The device is used for inspecting building envelope structures, walls, furniture, and interior items to detect electronic devices for covert information gathering (radio microphones, microphone amplifiers, voice recorders, etc.), in various operating modes: in transmission mode, when switched off, or in “standby” mode (for remotely controlled devices).
Distinctive features:
-
High energy potential of the device (transmitter power to receiver sensitivity ratio of +146dB) ensures effective detection of electronic devices in massive walls, including reinforced concrete, and also allows detecting concealed devices behind reinforcing mesh.
-
The device provides high search productivity for target objects. Productivity is determined by the surface area inspected per unit of time.
-
Simultaneous reception of the second and third harmonics of the probing signal, visual and audible indication of reflected signal levels, as well as an envelope analysis mode, allow the operator to distinguish signals reflected from electronic devices from signals of natural (corrosion) nonlinear reflectors.
-
A highly directional antenna system and a wide range of adjustments for the main parameters of the device provide high accuracy in locating target devices and facilitate search operations.
-
The device provides the ability to operate in conditions of interference from GSM-1800 cellular signals.
Technical Specifications:
| Specification | Details |
|---|---|
| TRANSMITTER | |
| Frequency | 860 ± 2 MHz |
| Output Pulse Power | not less than 200 W [+53 dBm] (average power not more than 0.1 W [+20 dBm]) |
| Power Adjustment Range | -(8 ± 2 dB) |
| Probing Signal Modulation Type | amplitude-pulsed (duty cycle 2350) |
| RECEIVER | |
| Frequency | 1720 MHz, 2580 MHz |
| Sensitivity (with digital processing) | not worse than -123 dB/W (-93 dBm) [at S/N ratio of 6 dB] |
| Stepped Attenuation of Input Signals | -10, -20, -30, -40, -50 dB |
| ANTENNA | |
| Polarization Type | Circular |
| Ellipticity Coefficient | not worse than 0.75 |
| GAIN: | |
| Receive Antenna Gain | not less than 6 dB |
| Transmit Antenna Gain | not less than 8 dB |
| Main Lobe Beamwidth | not more than 40° |
| Side Lobe Level | not more than -15 dB |
| INDICATION | |
| Audible | tonal signal (212 Hz) |
| Visual | 4-line LCD indicator |
| Level Indicator Dynamic Range | 30 dB |
| Displayed Information | Level of 2nd harmonic (bar graph and numeric value), Level of 3rd harmonic (bar graph and numeric value), Difference between 2nd and 3rd harmonic levels (numeric value), Current value of receiver attenuator, Output power indicator, Headphone connection indicator for 2nd or 3rd harmonic, GSM suppression mode symbol, Battery voltage |