Scheme radio: phezu chip kunye tshin elula

Eli nqaku liza kuhlolisisa isiphaluka irediyo, uhlalutyo umsebenzi zoyilo zilula. Wena sonke siyazi ukuba kukho ezininzi wavebands. Bonke bephela yahlulwe usasazo yeselula, ukusetyenziswa ezisemthethweni, kunye nerediyo engahlawulwayo. Losasazo izikhululo senziwe phakathi-lomqolo (AM, DM), elide (Lw, Lw), VHF (FM, i-FM) amaza. Ngoku uya kufunda ukuba ukwenza njani isixhobo elula ngokufumana izitishi zerediyo.

Le kakutsha radio

Kokuyilwayo ivelisa yonke ekuqaleni engahlawulwayo kunomathotholo. Kwaye ngenxa ngabayibuthayo, nokuba umntwana, ekubeni akukho nto ibitheni ngotywala. Kuba mveliso, kuya kufuneka ukuba ufumane ezi zinto zilandelayo:

1. A capacitor variable.
2. Emi phezu capacitor 4700 PF.
3. Ane ngokubhijela ukuxhathisa 1500 ohms. Ingaba Ton-2 ogqibeleleyo.
4. Semiconductor uhlobo silicon diode D9. Noko ke, ungasebenzisa nasiphi eliphezulu mihla.
5. ucingo lobhedu kunye mandrel ubukhulu ubuncinane 40 mm.

Le radio ngasentla Idayagram kunceda ukuqonda ukuba ukwenza njani ukuba zonke izinto uqhagamshelo. ingqalelo ekhethekileyo kufuneka ihlawulwe kuyilo-eriyali, emhlabeni, inductors. Kwezi zinto kufuneka ukuba kuxoxwe ngokwahlukeneyo. I radio kakutsha unako ukusebenza kuluhlu eliphakathi elide amaza, ngoko ufuna isityana epheleleyo malunga nokusebenza kwayo.

uyilo eriyali, umhlaba kunye Ikhoyili

Kwiziphaluka radio kweli nqaku wayesebenza uluhlu MW, Lw, HF, kuyimfuneko ukuba ze eriyali. Yenziwe le wire ingxenye. Ungasebenzisa yokugquma multi-core, eyona nto ibalulekileyo ukuba onendawo enqamlezileyo engumdibaniso icandelo abangaphezu kwe-0.75 macala onke. mm. Kodwa amafutha kakhulu akufuneki zisetyenziswe. Ubude le web-eriyali ezisekelwe kwi-frequency apho umamkeli kusebenza. ubude web kufuneka abe ukuphindaphinda yexabiso kwamaza, va ngeemitha. Ukuba sithetha uluhlu kweemitha ezingama-90 (3200 kHz), ubude-eriyali kufuneka ibe kwi-10 m. Limelwe ukuba irhox- nomphakamo oziimitha ezi-3 kwaye unombombiya ngenyameko iindonga, imithi kunye nezibonda.

Njengoko emhlabeni angasebenzisa umbhobho ubushushu. Nangona kunjalo, le ndlela engcono ibingaba isikhonkwane metal ezibethelelwe imitha ubuncinane enye emhlabeni. Ikhoyili ke isilonda ucingo lobhedu kuphela. Ngaphezu koko, kufuneka ukuba ibe ubukhulu obuncamisileyo 0.75 mm, ukuxhobisa ungenza inkcaso. Ikhoyili ke isilonda a mandrel esiqinileyo kosuku zibambene nayo ukholosile. Nceda qaphela ukuba kufuneka ubuncinane 90 ajike umoya, ngoko zama usike i mandrel elide kangangoko kunokwenzeka. Ezi oonomathotholo namaqhinga okulungileyo kuphela ngenxa yokuba ukuqonda ukusebenza izixhobo ezinjalo. Kodwa ubuzaza yayo esezantsi kakhulu, ngoko inokusetyenziswa ukuphulaphula kwisikhululo sikanomathotholo enamandla kuphela. Nditsho uqhagamshelwano yangaphandle ngombhobho bass akuyi kuyisindisa.

Radio kwiqhezu

Ezingasentla wesekethe serediyo a K174HA34 chip. Le nto ezincinane eziqokelelwe iindawo ezininzi - tshin, kumaza lokuguqulela, msindo umqondiso. Kakade ke, lo chip iphelelwe, kodwa nangoku kuveliswa, kwaye indleko yalo liphantsi kakhulu. Yintoni enye efunekayo ukuze ungumzondeleli wireless ekuqaleni? Ukuba nokuba ezonakalisa element, akukho lusizi. Kukho kwakhona isasetyenziswa amazwe, evumela ukuvelisa oonomathotholo ngenxa VHF, kwaye iindleko zabo ayikho ezinkulu kakhulu. Esi sikimu ulungile kuba wenza izinto hayi ezinqabileyo, kodwa unako ukufumana izikhululo zikanomathotholo kuluhlu losasazo. Enye ethile - imfuneko ukwenza msindo ezongezelelweyo ze njalo, ekubeni wesekethe imveliso umqondiso buthathaka kakhulu.

isiphelo

kuqondwe ezimbalwa kuyilo irediyo, nga phambili ukuya nokuveliswa kwezixhobo ezimbaxa ngakumbi. components Modern electronic ivumela ukuba wena nje kuphela abanye balwamkele, yokukhulisa, kunye zidlulisele kodwa kuya kuba luncedo ngexesha leeholide kwindalo, ukuze baphumeze umsebenzi wokwakha, ngokunjalo ukulawula imoto. Umzekelo, ukuba ukuphunyezwa ekuqaleni oluzenzekelayo. Ngamanye amazwi, le wesekethe radio lisebenza kangangokuba zisetyenziswa kuyo yonke indawo namhlanje.