Nzira yekugadzira Antenna 2 Meter Yebhasikoro Nhare?

Pamwe dambudziko hombe pakutora yako HT bhasikoro kufunga antenna yakakodzera pabhasikoro rako. Izvi zvinodaro nekuti bhasikoro haripe zvakawanda zvendege yepasi. Ini ndakawana posvo muARRL's Mazano pamwe neKinks akaumbwa naCharlie Lofgren, W6JJZ, yakanzi "The Bike 'n Walk Unique". Pazasi pane zvirongwa zveantenna yaakatsanangura mupositi.

Iyi antenna ndeye 1/2 wave yakatwasuka dipole yakavakwa yeRG-58/ U coax. Chikumbiro chekugadzirwa uku ndechekuti yakachipa, iri nyore, uye zvakare iri nyore kugadzira nezvinhu zvinowanikwa nyore. Iyo radiator inoda kuve 39 inches inoshuvira 2 metres kushanda. Chandinoshandisa kune radiator, ndiye wepakati conductor weRG-58/ U coax. Ndinotanga ne 12 foot piece ye coax. Mushure meizvozvo pane zvasara zvakakwana zvekuti inogona kumhanyiswa kusvika paredhiyo. Ndinochengeta redhiyo yangu mubhegi rangu rekubata.

Chekutanga chiyero chenguva yakareba sei iyo radiator inofanira kuva, mushure meiyo cheka kunze kwesheath, pamwe negadhi. Tevere, kune rumwe rutivi rwakasiyana rwe coax, ndakabvisa chinhu che coax icho chingangove chiri chipfupi stub. Saizi chaiyo inoenderana nekumhanya kweiyo coax inoshandiswa (ona tafura pazasi). Mumamiriro ese ezvinhu, ndinogara ndichiita hurefu kune rumwe rutivi rurefu. Nenzira iyi antenna inogona kugadzirwa mukati kune yaunoda frequency ne SWR bhiriji.

Pfupisa conductor wenzvimbo kune gadhi wecoax panzvimbo C

Zviyero zvechikamu chekufananidza zvinoenderana nevelocity factor yecoax inoshandiswa.

Kuti ubatanidze shorting stub kune feedline, nyatsobvisa nzvimbo diki yekuvharira kubva pakati conductor (hapana inopfuura 1/4 ye inch). Solder uye zvakare tepi yemukati conductor, mushure meizvozvo batanidza uye solder nhovo. Kuti uve nechokwadi chekudzivirira kwakakodzera, patsanura chimedu chepigtail kureba kuwedzera kune chinongedzo chenhoo, uye tengesa zvine hungwaru nhovo yacho pamwe chete. Pakupedzisira, sungirira antenna yako munzvimbo yakavhurika, pamwe nekuiisa mukati nemamita eSWR. Ndakaona kuti kugadzirisa kureba kweshorting stub kune imwe yeanonyanya pesvedzero mukugadzirisa minumim SWR.

Ndakatenga fiberglass bhasikoro-mureza positi kubva kuchitoro chebhasikoro, uye zvakare ndakatepa antenna kwairi. Iwe unogona zvakare kushandisa kupisa-shrink machubhu pamusoro pefiberglass pole pamwe netambo, kana ichipihwa. Ini zvakare ndinoda kunamira 2 tsoka 1/4 inch dowel pole kuzasi chikamu cheantenna. Izvi zvinobatsira kudzikamisa paunenge uchikwira, pamwe neantenna zvikwapuro zvichidzoka nekudzoka zvishoma. Imwe pfungwa inobatsira kuita kuti antenna inyanye kuomarara kutsvedza pachinhu chipfupi chechubhu yebindu uye zvakare chengetedza kuti ive nechokwadi chekuti pese pasati pambosvika bhasikoro rako rarova antenna rinobva rarova hose yebindu. Pakupedzisira, ini ndinoshandisa "bungie tambo" yakatenderedza kumashure kwangu inotakura rack uye zvakare antenna yekuwedzera rubatsiro.

Iyi antenna inogona kuvakwa mukati meawa. Ndinoshuva "kubata-ya" bhasikoro nhare rimwe zuva!