezingu-12 ochungechungeni, zihlukaniswe ngokufanayo ngaphezu kwamafidi angu-5.

         

          

Ukuqinisekisa noma yini enamathiselwe kahle, qaphela lapho usebenza eduze kwanoma yiluphi uhlobo lwento yensimbi, ukuze ingafinyezi lutho!

        

Izenzo zokugcina zihlanganisa ukwenza izixhumanisi ezivela kuwo wonke ama-adaptha akhipha amandla kagesi khona kanye kuzikulufu ezifakwe nezimbobo ekugcineni okuphambene lapho zixhunywe khona, bese ziwaxhuma ndawonye.

         

I-Discone Antenna vs. Dipole

Njenge-Discone, i-Dipole Antenna iyaduma futhi. Uma udidekile mayelana nokuthi ungayifuna yini i-Discone noma i-Dipole, uqonda kangcono ukuhluka kwabo kancane.

        

Khipha i-Antenna

I-antenna ye-Discone ayifani nezinye izimpondo, lapho womabili ama-cones ashintshwa ngediski. Idiski izovele ibe phezu kwekhoni eyodwa esikhundleni sazo zombili izimpondo ezi-biconical.

      

I-antenna ye-Discone yangempela ihlanganisa ikhoni yensimbi eqinile nediski. Kulokhu, ingamboza ama-octave angu-2 omkhawulokudonsa, okuwusizo kubashisekeli abafuna ukulalela kumabhendi ahlukahlukene afana no-140-500 MHz ngaphandle kokuphazamiseka kwabanye abangaphakathi kohlu olufanayo ncamashi.

      

Noma kunjalo, abantu abaningi basebenzisa amadiski anezigxobo eziwaxhumayo esikhundleni salokho njengoba ebiza kancane kunamakhoni/amadiski akhiwe ngawo wonke uhlobo olulodwa lomkhiqizo.

      

Uma kuqhathaniswa nokusebenza kahle kokulahlekelwa, lawa ma-antenna awasebenzi kangako kumafrikhwensi aphezulu afana no-54MHz uma esetshenziswa nezimpondo zesiswebhu ezime mpo.

     

Uma usebenzisa okukhulunywayo ngokuphambene nezigaxa ezenziwe ngensimbi, kunciphisa ukulayishwa komoya futhi kwenza isakhiwo nokwakhiwa kube lula. Kungakho ama-antenna e-Discone ethandwa kakhulu ngabaqhubi bemisakazo abangafundile.

       

         

Ungenza ama-spokes noma izimbambo nganoma iyiphi intambo eqinile onayo nxazonke; ngokwesibonelo, ama-brazing rods azosebenza ngendlela emangalisayo uma ungumuntu ozinikele engadini njengami!

    

Ngokuvamile zenziwa ngensimbi yeshidi eliqinile, yingakho zifaneleka kangaka kuzinhlelo ze-VHF noma ze-UHF ezenzeka eduze nezinga eliphansi, lapho kunokufinyeleleka okungcono kakhulu kwamasignali.

        

I-engeli ye-radiation iphakamisa kancane ebangeni lesilinganiso esiphezulu, okubonisa ukuthi i-Discones yenza ama-antenna e-Wi-Fi angaphakathi asabekayo ngenxa yokuthi okujwayelekile okungenantambo kuvame ukwenzeka kulo mkhawulokudonsa (UNAVCO).

        

I-Dipole Antenna

I-antenna ye-dipole iwuhlobo olujwayelekile kakhulu lwe-RF antenna. Idizayini ejwayelekile ye-dipole ingasetshenziswa yodwa, noma ingabhekana nobubanzi ukuze idale eyodwa, okuwuhlobo oluyinkimbinkimbi yokuxhumana ngomsakazo emoyeni.

      

Le antenna isetshenziswe kakhulu ku-HF, VHF, kanye nezigaba ze-UHF njengezinto ezikhazimulayo noma izici eziqhutshwayo, kuya ngokuthi yini oyidingayo ngaleso sikhathi. Kuthatha umzamo omncane ukudala leli thuluzi elilula.

       

I-antenna ye-dipole iyisitayela esiyisisekelo nesiguquguqukayo sokuthola amasiginali alinganiselayo ngokuphazanyiswa kwe-marginal.

       

Le divayisi enezigxobo ezimbili ingakwazi ukubamba amaza kusuka kokuphansi nokuphezulu, ngakho ilungele noma ubani ofuna ukulalela izingxoxo ezihlanganisa izihloko ezihlukahlukene ngaphandle kokuba nomsindo wekhwalithi ephezulu ukhuthazele noma ukubhekana nanoma yiziphi izinkinga ngenxa yokungqubuzana kokudluliselwa.

         

I-antenna enkulu ye-TV-top akuyona indawo eseduze namandla njengezinye izindlela ezithuthuke kakhulu njenge-dipole egoqiwe. Lawa ma-antenna akanzima kakhulu futhi ahlinzeka ngesilinganiso esingcono kakhulu sesignali-kuya-nomsindo kunezandulelayo.

       

Ama-dipoles agoqiwe aneziphetho ezibuyela emuva esikhungweni, esiza ukukhulisa amandla esignali - lokhu kuwenza abukeke athandeke futhi asebenze kakhulu!

