HF and VHF-UHF Monitoring & Direction-Finding System

Over the years, dense signal environments have become common at sites such as government, military and security facilities, embassies in foreign nations, air terminals, ports, sports venues and other public locations. This requires leading-edge technology to detect and locate constantly evolving security threats when it comes to radio monitoring and security. 

Stratign offers an array of solutions tailored for these diverse situations. Whether operating under direct supervision or autonomously, our systems help identify potential security breaches in real-time and trigger alarms, as well as gather intelligence data to make informed risk mitigation decisions. 

Let’s get to know what HF/VHF/UHF means and how Stratign’s valuable Radio monitoring and Direction-Finding (DF) System can prove to be further beneficial. 

HF/VHF/UHF: Understanding Radio Monitoring Terminology in detail.

1. HF/VHF/UHF is known and referred to as radio frequencies betwixt 3 and 3000 MHz. Radio waves are widely utilized in modern technology, specifically in telecommunication. HF – High frequency (3–30 MHz) is the band associated with shortwave broadcasts, citizens band radio, amateur radio and over-the-horizon aviation communications, RFID, over-the-horizon radar, automatic link establishment (ALE) / near-vertical incidence skywave (NVIS) radio communications, marine and cell radio telephony.

2. VHF – Very high frequency (30–300 MHz) is the band connected with TV broadcasts, ground-to-aircraft, aircraft-to-aircraft & line-of-sight interactions, land mobile and maritime cellphone communications, amateur radio, and climate radio.

3. UHF – Ultra high frequency (300–3,000 MHz) is the band interlinked with broadcasts, microwave oven, TV, radio astronomy, cell phones, wireless LAN, ZigBee, GPS and 2-way radios, like land cellphone, satellite radio and Remote-Control Systems.

Stratign’s advantageous HF/VHF/UHF Monitoring & Direction-Finding System

The HF and VHF/UHF Monitoring System is fabricated and integrated for the objective of passive monitoring, logging and evaluation of target HF/VHF/UHF radio links.

For wideband scanning of chosen spectrum, the system has a Wideband Search and Intercept Receiver with wideband DF to search and monitor radio transmissions in HF/VHF/UHF bands. These can be unified with Multi-Channel Monitoring Receivers to monitor the radio communication frequencies of interest along with direction finding of separate narrowband signals.

The system can be combined with a Direction-Finding system for integrating diverse monitoring stations for an in-detail local map assimilation for location-finding of target radio transmission stations. The system can be also unified with a software-based signal classifier and high-end protocol decoding system for decrypting of data protocols utilized in radio transmissions.

The system can be offered in both static and transportable configurations where all the modules are faultlessly integrated to provide a comprehensive and interceptive surveillance platform to the operator for effectual and efficient monitoring process. The system can be conveniently employed in any configuration of customer’s requirement. 


1. Comprehensive monitoring capability with localization of all signals from 25 – 6,000 MHz or quick scanning detection with synchronized DF of all     identified signals at frequency channelization of 25 kHz.
2. Different configurations of systems for man portable, vehicular or static operations.
3. Multi mission support using field proven Direction-Finding algorithms.
4. Detection and direction-finding of multiple modern signals
5. The system supports multiple signal types simultaneously.
6. Selectable wideband 24 MHz (VHF/UHF/ instantaneous bandwidth etc.)
7. Advanced software-based analysis and decoding of protocols of data transmission.


Were you aware that during the 20th Century, POTS (plain old telephone service) became the central form of communications? Well, to help law enforcement agencies (LEAs) do their job safely and effectively, a method called “wiretapping” was developed to lawfully monitor and collect telephone communications of alleged criminals once a warrant was granted from the judicial system. It was called wire tapping as the observing and connection device was an authentic electric tap on the telephone route.

What does a Wiretap system mean?

A Wiretap system, also known as Telephone tapping or wiretapping refers to the method of observing or monitoring cellphone and Internet-based conversations via 3rd party often by covert channels.

How do Wiretap Systems work?

Operating through the proficiencies in telecommunications and cellphone networks, Lawful interception (LI) permits LEA’s with court directives or various other legal sanctions to specifically wiretap discrete targets.

The surveillance is performed using wiretap systems on traditional telecommunications and Internet services in voice, data, and multiservice networks. The LEA delivers a request for a wiretap system to the target’s service provider, who is responsible for intercepting data communication to and from the individual.

