Njengomsebenzi wokuzilibazisa, irediyo yezinganekwane kudala ikhuthazwa ukuthi izame noma yini ongase ube nayo. Lapho [uTom Essenpreis] efuna ukusebenzisa uthi lwakhe lwe-14 MHz ngaphandle kwebanga lokuvama komklamo wakhe, wayazi ukuthi udinga isekethe efanayo ehambisanayo. Uhlobo oluvame kakhulu isekethe ye-L-Match, esebenzisa ama-capacitor aguquguqukayo nama-inductors aguquguqukayo ukulungisa ububanzi obusebenzisekayo befrikhwensi (resonance) yothi. Yize zingasebenzi kahle kwezinye izinhlelo ezithile, zinhle ekuvaleni igebe phakathi kokuvinjelwa komsakazo okungu-50 ohm kanye nokungangeni kwe-antenna okungaziwa.
Ngaphandle kokungabaza, [u-Tom] wayefuna izingxenye emgqonyeni wakhe kadoti, esebenzisa izinduku ze-ferrite, iglue eshisayo, intambo kazibuthe, itheyiphu yethusi namanye amasirinji engeziwe angu-60 ml avela kumsakazo we-AM ukuze ahlanganise ama-capacitor aguquguqukayo nama-inductors. Ndawonye. Ungambona egaya enkabeni ye-plunger ukuze avule indawo yenduku ye-ferrite. Goqa ingaphandle lesirinji ngocingo lwe-electromagnetic, ukuhlelwa kwe-ferrite kungalungiswa yi-plunger, futhi izici zezingxenye zingashintshwa ukuze kulungiswe isekethe. [UTom] ubike ukuthi ukwazile ukusebenzisa ishuna yakhe entsha ukuze asakaze bukhoma, futhi siyaqiniseka ukuthi uyathanda ukusebenzisa okokusebenza kwakhe okuthuthukisiwe.
Uma ungawuthandi umsakazo oyimfundamakhwela, mhlawumbe singakukhanga ngale rocket esekwe ngesirinji, umshini wokubhoboza ophrintiwe we-3D oqhutshwa ngesirinji, noma isidonsa esishayelwa ngesirinji. Ingabe unayo i-hacker yakho ongabelana ngayo? Kunoma yikuphi, yithumele kulayini wokwazisa!
Angiyena u-HAM futhi angazi okuningi nge-HF, kodwa ngiyazi ukuthi kwamanye amabhendi amafrikhwensi, amandla e-TX angase abe makhulu, ngakho-ke i-voltage ku-antenna izoba nkulu. Kungaba yinto enhle yini ukufaka ishubhu lepulasitiki elingasebenzisi eligcwele umoya phakathi kweshuna ye-antenna kanye nedivayisi yokulawula?
Ubalule ezinye izinto ezithinta ukungasebenzi kahle, okungeyona inkinga. Ngikhumbula encwadini kaDoug Demaw ukuthi wathi ama-ferrite agcina eziphatha njengomoya kumaza aphezulu.
Ngisebenzise induku enjalo ye-ferrite ku-80m fox transmitter (3.5MHz). Uma kuqhathaniswa nengxube ye-ferrite yefrikhwensi efanelekile, ukulahlekelwa kububanzi obungu-5 dB.
Iyini le ntambo kagesi yaseMelika engaqondakali engiyibona ku-inthanethi, futhi ihlobene ngani nozibuthe? Ingabe yenziwe ngensimbi?
I-Magnet wire iyintambo yethusi enoqweqwe oluncane oluvikelayo oluvikelayo. Ngicabanga ukuthi ibizwa ngale ndlela ngoba ivamise ukusetshenziselwa ukwenza amakhoyili kagesi, okungukuthi, amakhoyili enjini/amakhoyili ezwi esipikha/ama-solenoid/ama-winding inductors/njll.
Noma, uma ungenayo isirinji, enye impahla ye-corflute/coroplast ingasetshenziswa njengekhoyili yangaphambili bese i-ferrite ishutheka kuyo. Ukuze uthole imininingwane, sicela ubone: https://www.youtube.com/watch?v=NyKu0qKVA1I
Ngokusebenzisa iwebhusayithi yethu namasevisi, uvumelana ngokusobala nokubekwa komsebenzi wethu, ukusebenza namakhukhi okukhangisa. Funda kabanzi
Isikhathi sokuthumela: Dec-10-2021
