Catalog

EDD-24XT – Portable Non Linear Junction Detector (NLJD)

The EDD-24XT is a portable Non-Linear Junction Detector or ‘NLJD’ designed specifically for professional countermeasures use (TSCM). It will detect the presence of semiconductor circuits that are used in all modern electronic devices such as mobile phones, tracking devices, listening devices, covert cameras, digital voice recorders, SIM cards etc.

Importantly, the EDD-24XT will detect such devices whether they are switched on and in use, powered on but in standby mode, or even switched off without any power.
The EDD-24XT is supplied with an adjustable aluminium extension pole that enables the length to be set anywhere between 30cm and 140cm, enabling the user to reach higher, hard to reach areas.
The EDD-24XT is a compact handheld Non-Linear Junction Detector or NLJD. It will detect the presence of semiconductor circuits that are used in all modern electronic devices such as mobile phones, tracking devices, listening devices, covert cameras, digital voice recorders, SIM cards etc. Importantly, the EDD-24XT will detect such devices whether they are switched on and in use, powered on but in standby mode, or even switched off without any power.
Principle of operation
Semiconductor Electronics are used in all modern electronics and are made using Silicon. When high frequency radio signals are transmitted directly over silicon, they produce a strong second (2nd) harmonic frequency of that radio signal. Other materials such as some bi-metals or oxidised metals can respond with a third (3rd) harmonic signal.
The EDD-24XT transmits a focused directional signal on 2.4 GHz (ISM Band Type B). It receives on 4.8 GHz (Second Harmonic) and 7.2 GHz (Third Harmonic).
The highly sensitivity receiver will respond to any signals produced on the 2nd Harmonic by even the smallest piece of Silicon such as that used in SIM Cards, Mobile Phones, Bugging Devices, Voice Recorders, Covert Video cameras etc. Importantly those devices do not have to be in use, in standby or even have any power connected to them to be detected.
The 3rd Harmonic receiver acts as a valuable confirmation for signals that may be ambiguous or are not a threat such as those in oxidised metals, bimetals etc.

Probability Indicator
To allow even an inexperienced user to make a quick assessment of a detected signal the EDD-24XT uses an intelligent algorithm to analyse the detected signals from both the 2nd and 3rd Harmonic Receivers and evaluate the probability of material being detected as ‘Silicon’ or ‘Metal’.

Audio Confirmation

The EDD-24XT Can provide audio confirmation of detected signals in two ways, through the internal loudspeaker or earphones.
Tone Mode
can be used to provide an audible tone of a detected signal on the 2nd Harmonic only. This enables the user to search without looking at the display screen. The TONE changes in pitch according to the strength of the detected signal.
Demod Mode
can be used to listen to an actual demodulated signal of the 2nd Harmonic Receiver. When no signals are detected a random audible ‘Click’ sound will be heard. In some cases when Silicon is detected the click level will reduce or become completely silent.
Adjustable head
The EDD-24XT features an adjustable head that can be set to one of five positions over a 90-degree angle at the push of a button.
2 x 200 g Counterweights are also supplied that can be screwed into the base of the extension pole handle to help balance the assembly for comfort, especially when the pole is extended.
Portable
The EDD-24XT is genuinely portable weighing less than 900 g including the telescopic extension pole. It is encased in a machined aluminium enclosure for ultimate durability with a tough plastic antenna cover. The internal Lithium Polymer battery pack gives up to 4.5 hours of use from one charge. The whole package is supplied in a compact military standard carry case for ultimate protection and portability. Total package weight is just 3.0 Kg.
Supplied in package
  • EDD-24XT Portable Electronic Device Detector
  • Aluminium Extension Pole
  • 2 x 200 g Counterweights
  • Charger – 110 V to 240 V AC input (Auto Switching) with International Adaptors – Output 5 V DC
  • Earphones
  • High Protection Military Standard Carry Case
Features
  • Detects all types of electronics – whether active, passive or even switched off
  • Adjustable Extension Pole – Extends from 30 cm to 140 cm
  • Adjustable Head Angle – 5 lockable positions over 90 degrees
  • Easy to operate with an intuitive user-friendly interface
  • 2.4 GHz Transmit – up to 4 Watts
  • 2nd Harmonic (4.8 GHz) and 3rd Harmonic (7.2 GHz) Receivers
  • As powerful and sensitive as much larger so called ‘portable’ units
  • Detected material Indicator ‘Silicon’ or ‘Metal’
  • Will even detect the latest NANO SIM cards from up to 20 cm
  • Audible Tone and Demodulation Function through speaker or earphones
  • Battery life up to 4.5 hours
  • Weight less than 900 g
  • Machined Aluminium Enclosure with Moulded Plastic Antenna Cover
  • Supplied in a compact Military Standard Carry Case
Technical Specifications
Transmit Frequency 2.400 GHz – 2.425 GHz (ISM Band Type B)
Transmit Power Level Up to +30 dBm (1 Watt)
Radiated Power Antenna Up to +36 dBm (4 Watts)
within allowable limits of ISM band (Type B)
Display 3.5-inch Colour TFT Daylight Readable
Receiver Sensitivity Better than -120 dBm on 2nd and 3rd harmonics
Receiver Bandwidth Approx 10 kHz
Battery 3.7 V Lithium Polymer Internal rechargeable
Battery Life 4.5 Hours (Minimum TX Power)
2.0 Hours (Maximum TX Power)
DC Charge Micro USB Socket 5 V 1 A
Charger Input 110 / 220 V Auto-switching – International Adaptors
Output 5 V DC 2 A
Audio Internal Loudspeaker or via 3.5 mm Earphone Socket
Operating Temperature 0 oC … +40 oC
Enclosure Machined Aluminium Enclosure with Plastic Antenna Cover
Extension Pole Length adjustable from 30cm to 140cm
Weight:
 – Main unit with extension pole fitted 870 g
 – Carry case 3 Kg
Dimensions:
 – Main unit 225 x 118 x 51 mm
 – Incl. extension pole H450 x W110 x D47 mm
 – Carry Case 363 x 282 x 120 mm (Military Standard)
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