AM transceiver 27 MHz. Scheme, description

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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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AM transceiver 27 MHz. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / Civil radio communications

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An example of an AM radio station at 27 MHz is presented, providing a communication range at a distance of 1-2 km.

Elements for the AM transmitter circuit:

R1=lK, R2=75, P3=3.3k, P4=1.2k, P5=68k, P6=3,3k, P7=240k, P8=39k P9=2,4k, R10=3,9, 11K, R510=12, R3.3=13K, R10=14K, R100=15, P3,9=16K, R240=17K, R1=XNUMXK;

C1=150, C2=120, C3=10n, C4=30, C5=10n-33n, C6=68, C7=200, C8=20, C9=0,1, C10=20uF, C11= 0,022, C12=100-300, C13=1 n, C20, C15=15-30, C16=1 n, C17=1 n, C18=0,1, C19=5 uF, C20=10 n-33 n, C21=10uF, C22=20uF;

T1 - KT603, T2, T3, T4, T5 - KT3102, KT315, T6 - KT361.

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