Power line carrier digital encoded bug. Transmission on subcarrier frequency of electrical network wires
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 receiver front panel you can 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.
The ENKPL-SD power line communication system is ideal for audio interceptions in places where radio frequency transmission is compromised by objective conditions, and in any case also for very long monitoring over time. In fact, since the device does not have battery, it can work non-stop 24 hours a day, 365 days a year, as long as it is connected to voltage.
*we recommend using this spectrum inversion encrypted transmitter in combination with:
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Frequency: 1.6 - 2.4MHz
Modulation: digital GMSK
Rate data transfer: 125 kbit/s
Power supply: 220Vac@50Hz
Output voltage: 200mV
Current consumption: 20mA
Size: 65 x 25 x 10 mm
Frequency: 1,6 - 2,4MHz
Demodulation: digital GMSK
Sensitivity: 20 mcV
Power supply: internal 4 x AAA 1.5 V - external 6 V DC, 350 mA
Current consumption: 70mA
Size: 130 x 68 x 20 mm
Audio investigations by law enforcement units or private investigators
Control of rooms, houses, offices, shops, cars etc. for eavesdropping
In general when it is necessary to retrieve information and/or carry out investigations with very high audio level through the the electrical network wires, or where it is not possible to use radio transmission in any case
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