Stratign’s Monitoring Centre (STN-MC) – A perfect solution for Lawful Interception

The LI system solution from Stratign is a switch-oriented Lawful Interception System which is proficient of seizing targeted communications from Telecom Switches. This nationwide phone interception solution can intercept all communications (mobile and fixed line) which are going through the telecom switches.

The Stratign Monitoring Centre (STN-MC) is a turnkey solution for the monitoring, processing, decoding distribution and presentation of intercepted data of targets from circuit switched networks. (for example, handset and fixed telephony) as well as for packet switched systems (e.g. internet, email) and is used by law enforcement and/or intelligence agencies. The STN MC is compliant with the latest ETSI and/or CALEA specifications for the Lawful Interception System but can also support country specific LI handover protocols.

Generic System Features

• Hassle free implementation and easy-to-use.
• Available in multiport options for multiple E1.
• Scalable across technology and product environment.
• 8 TB Buffering Capacities (Can be increased as per the user requirement).
• Logging of incoming calls with specifications such as time, duration, date, CLI, etc.
• Logging of outgoing calls with date, time, duration and number dialed.
• Date and time of every attempt of making an outgoing call (irrespective if the call is connected or not).
• Stereo documenting of caller and called for digital lines via recording.
• Provision for employing real-time monitoring of voice communications.
• Facility of search in reports based on caller-id, duration of the call, time etc.
• Solution for all Circuit Switched and Packet Switch communication Networks.
• Scalable distributed architecture offers Central Monitoring Centers and Remote Monitoring Centers for nationwide deployment.
• Real-time display of target positions via the GIS location tracking system.
• Compliant to Global Standards like ETSI, CALEA and country specific standards.
• Recordings can be searched on date and time, TMSI, IMSI and IMEI.
• Case-based Target Administration.
• Supports a wiretap system in both the input and output direction.
• Supports a wiretap system of individual subscribers that share a single physical interface.

Overall, as long as wiretap systems remain an authorized investigatory tool, law enforcement will press for ways to accomplish electronic surveillance even in the face of communications technologies that make it very difficult. Hence, adopting Stratign’s accurate international standard based network forensics technologies for lawful interception, data retention and network management would be beneficial to meet national requirements.


The amount of interception requests authorized by LEAs continues to expand globally (especially in countries that preserve widespread surveillance capabilities). Apart from lawful interception systems, additional network forensics support facilities, like data retention technologies for collecting and storing intercept-oriented data of all communications, have to be mounted by service providers in an emerging number of states, throughout the world.

Stratign supports these needs with a Monitoring Center Platform for Lawful Interception operating on any network. This solution is fully compliant with lawful regulations on data retention and conforms with the latest ETSI requirements supporting the General Data Protection Regulations (GDPR) and national requirements.

What is Data Retention?

Data retention, also known as records retention, is the sustained storage of an organization’s information for compliance or business motives.
An enterprise may retain information for diverse reasons. One reason is to comply with state and federal regulations. Another is to supply the organization with the competence to recover business critical information, for reasons of business continuity, during the situation of a site-wide data loss, like fire or floods.

Stratign’s Monitoring Centre (STN-MC) – A perfect solution for Lawful Interception

With the capability of intercepting targeted communications from Telecom Switches, the LI system solution from Stratign is a switch-based Lawful Interception System. This nationwide phone interception solution can intercept all communications (mobile and fixed line) which are going through the telecom switches.

When taking data retention into consideration, Stratign’s robust and scalable platform, interfaces through a single platform with multiple networks and multiple technologies. It can also interface to 3rdparty network storage systems and analytical platforms for data access and delivery, supporting multiple delivery standards simultaneously.

The Stratign Monitoring Centre (STN-MC) is a turnkey solution for the monitoring, processing, decoding distribution and presentation of intercepted data of targets from circuit switched networks. (for instance, cell phone and fixed telephony) along with packet switched networks (e.g. internet, email) and is utilized by law enforcement and/or intelligence agencies. The STN MC is compliant with the latest ETSI and/or CALEA specifications for the Lawful Interception System but can also support country specific LI handover protocols.

Additionally, the solution has been designed as a carrier-grade system to enable fast and secure access for data retention by authorized agencies. It permits network operators and Internet service providers to conveniently comply with latest telecom protocols for data retention.

The solution also allows to carry out Bulk Interception of Calls, which supports capturing personal communications and data of thousands of individuals, nationwide.

