iindaba

Njengomsebenzi wokuzilibazisa, unomathotholo ongekahlawulwa kudala ekhuthazwa ukuba alinge nantoni na onokuba unayo. Xa [uTom Essenpreis] wayefuna ukusebenzisa i-eriyali yakhe ye-14 MHz ngaphandle koluhlu lwakhe lokuphindaphinda, wayesazi ukuba ufuna i-impedance ehambelana nesekethe. Olona hlobo luqhelekileyo luyi-L-Match circuit, esebenzisa i-capacitors eguquguqukayo kunye ne-inductors eguquguqukayo ukulungelelanisa uluhlu olusebenzisekayo lwe-frequency (resonance) ye-antenna. Nangona kungasebenzi kakuhle kolunye ulungelelwaniso oluthile, balungile ekuvaleni umsantsa phakathi kwe-50 ohm yokuphazamiseka koonomathotholo kunye nokuphazamiseka okungaziwayo kwe-eriyali.
Ngaphandle kwamathandabuzo, [uTom] ebekhangela iinxalenye kumgqomo wakhe wenkunkuma, esebenzisa iintsimbi ze-ferrite, iglu eshushu, ucingo lwemagnethi, iteyiphu yobhedu kunye nezinye iisirinji ezingaphezulu ezingama-60 ml ezivela kwirediyo ye-AM ukuze adibanise ii-capacitors kunye nee-inductors. Kunye. Unokumbona ecola embindini weplunger ukwenza indawo yentonga ye-ferrite. Gquba umphandle wesirinji ngocingo lwe-electromagnetic, ukucwangciswa kwe-ferrite kunokulungiswa yi-plunger, kwaye iimpawu zamacandelo zingatshintshwa ukulungelelanisa isiphaluka. [UTom] uxele ukuba ukwazile ukusebenzisa ituneli yakhe entsha ukusasaza bukhoma, kwaye siqinisekile ukuba uyathanda ukusebenzisa izixhobo zakhe eziphuculweyo.
Ukuba awumthandi unomathotholo ongaqhelekanga, ngoko ke sinokukutsala ngale rokethi isekwe kwisirinji, isitshixo esiprintwayo se-3D esiprintwayo se-3D, okanye isitsala esiqhutywa ngesirinji. Ngaba unayo i-hacker yakho yokwabelana? Kwimeko nayiphi na into, yingenise kumgca wokukhawuleza!
Andiyena u-HAM kwaye andazi kakhulu malunga ne-HF, kodwa ndiyazi ukuba kwezinye ii-frequency bands, amandla e-TX anokuba mkhulu, ngoko ke i-voltage kwi-eriyali iya kuba nkulu. Ngaba kunokuba yinto efanelekileyo yokufakela ityhubhu yeplastiki engasebenziyo ezaliswe ngumoya phakathi kwe-antenna tuner kunye nesixhobo sokulawula?
Uye wakhankanya imiba ethile malunga nokungasebenzi kakuhle, okungeyongxaki. Ndikhumbula kwincwadi kaDoug Demaw ukuba wathi iiferi ekugqibeleni ziziphatha njengomoya kumaza aphezulu.
Ndisebenzise intonga enjalo ye-ferrite kwi-80m fox transmitter (3.5MHz). Xa kuthelekiswa nomxube we-ferrite wefrikhwensi efanelekileyo, ilahleko ikuluhlu lwe-5 dB.
Yintoni le ntambo yombane yombane yaseMelika engaqondakaliyo ndiyibona kwi-Intanethi, kwaye inento yokwenza nemagnethi? Ngaba yenziwe ngentsimbi?
Ucingo lwemagnethi lucingo lobhedu olunomaleko obhityileyo okhuselayo. Ndicinga ukuba ithiywe ngale ndlela kuba ihlala isetyenziselwa ukwenza iikhoyili ze-electromagnetic, oko kukuthi, i-motor windings/i-coil voice coils/solenoids/ winding inductors/etc.
Okanye, ukuba ngaba awunayo isirinji, ezinye izinto zecorflute/coroplast zingasetyenziswa njengekhoyili yangaphambili kwaye i-ferrite ityibilika kuyo. Ngeenkcukacha, nceda ubone: https://www.youtube.com/watch?v=NyKu0qKVA1I
Ngokusebenzisa iwebhusayithi yethu kunye neenkonzo, uvumelana ngokucacileyo nokubekwa kwenkqubo yethu, ukusebenza kunye neekuki zentengiso. Funda nzulu