Maitiro ekugadzira J-Pole Antenna ye70cm Ham Band

Heino inodhura-inoshanda J-pole antenna iri nyore kugadzira. Mukati menguva yemaawa, pamwe nepamusoro pemadhora gumi akakosha emidziyo, unogona kuve neanoshamisa kuuraya omnidirectional j-pole antenna. Iyi antenna yakavakirwa pamafungiro akafanana neangu 10 Meter J-Pole zvirongwa zvekuvaka. Iyo j-pole antenna ndeyekupedzisira inodyiswa makumi mashanu muzana wave dipole iyo inoshandisa iyo 2/1 wave yakapfupika inoenderana stub senge insusceptibility transformer. Iyo j-pole antenna ichanyatso kuburitsa zvishoma pane 4 DB yekuwana omnidirectional.

Zvinhu zvandakatora kugadzira j-pole antenna yaive 1/2 inch yemhangura pombi yakashandiswa kugadzira pombi dzemvura. Heano maitiro:

Izvo zviyero zviri pamusoro zveJ-pole zviri mumainch, uye zvakare hazvina kujairika kune 440 mHz. J-pole antenna. Izvi ndizvo zvakatora kuti ndiwane SWR yakaderera. Zviyero pahurefu hwakajairika, uye saizi ye stub inobva pakati pepombi yekuparadzanisa (yakatwasuka) kusvika kumusoro kweantenna. Iyo Link pachiyero ndeye 1 1/2 inches kubva pamusoro peiyo yakachinjika mutori wechikamu kusvika padanho rekubatanidza. Mutsara uri pakati pechikamu chekutanga chej-pole centerline uye kugadzirisa stub centerline ndeye 0.75 ″.

Ndakacheka saizi yeRG-8X foam coax kusvika saizi ye67 ″ yefodhi, uye zvakare coil up 4 inotendeuka (idiki sezvaungaiwana) ichangobva kunyorwa pazasi chikamu chakachinjika chenzvimbo inofananidzwa. Izvi zvichanyatso bvisa mutsara wekudya kubva kune j-pole antenna, uye zvakare kubatsira kupa kumwe kuchengetedzeka kwemheni. Batanidza mugadziri weiyo coax kune chinhu chikuru, uye zvakare nhovo kune tuning stub yej-pole. Kuzadzisa chiyero ichi, ini ndinoshandisa 1/2 ″ pombi Tee, uye zvakare "Steet Arm joint". Ndisati ndaagadzira mumwe nemumwe, ndakacheka pombi yeexess pajoint pamberi pegungano.

Ini ndinonamatira kwenguva pfupi iyo coax ichishandisa 1 inch chubhu clamps, uye gadzirisa iyo coax link kutanga kune inodhura zvakanyanya SWR. Kubva ipapo, ndinogadzirisa hurefu hwechinhu chikuru cheJ-pole. Mushure mezvo ini ndinotanga pamusoro nekugadzirisa zvakare coax yekubatanidza.

Chinhu icho chinogadzirisa stub chinobatanidza kune chikuru chinhu ndeye j-pole antenna's ground factor. Ndicho chikonzero iwe unogona kuzviita chero rudzi rwehurefu. Iro zano rakanakisa rekupa ivhu pazasi. Izviwo zvechokwadi zvichabatsira nekuchengetedzwa kwemheni. (inopihwa shongwe yako yakavakirwa zvakakodzera!) Ingoshandisa rosin-core solder. Usashandise "pombi solder", acid-core solder, kana pombi paste. Asidhi iri mumidziyo iyi inopwanya iyo solder joint kana magetsi aripo achipfuura napo.

Heino mufananidzo we70 centimita j-pole antenna yandinoshandisa:

Izvi zvave zviri pamusoro pe7 makore. Iwe unogona kuona kuti pombi inoshandura sei dema kubva mumamiriro ekunze. Izvi zvakajairika, uye zvakare hazvikuvadze kuita kweantenna zvachose.