ORION non-linear junction detector

June 2010 Products

A non-linear junction detector is important for technical surveillance countermeasures or TSCM work. Bugging devices are often thought to be transmitters, but hardwired devices or devices that can be turned on and off remotely that do not emit an RF signal could be overlooked. A non-linear junction detector (NLJD) is made to find these types of hidden devices. A NLJD detects hidden electronic devices regardless of whether the device is transmitting, hard wired or even turned on at all.

It transmits an RF signal and then listens for harmonic returns to detect the presence of electronics. When the transmitting signal encounters semi-conductor junctions (diodes, transistors, etc), a signal is returned at harmonic frequency levels according to the characteristics of the junction, providing an indication of the presence of electronics.

The ORION provides excellent discrimination between corrosives and electronics (2nd and 3rd harmonics) and utilises automatic power control which reduces the transmit power to a level where a good distinction between the different levels is visible, making it easy to discriminate between true electronic junctions and false corrosive junctions.





Share this article:
Share via emailShare via LinkedInPrint this page



Further reading:

A ‘step-change’ in tracking and monitoring
Issue 8 2020, Dahua Technology South Africa , CCTV, Surveillance & Remote Monitoring, Products
View an overall scene while monitoring a specific person or vehicle, or obtain a panoramic view while being able to zoom in and track particular targets.

Read more...
AX PRO wireless alarm solutions
Issue 8 2020, Hikvision South Africa , Perimeter Security, Alarms & Intruder Detection, Products
Hikvision announced its new generation of wireless alarm systems – the AX PRO – delivering comprehensive alarm solutions for both residential and commercial applications.

Read more...
Scanning for gold
Issue 8 2020, Saflec , Asset Management, EAS, RFID, Products
The metal detection market is such that customers looking for a specific point solution are becoming a rarity and the primary desire is for a solution.

Read more...
Standalone power supply range
Issue 9 2020, Technoswitch , Products
Technoswitch recently modified and expanded its standalone 100–240 V AC to 24 V DC, 2 A regulated power supply range.

Read more...
Smartphone controlled access
Issue 9 2020, dormakaba South Africa , Products
Evolo Smart is a total solution, managed via an app on your smartphone, for smart access for the home or micro-enterprise business.

Read more...
Containerised temporary physical security solutions
Issue 9 2020, Turnstar Systems , Products
Turnstar Systems has developed a temporary physical access security solution that provides an affordable mobile solution for controlling access.

Read more...
Latest Panomera generation
Issue 9 2020, Dallmeier Electronic Southern Africa , Products
One system replaces up to 24 cameras and saves over 50% on the total cost of ownership.

Read more...
JVA radio frequency interface
Issue 9 2020, Stafix , Products
Roboguard has partnered with Pakton Technologies to create a new interface for the Roboguard wireless outdoor detector beam.

Read more...
JVA Cloud Router
Issue 9 2020, Stafix , Products
The JVA Cloud Router provides a portal to route communications between the administrators and owners of security electric fences and their devices in the field.

Read more...
DIY solution to early-warning, wireless, outdoor security
Issue 9 2020, Stafix , Products
The Askari Scout and Spy obscure outdoor detectors, with their double beam passive infrared sensors, detect changes in light, heat, and movement.

Read more...