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homepage Covert Listening Device > Miniaturized digital bugs > Digital Line Carrier Bug
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DIGITAL LINE CARRIER BUG

Digital Transmitter

This system is designed for room monitoring and digitally encrypted transmission of the audio intelligence on subcarrier frequencies via AC 220 V, 50 Hz Mains.
The digital channel encryption keeps the transmitted data safe from interception. Analog-digital conversion is based on the adaptive-delta modulation (ADM) method.
The transmitter comes as an unpacked module, with cables for connection to an external microphone and AC 220 V mains. This kind of transmitter uses three different subcarrier values. Up to three transmitters with different subcarrier values can operate at the same time in a location.
The transmitter can be connected in parallel to 220 V mains, in any point and with any polarity.
The receiver is a separate module, housed in a metal case with cables for mains connection, earphones, optional recorder and external power supply. ON the front panel of the receiver you will find the knobs for tuning and volume control, and the on-off switch. The transmitter features a built-in delta modulation decoder.
Thanks to the subcarrier high value, receiver and transmitter can be placed on two alternative phases of the mains, thus significantly reducing any interference in the audio channel.

FEATURES

  • Digital encryption;
  • Tiny size;
  • AC Power supply;
  • High data transfer speed (125 Kbit/sec);
  • Audio compressor;
  • Dynamic range over 76 dB;
  • High quality audio signal.
digital-line-carrier-bug

CODE:ENKPL-SD
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TECHNICAL SPECIFICATION TRANSMITTER

Frequency   1,6-2,4 MHz
Modulation   GMSK
Rate data transfer   125 kbit / s.
Power supply   AC 220 V, 50 Hz
Output voltage   200 mV
Current consumption (AC 220 V)   20 mA
Dimensions
  65 x 25 x 10 mm

TECHNICAL SPECIFICATION RECEIVER

Frequency   1.6 - 2.4 MHz
receiver-digital-line-carrier-bug
Riceiver KPL-SD
Modulation   GMSK
Sensitivity   20 mcV
Current consumption   70 mA
Power supply:    
- Internal   4 x AAA 1.5 V
- External   6 V DC, 350 mA
Dimensions   130 x 68 x 20 mm


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Disclaimer: The customer is responsible for the knowledge of the laws that rule the use of these devices in his country.
ENDOACUSTICA DECLINES ANY RESPONSIBILITY FOR ILLEGAL USE OF THESE DEVICES.
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