Generic System Features

• Hassle free implementation and easy-to-use.
• Available in multiport options for multiple E1.
• Scalable across technology and product environment.
• 8 TB Buffering Capacities (Can be increased as per the user requirement).
• Logging of incoming calls with specifications such as time, duration, date, CLI, etc.
• Logging of outgoing calls with date, time, duration and number dialed.
• Date and time of every attempt of making an outgoing call (irrespective if the call is connected or not).
• Stereo documenting of caller and called for digital lines via recording.
• Provision for employing real-time monitoring of voice communications.
• Facility of search in reports based on caller-id, duration of the call, time etc.
• Solution for all Circuit Switched and Packet Switch communication Networks.
• Scalable distributed architecture offers Central Monitoring Centers and Remote Monitoring Centers for nationwide deployment.
• GIS location tracking system exhibits real time position of targets.
• Compliant to Global Standards like ETSI, CALEA and country specific standards.
• Recordings can be searched on date and time, TMSI, IMSI and IMEI.
• Case-based Target Administration.

Overall, information and communication technologies have supported Lawful Interception since the era of Morse’s telegraph. Interception is dynamically practiced globally with a rising number of applications. Hence, adopting accurate international standard based network forensics technologies for lawful interception, data retention and network management would be beneficial to meet national requirements.

Therefore, taking advantage of Stratign’s Lawful Interception solutions would prove to be constructive as it focuses on officially intercepting private communications to support legal and/or criminal investigations. The Lawful Interception solution offered by us comprises of all available systems such as cellular networks, internet networks and fixed-line network.

Importance of Intelligent Cell Phone Jamming

Nowadays, the utilization of mobile phones has increased rapidly. One of the rising threats to security is unlawful cellular phone conversations at confidential places like Prisons, Courthouses, Military facilities etc. For this reason, communication jamming devices were first developed and used by military forces to prevent the successful transfer of information between enemy forces.

Hence, due to this evolution, Prisons, Courthouses, Military facilities, schools, etc., require silence and security too. This is achieved by using intelligent cell phone jammers. An intelligent cell phone jammer is designed for allowing only the authorized calls by utilizing advanced technologies.

What are Intelligent Cell Phone Jammers & how are they different & beneficial from traditional ones?

There are 2 main varieties of jammers, non-intelligent i.e. traditional cell phone jammers, and intelligent cell phone jammers. The traditional jammer is utilized in a restricted area and is designed to block all cell phones that operate in a certain frequency band such as the downlink frequency band of the global system for mobile communication. This type of jammer is not fit for places where essential communications have to continue, especially for military applications, because it blocks all cell phones present in the restricted area. Furthermore, the system will broadcast jamming signals, irrespective whether there is a lawful mobile user in that restricted location or not.

On the flip side, the Intelligent jammers work as a detector and blocker which solves the pitfalls present in the traditional jammer. The system has the capability of creating a ‘white list’ of authorized subscribers and allowing them to communicate freely while blocking all other phones in that area. Put simply, the unique technology used in this jammer allows the operator to selectively block communications of the users within its coverage range.

Stratign’s Intelligent Cell Phone Jammer (STN-ICJ3000) & its Valuable Usage

The exclusive technology utilized in this jammer allows the operator to particularly block communications of the unauthorized users within its coverage range while permitting the authorized phones to work.

Significance of Intelligent Cell Phone Jammer: STN-ICJ3000

An Intelligent Cell Phone Jammer like STN-ICJ3000 provides the operator with absolute control over GSM phones functioning within the premises. Stratign’s advanced system can automatically scan and detect all active 2G, 3G & 4G mobile phones surrounding its coverage area. At the time of scanning, the system automatically gathers the handsets / SIM identities (such as TMSI, IMEI and IMSI) which can be utilized to recognize legal and illegal phones. By adding the authorized GSM phones to a GUI based ‘white-list’, the operator can allow them to communicate and the unauthorized mobile phones will be involuntarily jammed and would be added to the ‘black-list’.

What’s more, to locate unauthorized phones within the premises, the system can be integrated with a direction finder as well. Hence, numerous systems can be implemented and coordinated by a common GUI.

