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More than Circuit EngineeringEspionage. FM transmitter of telephone signal
Espionage. FM transmitter of telephone signal
A transmitter is used for the signal transmissions of the telephone talk on the FM receiver in a range 68 – 108 MHz. Distance of action 50 – 100 m. The coil L1 winded on a frame diameter of which is 4 mm. The coil L1 - 8 coils of the wire ПЭЛ 0.5. A wire is used as antenna (aerial). Length of wire 30 – 50 sm. Tuning of transmitter is carried out through stretching or compression of coils of the coil L1.
FM transmitter of telephone signal
Literature: Magazine Радиохобби №3 1999.
added 26.01.08 22:19:18 | 
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