        

I-half-wave, kanye ne-half-wave, i-dipoles egoqiwe, isebenza kahle kulabo abahlala emafulethini noma kuma-condominiums aphakeme. Lapho, igumbi likhawulelwe ngenxa yokuthi abalidingi lonke igumbi elizinikele ekutholeni amasiginali avela ku-antenna yesitsha noma ngaphandle kwebanga lendiza.

          

I-Discone Antenna vs. Ground Aircraft

Indiza yaphansi isebenza kangcono ezinhlobonhlobo ezishunwa kuzo, kodwa uma ubheka uhlobo oluphelele lwe-antenna, zisebenza ngokufanayo. Inkinga yokusebenzisa kokubili, nokho, yindlela abenza ngayo.

         

       

Yize sekukonke, eyodwa izoba ngcono kakhulu kunomunye kuya ngokuthi ufuna ukuthi ngamunye alalele maphi amafrikhwensi, ukusebenza kahle kwawo kungase kudlulele kakhulu, ngakho-ke akukho ukusho okungaba ngcono uma kusetshenziswana.

       

Discone Amandla we-Antenna

I-antenna ye-Discone isitayela esisebenzayo esisetshenziselwa ukudlulisa amaza asuka ku-10 kHz kuye ku-1 GHz.

           

Ingakwazi ukusebenza kahle kakhulu kunamanye ama-antenna akhelwe ama-arrays athile ajwayelekile. Kodwa-ke, kusewukhetho olusebenzayo uma udinga ukufakwa komshwalense kuwo wonke ama-octave amafrikhwensi afana namabhendi efrikhwensi ephezulu kanye nalawo anemvamisa ephansi ngokufanayo.

        

           

Izingxenye ezintathu eziyinhloko zihlanganisa i-disc, eqoqa amaza omsakazo ukuze iwathumele nge-cone, lapho ekhona ngemva kwalokho akhuliswe ngaphambi kokuba ekugcineni aphume endaweni ngosizo lwesici esisodwa sokugcina, isivikelo.

            

disc

I-disc ye-antenna ye-Discone idinga ukuba nosayizi olingana no-0.7 we-wavelength yokujwayelekile kwayo okuphansi kakhulu - lokhu kuzoqinisekisa ukusebenza kahle okuphezulu nokusebenza kahle.

              

Ngaphandle kwalokho, isici sokuphakelayo salezi zimpondo siya enkabeni, lapho ziphakelwa khona nge-coax equkethe amanethiwekhi afanayo angama-50-ohm ukuze anikeze ukuxhumana okuphelele;

            

        

Ikhondatha eyodwa ixhuma iqonde endaweni emaphakathi ngomugqa wentambo noma we-fiber optic, kuyilapho enye inweba phezulu ngekhoni, esebenza njengesitsha esikhanyayo.

       

Isigaxa

I-antenna ye-Discone yenziwe ukuthi ibe ne-engeli yekhoni ehluka kusuka kumazinga angama-25 kuye kwangama-40. Ukuncishiswa kwefrikhwensi, bukhulu ubude obudingekayo ku-quarter wavelength efanayo, okuzosho usayizi kanye nendlela efanele.

      

I-Insulator

I-antenna ye-Discone isitayela esivelele sezinhlobo zamafrikhwensi aphezulu. Ukuhlukanisa i-disc kanye nekhoni ngesivikelo kuzothinta izici ezithile ezibalulekile, ikakhulukazi kumafrikhwensi aseduze nemikhawulo yalolu hlobo lwesakhiwo somsakazo.

      

I-Discone Antenna Ukwamukela Okubi

Kuvame ukushiwo ukuthi izimpondo ze-Discone azamukeli kahle, nokho, lokhu akulona iqiniso ngempela. Imvamisa, i-antenna ye-Discone izwela kakhulu kumafrikhwensi aphezulu kunaphansi, ngakho-ke inomkhuba wokuthola amasiginali anamandla kumalungu afanayo amafrikhwensi aphezulu.

        

      

Kodwa-ke, ezinye izinto ezahlukahlukene ezidlalayo ngale kwezinga lokuzwela zikhomba ukuthi i-antenna izoba muhle kangakanani kuwe ikakhulukazi - njengokuthi ulele kuphi umbhoshongo wakho oseduze noma ukuthi hlobo luni lokuphazamiseka okungaba khona eduze (njengalezo eziphuma ezintanjeni zamandla).

         

I-Discone Antenna Frequency Variety

Ama-antenna e-Discone angama-omnidirectional kanye ne-wideband, ewavumela ukuthi amboze ama-frequency alingana nezilinganiso ze-10:1.

          

          

Lokhu kuphakamisa ukuthi i-antenna nayo iyibhande elibanzi! Ungase uthenge i-omnidirectional Discone enohlelo lwe-30-1300 MHz, iyenze ibe phakathi kwezimbalwa ezitholakalayo ngamakhono okudlulisa aphezulu.

        

Ukugoqa!

       

Hhayi-ke, lokho bekuyikho konke okuku-antenna ye-Discone 101. Njengoba ulwenze ucwaningo lwakho ngokuphelele ngale athi, ungenza izibalo zakho ngokuthi izokusebenzela noma cha.