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Espionage. Radio transmitter with the low power supply (Simple Radiobug)

Espionage. Radio transmitter with the low power supply (Simple Radiobug)

On a figure the circuit of simple radiobug is represented. Power supply of circuit is 1.5 V. Radio transmitter with the low power supply (radiobug) provides the transmission of vocal signals up to 50 m. The reception of signal is conducted on the FM receiver in the range of FM 88…108 MHz. Antenna (aerial) of radio transmitter – wire long 0.2...0.3 m, with a diameter 0.5 mm. Coil L1 (without framework) has 7 coils. The standard choke L2 has the inductance 20 mH.

Radio transmitter with the low power supply (Simple Radiobug)

Literature: Magazine Радиохобби №4 1999.

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