Advantageous features:

• System capability: Selective Jamming of 2G, 3G and 4G Phones.
• Unlimited cell phones can be included to the white list.
• Coverage of larger areas/new networks: Possible with integration of flexible system & multiple systems
• Displays diverse types and models of all phones within the coverage range: IMEI, MCC, MNC, IMSI, TMST
• All the examined parameters can be saved in a database for future analysis.
• Integration of direction finder: to physically locate & capture unseen cell phones.
• Both directional and omnidirectional antennas can be utilized to expand the coverage scope of the system.
• Can be remotely controlled using LAN or WAN
• Can display the approximate target location on a digital map.

In conclusion, Stratign’s accurate and applicable Intelligent Cell Phone Jammer (STN-ICJ3000) makes it possible to overcome diverse challenges of Law Enforcement Agencies, by allowing authorized cell phones to communicate while the unauthorized ones are denied services, all over the world.

Satellite monitoring and analysis

Security environments are turning out to be more and more challenging as the obscurity of technology progresses, especially for government authorities occupied in the surveillance of communications traffic emerging across diverse satellite networks.

What is Satellite Monitoring and how it works?

Satellite Monitoring System is a satellite communication traffic reception, demodulation, and deciphering system. The Satellite Monitoring System is a powerful platform for Government and Intelligence Enterprises to monitor communication traffic in a totally passive mode. The Satellite Monitoring System offers the Government and Law Enforcement agencies with an absolutely sophisticated programmed tool for carrying out an almost real-time evaluation of Satellite Communication networks of interest.

To carry out passive compilation of satellite transported data and attain plain voice/fax and data statistics, the Satellite Monitoring System will offer an automated platform to the Intelligence agencies. In case the transported information is encrypted, the Satellite monitoring system will provide encrypted raw output. Decryption is not within this system and should be considered as a distinct activity altogether.

Understanding the functionality, a bit deeper!

In Satellite Monitoring one should differentiate between the downlink from the satellite to the target device (e.g. satellite phone) and the uplink from the target device back to the satellite. The downlink is generally easier to intercept as long as one’s own monitoring equipment is within the same ‘satellite spot beam’ as the target device.

With spot beam diameters of hundreds of kilometers this is rather easy to accomplish. The uplink can either be intercepted tactically or strategically. Tactical monitoring means that your monitoring equipment is within the target’s radio line-of-sight, so it can intercept the uplink over the air. Strategic monitoring means that you intercept the uplink not on its way from the target device to the satellite, but when it is relayed from the satellite down to the ground station of the satellite provider. For this eavesdropping you typically need a big provider-grade satellite dish antenna, especially if your antenna is located far from the provider’s ground station.

Satellite Monitoring System from Stratign

The Satellite Monitoring System from Stratign (STN-3412) has been designed and developed to intercept C, X, Ka and Ku-Band compressed (DCME) and non-compressed (Non-DCME) satellite carriers from Global and Regional Satellite Service Providers such as Intelsat, Eutelsat, Turksat, Arabsat, indosat etc.

By providing a mechanized platform for the Intelligence agencies to conduct passive collection of satellite transported data, the STN-3412 is equipped with Carrier Monitoring Application for the purpose of conducting the analysis of the selected satellite carriers and producing their characteristics, which can be applied during monitoring of the same with a content monitoring system.

Beneficial Features:

• Interception of Domestic and International DCME and Non-DCME satellite carriers from C/ X/ Ka/ Ku-band.
• Integrated Carrier Monitoring for finding new signals as well as hidden/discreet satellite signals.
• Satellite data acquisition, real-time demodulation, decoding and decompression.
• Automatic decompression after successful classification of DCME type.
• System is equipped with 18TB storage and archiving capability which can be customized as per user requirement.
• Provides online analysis of SS7 signaling.
• Provides originating country and destination country (in case of international link).
• Standard system configuration can handle minimum 2 E1 carriers and can be customized as per the customer requirements.

Why go for Stratign’s Satellite Monitoring System?

The software of the system is highly user friendly and can be operated with ease.
The database server application is designed to keep track of intercepted information. Also, map application is equipped with a tool to estimate the distance between the different locations of the target.
The Carrier Monitoring application can also be used for searching for new anonymous satellite frequencies which are in operation, when the new frequency is detected by the operator, he can perform detailed analysis on the same carrier to find the modulation type along with other parameters.
All-in-all, STN3412 allows the operator to see all the Voice, Fax and Data sessions on its main screen in real time. The operator can select and listen to any one session in real time while the rest of the sessions will be recorded in the database which are available for the analysis to other operators. The database server is connected to multiple clients, which are manned by operators to analyze the intercepted data.

