Phone FM Transmitter

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Posted in category: Electronics at: February 22, 2012 by nuG

telephone line, record conversations, rf signal, fm receiver, fm transmitter, This Phone FM transmitter connects in series to your telephone line and transmits the telephone conversation over the FM band when you pick up the telephone handset. Transmitted signal can be tuned by any FM receiver. The circuit includes an “On Air” LED indicator and also provides a switch which can be used to turn off the transmitter. A unique feature of the circuit is that no battery is needed to operate the circuit since power is taken from the telephone line.phone FM Transmitter,telephone line, record conversations, rf signal, fm receiver, fm transmitter, The transmitter uses only a short piece of wire aerial about 4″ / 10 cm long to transmit the signal and some of the RF signal is also radiated through the telephone line itself. The circuit might be used to share or record conversations, but is not intended for illegal use. 

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