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security solutions

PHJD24 - Counter Surveillance system

general description

The counter surveillance equipment PHJD24 has been designed for detection of nonlinear junctions. Nonlinear junctions include a wide variety of components such as diodes, transistors, IC’s, etc. The PHJD24 can detect electronic circuits such as hidden transmitters, and tape recorders even though DC source is NOT applied.
Corrosive junctions, hence discards false alarms. Both 2nd & 3rd harmonics The PHJD24 is a state-of-art the Non Linear Junction Detector based on the latest technology and includes DDS and DSP components. The system provides an evaluation of the 2nd and 3rd harmonic.
When the system receives a strong 2nd harmonic, it indicates the presence of electronic components while a strong 3rd harmonic reception indicates false is displayed at the same time.

SOLUTION COMPONENTS

1. Transmitter:

  • a. Frequency: 840 – 915 MHz
  • b. Output power equal and no more than 4W (continuous)
  • c. FM modulation continuous (AM if customer requires)

2. Receiver:

  • a. 1,680 – 1,830 MHz and 2,520 – 2,745 MHz respectively
  • b. Sensitivity -133dBm

3. Antennas:

  • a. Control function with volume and power selection
  • b. All cables and connectors are secured

4. Output:

  • a. Audio: with and without headphone
  • b. Display: visual display distinguishing 2nd and 3rd harmonics
  • c. False alarm rate: lower than 3%

5. Power:

  • a. Battery: rechargeable with minimum 3 hours operation on single operation full charge. The battery has protection against reversed polarity.
  • b. Battery charger: 180 – 240V

6. Detects and identifies semiconductor and corrosive bimetal junctions

TECHNICAL ADVANTAGES

  • Fully digital system
  • Automatic or manual channel select
  • High power transmitter (+38 dBm)
  • Excellent receiver sensitivity
  • CW or Pulse mode operation

PHJD24 ADVANCEMENT

  • LED Display with high brightness
  • High gain circular antenna
  • Minimum setup time
  • Robust & lightweight design
  • Easy to use
  • Rechargeable batteries Li-Polymer

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