Vintage Gallery

The Spectrum-Analyzer FSC3000 finds and analyses unknown and undesired signals. Its job is to avert bugging operations by tracking down "mini-spy" transmitters (bugs) successfully, reliably and quickly.

A bugging device in the same room is automatically discovered and can be pinpointed with the aid of a handprobe.
The case offers the possibility of also receiving, viewing, analyzing and classifying extremely weak signals.
With the help of optional additional equipment, the case can be used to track down VLF carrier frequency systems, infra-red transmitters and tape recording equipment.
The equipment can be operated with just a few buttons and is menu-driven. That way the case can be used successfully in practice by lesser-qualified technical staff.

Technical Specification

The equipment is controlled by a micro-processor and contains search receiver, code sound receiver, sound correlator, monitor, receiving aerial, handprobes, printer interface as well as an expansion port.

Description of the spectrum

The equipment has a LCD monitor with white background illumination, which allows the whole frequency spectrum of the freely-selected partial areas to be observed. The current, constantly changing frequency spectrum is displayed.

Demodulation

The content of the carrier can be acoustically controlled through the built-in loudspeaker or via headphones, allowing the possibility of listening in more quickly on a freshly-discovered signal.
During the acoustic carrier check, changes in the spectrum continue to be displayed in quasi-real time.

Automatic recognition

The case has a comprehensive measuring technique for automatically detecting a bugging device in the same room.

Sonic Labeling

Controlled by a micro-processor, the receiver is fully automatically tuned through the whole frequency range and/or a freely-selectable starting frequency. The built-in sound generator radiates a beat-note and loads the microphone of any mini-transmitter which is in the room. The receiver checks all incoming carrier signals for the presence of the beat-note. If the beat-note has been received, the search is stopped and a selective succession of sounds are emitted. If this is also recognised, it is certain that a bug is in hearing range of the sound generator and was modulated by the selective succession of sounds. An optical and acoustic alarm is triggered.

You can follow the course of the search process on the digital frequency display and read the transmission frequency of the detected mini-transmitter.

Fast Detect:

The "Fast Detect" function enables fast detection, i.e. approx. 10 sec/1000 MHz, of FM or AM-modulated monitoring transmitters. Every carrier capable of reception is subjected to a selective sound analysis. If a bug is detected in this way, the equipment searches for the spectral components of the carrier which supply the best demodulation.

Deep Detect:

This method of detection searches the whole frequency range for monitoring transmitters of diverse modulation, also taking weak signals in particular into consideration. Each carrier is subject to several methods of detection, thus minimizing the probability of not being detected.

  Sweep function

  Sweep funktion with Scope

  Sweep funktion with FFT

  Sweep function with Waterfall diagram