Maitiro Ekugadzira Redhiyo yeFM Kubva Pakarepo
Kuvaka redhiyo yeFM kubva pakutanga ipurojekiti inonakidza uye inodzidzisa yekuzvigadzirira. Hazvingokubatsiri chete kunzwisisa misimboti yemagetsi asiwo zvinopa ruzivo rwetekinoroji yekutepfenyura. Muchinyorwa chino, tichakurukura matanho akadzama ekugadzira redhiyo yako yeFM, kubva pazvinhu zvinodiwa kusvika pakugadzwa kwekupedzisira uye kuyedzwa.
Zvinodiwa Zvikamu
Usati watanga, gadzirira zvese zvinodiwa. Heino runyorwa rwezvinhu zvinodiwa:
1. IC (Integrated Circuit) FM Tuner: Yakadai seTDA7000 kana TEA5767.
2. MaCapacitor: MaCapacitor akati wandei ane kukosha kwakasiyana zvichienderana nehurongwa hwedunhu hwashandiswa.
3. MaResistors: Makoshero akasiyana-siyana eResistors ekugadzirisa dunhu.
4. Inductor: Dzimwe nguva zvinodikanwa kugadzirisa frequency.
5. Variable Capacitor yekugadzirisa mafrequency.
6. Antena: Kureba uye mhando zvinosiyana.
7. Simba remagetsi: Kazhinji 5V kusvika 12V.
8. PCB (Printed Circuit Board) kana bhodhi rekugadzira chingwa.
9. Sipika kana Earphone yekuburitsa ruzha.
10. Tambo nemidziyo yekusonesa yekubatanidza zvikamu.
Kuronga Madunhu uye Marongero
Danho rekutanga mukugadzira redhiyo yeFM kugadzira hurongwa hwemagetsi. Pano, tichashandisa TDA7000 IC semuenzaniso nekuti isarudzo yakakurumbira yemapurojekiti eredhiyo yeFM eDIY.
Chirongwa Chekutanga
Heino hurongwa hwekutanga uchishandisa TDA7000 IC:
1. IC TDA7000 ndiyo chinhu chikuru chinoshanda mabasa akawanda, kusanganisira kuwedzera masaini uye kuona mafrequency.
2. Zvirambidzo nema capacitor zvichashandiswa panzvimbo dzakasiyana-siyana kugadzirisa frequency uye signal gain.
3. Antena yakabatana neIC input kuti igamuchire masaini eFM.
4. Potentiometer inogona kushandiswa kugadzirisa frequency.
5. Variable capacitor yakabatana kuti igadzirise frequency zvakanaka.
6. Maspika kana maEarphone zvakabatana ne output kuti zviteerere nhepfenyuro dzeredhiyo.
Kufungidzira Kakawanda
TDA7000 IC inoshanda muhuwandu hwemafrequency eredhiyo yeFM (88-108 MHz). Iva nechokwadi chekuti ma capacitor nema inductors akasarudzwa kuti abvumire kugadziriswa muhuwandu uhwu. Shandisa maturusi kana ma power circuits anokurudzirwa mu datasheet reIC kuti ugadzirise zvakanaka.
Gungano reDunhu
Kuungana Kwematanho Nematanho
1. Kuiswa kweChikamu:
– Isa zvese zviri muPCB kana pabhodhi rekugadzira zvichienderana nehurongwa hwakagadzirwa.
– MaAntena anowanzoiswa akasiyana kuti aderedze kukanganiswa.
2. Kubatanidza:
- Tanga nezvinhu zvidiki zvakaita se resistors nema capacitors.
- Ita shuwa kuti zvese zvinobatanidzwa zvakasungirirwa zvakanaka kudzivirira mashort circuits kana connections.
3. Kubatana kweAntena:
– Batanidza antenna kune IC input. Kureba uye rudzi rweantenna zvinogona kukanganisa kunaka kwekugamuchira masaini.
4. Simba remagetsi:
– Batanidza sosi yemagetsi sezvinodiwa neIC. Mazhinji maTDA7000 FM IC anoshanda zvakanaka pa5V kusvika 12V.
Zvirongwa zveTunig
1. Simba rekushandisa:
- Shandisa potentiometer kuti uwane uye uise frequency chaiyo.
2. Muchina wekugadzirisa zvinhu unoshanduka:
- Shandisa shanduko ye capacitor kuti ugadzirise frequency zvakanaka.
Kuedzwa Kwekutanga
1. Kuvhura Circuit:
– Batidza mudziyo wekushandisa wotarisa kana paine ruzha kubva kuspika kana kuti earphone.
2. Kugadziriswa kweMafambiro:
– Tenderedza potentiometer woona kuchinja kwemafrequency. Nhepfenyuro yeredhiyo inofanira kuoneka neruzha rwakajeka kana kugadzirisa kwacho kwaitwa nemazvo.
3. Kuedzwa kweAntena:
- Edza mhando dzakasiyana dzeantenna uye kureba kuti uwane mukana wekugamuchira masaini akanakisa. Nzvimbo yeantenna inogonawo kukanganisa mukana wekugamuchira masaini.
4. Tarisa Ruzha:
- Iva nechokwadi chekuti ruzha rwuri kuburitswa rwakajeka uye tarisa kuti hapana here kana kuti hapana ruzha rwakakanganiswa.
Kuvandudza uye Kushandisa
1. Kurongedza:
- Kana zvese zvikafamba zvakanaka, unogona kutanga kuunganidza zvese zviri mubhokisi kuti riite serakacheneswa uye rakachengetedzwa zvakanyanya.
- Shandisa zvinhu zvakanaka zvinodzivirira kupisa kuti usashandise ma "short circuits".
2. Kutarisira Kugoverwa Kwemagetsi:
– Kana uchishandisa bhatiri, iva nechokwadi chekuti voltage inoenderana nezvinodiwa. Unogona kuwedzera voltage regulator kana zvichidikanwa.
3. Zvimwe Zvinhu:
- Kuti uwedzere kunaka, unogona kuwedzera LCD kana LED kuratidza frequency iri kunzwika.
- Kuwedzera kugadzirisa kwedhijitari uchishandisa microcomputer yakaita seArduino kunogonawo kushandiswa pakugadzirisa frequency kwakanyatsojeka.
Mhedziso
Kuvaka redhiyo yeFM kubva pakutanga kwakaoma asi kunopa mubairo mukuru. Hauzongodzidzi zvakawanda nezvemagetsi chete, asiwo uchawana kunzwisisa kwakadzama kwekuti maredhiyo anotumira nekugamuchira anoshanda sei. Nezvinhu zvakakodzera uye ruzivo rwekutanga rwemagetsi, chero munhu anogona kuvaka redhiyo yeFM inoshanda. Yeuka, kuchengetedzeka kwakakosha mumapurojekiti ese eDIY, saka iva nechokwadi chekuti kubatana kwese kwakachengeteka uye hapana njodzi ye "short circuits" dzinogona kukonzera kukuvara kana moto. Rombo rakanaka!
