Special electronic

technique for overhearing (for educational purpose)
unconventional operative electronics
MINIDICTAPHONES

Low-noise microphone preamplifier with automatic volume control and with microphone Knowles - more...

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Active equipment inteded for protection against overhearing - more...

defense generators GSM, UMTS-3G,...
power broadband generators for protection of convoys...

RF accessories for measuring purposes and radiomonitoring - more...

low-noise broadband preamplifier
linear power broadband amplifier
broadband antennae - LPDA and directional
band-pass filters and filters