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lugha

    kufanya 5W FM transmitter

     

    Veronica fm transmitter urahisi zinazozalishwa, imara ya utendaji, ishara ya usafi, bila kutumia sehemu maalumu na Akiwa, na sekondari kazi mtihani kutokana na kukosekana kwa vifaa vya kitaalamu kufanya kesi yako rahisi Debug. Ina matoleo mawili, 1 watt na Watts 5. 1 watt toleo kwa umbali uzinduzi 3 km, nguvu inayotakiwa ni 12-16v 200ma; 5-watt toleo kwa ajili ya mbalimbali 8 km uzinduzi, nguvu required ni 12-16v 900ma. Makala hii inaelezea toleo 5-watt.

     

    transmitter huja na mixer, hivyo pia fired kutoka cd na ishara ya kipaza sauti. Transistor t1 ni amplifier kipaza sauti, kutofautiana resistors r1 na r2 kurekebisha kiasi (tazama sehemu debugging). Kati ya oscillator r8 na c21, ni kuzalisha redio vipengele ishara ya mzunguko. Diode d1 ni kinachojulikana kama "varactor," sawa na capacitor inayoweza kubadilishwa, ambayo ina udhibiti wa ishara ya sauti, badilisha masafa ya oscillator ya oscillation, ilicheza jukumu la masafa. c12, c13, na l1 kuamua mzunguko wa oscillator. Oscillator hii ni kweli ni mbili inverting oscillator, kila mbio kuzunguka katika 50mhz, wakati watu wawili ishara ya kuchanganya, wanakuwa ishara 100mhz. Nyaya hizo ni imara zaidi kuliko oscillator moja 100mhz. Oscillator ishara kutoka t4, t6 zoom kwa 5w. T4 juu ya haki katika mzunguko ikiwa ni pamoja na vinavyolingana antenna Impedans na kupita chini ya kuchuja. d2, d3, t5 mzunguko msaidizi kinaundwa na debugging, itakuwa sampuli RF pato signal kudhibiti LED d5, pato ni ya juu, d5 pia ni mkali.

        
    mzunguko yenyewe haina kuleta moduleta Stereo, kama unahitaji kucheza mpango Stereo, tafadhali rejea hapa kufanya moduleta Stereo.

    Orodha ya sehemu

    Upinzani:
    r1 + 2 10k adjustable
    r3 820k
    r4 4.7k
    r5-7 220
    r8 1.5k
    r9 15k
    r10 + 11 1k
    r12 33k
    r13 + 14 56
    r15 + 16 68k
    r17 47
    r18 270
    r19 10
    r20 22
    r21 1.5k
    r22 270
    Capacitance: Mbali na kazi maalum, matumizi ya kauri au mica capacitor.
    c1, 2,7,
    16,17,19,
    24,29 na 31 1n
    c3-5, na 8 10u 16v electrolytic
    c6, 18 na 30 220u 16v electrolytic
    c9, 10 na 20 10n
    c11 22p *
    c12 47p *
    c13 22p krekebisha
    c14 na 15 15p *
    c21, 25 na 26 65p faini-tuning
    c22 100p
    c23 15p
    c24 33p
    c27 1.8p
    c28 5.6p
    c32 na 34 47p
    c33 22p
    c35 na 38 1n
    c36 220n
    c37 100p
    * C11, 12, 14 na 15 kuamua frequency oscillation, ni bora kutumia capacitors mica ubora.
    Coil: hakuna mifupa na aina mashimo. Kuifunga kuzunguka mduara waya ya fimbo 1mm au nyingine katika cartridge, na kisha makini aliweka kwa urefu sahihi, na kwa kutambua mbili mwisho coil inavyoonekana katika Kielelezo 2.

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    Kielelezo 2a: coil kuzunguka njia sahihi

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    Kielelezo 2b: l4, mrf237 siri
        
    Na antenna uongo mzigo

     

     

     

     

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