GSM Monitoring

In recent times, cellular Interceptions & cellular monitoring technologies provide LEAs and Government Agencies with a technological edge for real. It is through cellular interception, that is making it possible for users to gain Communications Intelligence (COMINT) which assists several authorities to protect, investigate, and manage intercepted wireless communications such as voice and data.

Hence, in the battle against terrorism and criminal activities, a real-time GSM Monitoring system was created to offer world-wide government and law enforcement societies with the most valuable spectrum interrogation tool. These days, numerous Law Enforcement surveillance users look for the modern GSM Monitoring Systems with communication control and forensic elements.

This advancement of GSM technology, enhanced technological features and increased complexity in GSM Monitoring systems, presents a competitive environment for Stratign to design and develop solutions to provide total Off -The – AIR Communication Surveillance systems to its diverse Government and Intelligence Gathering clients.

What is GSM Monitoring System & how does it work?

GSM Monitoring System is the equipment assimilated with GSM Monitoring and trailing equipment which intercepts and oversees Voice, SMS, and GPRS information. This system can be utilized to intercept communications from any GSM service providers globally, irrespective of the type of encryption being utilized.

The GSM Monitoring System carries out audio and information monitoring by extracting signaling and non-signaling data from a domestic cellular network. This extraction process is range specific. In fact, Law Enforcement can intercept cellular communications and supervise a target under examination in a local vicinity. Once the system confines onto the target, the operators can monitor voice chats, text communications, and carry out varied intelligence masking practices.

The GSM Monitoring System holds a non-interfering monitoring capability and can be positioned to work in a stationary approach for short and long-range geographies.

Knowing the types of GSM Monitoring Systems via Stratign!

a) Semi-Active GSM Monitoring System

The progression of GSM technology along with amplified technological factors and heightened complexity provides Stratign with a competitive environment to generate and create solutions to offer an absolute ‘Off-The-AIR Communication Surveillance System’ to different Government and Intelligence-Gathering clientele. The Semi-Active GSM Monitoring System has a universal functional capability. This system can be exploited to intercept communications worldwide, from any GSM service-provider, regardless of the kind of encryption being exerted. While in the active zone, the system mimics the cell-phone tower making it to behave as a genuine unit and controls the target’s cell phone to register with it.

Product Features:

• Interception capability and logs on all GSM, 3G and 4G Bands.
• Quantity of channels: Configurable from 04 channels to 16/32 channels.
• Real-time Interception of GSM communications: Encrypted in A5/1 and A5/2 Ciphering algorithms.
• Automatically tunes the Receivers: Makes it possible to scan and identify control channels & communication system restrictions.
• The System does not necessitate the service provider’s SIM for operation.
• The system can observe all interactions of the target (Voice, CRI, Location) until it is under the range of coverage.

b) Passive GSM Monitoring System

Stratign’s Passive GSM Monitoring System is a ‘multi-network’ tunable GSM Monitoring system. Every receiver is self-reliant by connecting & tuning to any frequency of the GSM Network. To ensure effective interception and decryption of auditory conversations, Stratign’s system can target all standards like GSM-850/900/1800/1900MHz Cellular network in a static or in a mobile-environment. The Passive systems can be conveniently assimilated momentarily with an active 3G/4G unit to demote the communication to 2G for interception of 3G and 4G channels as well.

Product features:

• Number of channels configurable: Begins from 04 channels to 16/32 channels.
• Automatically identifies, decodes the ciphering algorithms utilized on the network in real-time. It also registers mobile phone conversations, call-
   related information & data of the network to the hard-disk of the system.
• Capable of scanning GSM network parameters in the detained area (Service Provider, Cell IDs, Broadcast Channel Number and Signal Levels).
• Possible to operate full-time in an automatic mode without any contribution from the operator’s end.

c) Hybrid GSM Monitoring System

The Hybrid GSM Monitoring system via Stratign is a mixture of subsystems – Passive and Active. Together the passive component and the active component of the system can function in synchronization. The passive component can be used to conduct passive missions, while the active component can be utilized to help the interception based on the target. This makes the system more discrete and difficult to detect.

