Maitiro ekugadzira DIY 2 Meter J-pole Antenna

Kana iwe uchitsvaga yakaderera-mutengo, uye zvakare nyore kuvaka antenna, iyo J-pole antenna yakanaka! Mukati menguva yemaawa, pamwe chete nemadhora gumi nemashanu ezvigadzirwa, unogona kuve nekuita kunoshamisa kuita omnidirectional j-pole antenna.

Iyo j-pole antenna inowanzo guma yakadyiswa hafu wave dipole iyo inoshandisa 1/4 wave yakapfupika inoenderana stub sechinhu chinopikisa chinoshandura. Iyo j-pole antenna inoburitsa zvishoma pane 3 DB yekuwana omnidirectionally.

Chigadzirwa chandakasarudza kugadzira iyo j-pole antenna yaive 3/4 inch yemhangura pombi yakashandiswa kugadzira pombi dzemvura. Heano zvirongwa zvekugadzira 2 mita J-pole antenna:

Izvo zviyero zviri pamusoro zveJ-pole zvinoramba zviri mumainch. Zviyero pakureba kwese, pamwe nekureba kwestub kunobva pakati peiyo pombi inotsemuka (yakatwasuka) kusvika pamusoro peantenna. Iyo Link pachiyero ndeye 2 1/4 inches kubva pamusoro peiyo yakachinjika mutori wechikamu kusvika padanho rekubatanidza. Mutsara uri pakati pechikamu chikuru chej-pole centreline pamwe netuning stub centerline ndeye 2 ″. Ndakacheka saizi yeRG-8X foam coax kusvika pakureba kwe67 ″ yefodya, uye coil up 4 inotendeuka (idiki sezvaungaiwana) ichangonyorwa pazasi chikamu chakatwasuka chechikamu chinofananidza. Izvi zvichanyatso bvisa mutsara wekudya kubva kune j-pole antenna, pamwe nerubatsiro rwekupa kumwe kuchengetedza mheni. Batanidza iyo yepakati conductor yecoax kune yekutanga chikamu, uye gadhi kune tuning stub yej-pole.

Mumativi ese ari pamusoro, anofanirwa kufungwa nezvekutanga mapoinzi ekuvaka j-pole. Ini kwechinguva ndinonamira coax ndichishandisa 1 inch hose clamps, pamwe nekugadzirisa coax yekubatanidza kutanga kune yakaderera SWR. Kubva ipapo, ndinogadzirisa urefu hwechinhu chikuru cheJ-pole. Mushure mezvo ini ndinotanga pamusoro nekugadzirisa zvakare coax link.