TK-2107 CIRCUIT DESCRIPTION 1. Frequency configuration The PLL circuit in the transmitter generates the necessary The receiver utilizes double conversion. The first IF is frequencies. Fig. 1 shows the frequencies. 38.85MHz and the second IF is 450kHz. The first local oscillator signal is supplied from the PLL circuit.
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TK-2107 PC BOARD VIEW TX-RX UNIT (X57-6020-21) Component Side View TX-RX UNIT (X57-6020-21) Component Side View R541 J72-0686-02 R535 C529 C523 R538 C502 F500 L401 D500 Q503 R416 C522 R530 R401 R405 R507 R417 C521 C408 C524 C520 R528 C418...