Product features:

• Capability of operation: All the 4 GSM bands – 850/900/1800/1900MHz
• Holds the ability to assimilate with active 3G and 4G Nodes
• Number of channels configurable: Begins from 04 channels to 16/32 channels

Therefore, look for Stratign’s GSM Monitoring solutions that are entirely integrated, compatible and portable systems. They can also be conveniently shifted and implemented for critical ‘based on the mission’ situations. These GSM Monitoring systems provided by Stratign can be custom-made to fit in your existing vehicle or vehicle of your choice to capture the target while moving.

Common GPS Jammer Myths

Ever knew that GPS jammers were initially created by the government, for military organizations and spy agencies? Yes, and it’s uses include confusing the enemy on exact locations, or where the enemy GPS guided missiles or bombs will fall.

Recently civilians have sought out these devices to insure their privacy in an ever-increasing GPS-tracked world. There are a few civilian uses for jamming GPS signals, mostly privacy related, including the ability to conceal oneself or one’s vehicle in case it is being tracked by a GPS receiver. A practical application would be a salesperson or delivery driver, that may wish to lunch outside their territory, or return home for a forgotten item, without having to do loads of explaining because of GPS tracking on their automobile.

What GPS Jamming exactly is and how it works?

First, let us understand what GPS is and how GPS tracking works. Currently managed by the U.S. Air Force, GPS is a radio-navigation system that uses the Global Navigation Satellite System (GNSS) network to use time data sent from dozens of satellites in space that are equipped with atomic clocks. Each satellite transmits signals, and the GPS receivers on the earth use these signals to communicate their locations.

An occasional satellite malfunction may disrupt these signals, but a more intentional cause would be due to GPS jamming. A GPS jamming device gets plugged into a vehicle’s cigarette lighter port and works by broadcasting noise on the same frequency used by the satellites. In this manner, the GPS receivers cannot capture the satellite signals. Being reliant on the strength of the GPS jammer, it can supersede the GPS receival for a few miles or plots.

Myths About GPS Jammers

Most field service representatives are aware of the regulations and penalties for using a GPS jamming device to manipulate their location or driving log. Yet, GPS jammers are innocently used by some drivers and reps who do not want to be tracked by their managers. These actions can have a more significant impact.

Below are some common myths about them that are so not true.

a) GPS Jamming Devices are harmless when only used to hide your location.

Fact: A jammer device, also known as a signal jammer, may seem harmless at first. However, its potential to cause harm is substantial. These jammers have the potential to disrupt critical communications services, such as ambulances, police, 911, and firefighters. So, in quite a few countries, the manufacturing, sale, distribution, and possession of GPS jammers is a federal crime, with punishment ranging from hefty fines and seizure of the jamming device to prison time.

b) It is legal to install jamming devices that claim to block GPS signals of vehicles only.

Fact: Any device that blocks GPS signals by emitting an interfering with radio frequency signals is illegal and cannot be marketed or operated in a country, except in the limited context of authorized use by the government. Since it is difficult to determine from an advertisement how a device functions, it is essential to contact the Enforcement Bureau/Federal Communications Commission (FCC) if you have any questions. If a radio transmitting device is not authorized by the FCC or is not labeled with an FCC identification number, people cannot legally operate it.

c) Using a GPS Jammer will make the current location invisible.

Fact: If field service representatives try to use GPS jammers to manipulate their location data and block GPS tracking, the managers will know about it. While drivers might think the jammers will make them invisible, their sneaky on-road behavior will attract even more attention. So, if a driver is trying to prevent a GPS tracker by using a jammer, the vehicle will not disappear; it will still appear on the live map as a missing trip.

GPS Jammers from Stratign

Stratign’s GPS Jammer has been fabricated and constructed to tackle all kinds of GNSS which are in use presently and it can block all commercial signals of the navigation systems. Being modular in construction allows flexibility of use to the customer, i.e. they can either seize all the signals together or only preferred GNSS signals.

Stratign’s GNSS Navigation Signal Jammer is created to defeat modern anti-jamming methods in current Satellite Receiver chipsets extensively utilized in drones (quadcopters/multi-copters), suicide UAVs, light UAVs and various other inexpensive “highly accurate” weapon’s navigation systems.

In conclusion, now that we understand how GPS jamming devices function and how they can be utilized, here are a variety of instances they can be applied on:

• Hidden, changing or masking positioning signals from GPS units.
• Preventing the ability to locate a device, such as during an emergency.
• Concealing the location of a device or vehicle.
• Denying precision guided weapons from striking the actual target.
• GPS guided drones can be blocked from navigation signals, thereby denying operational success to adversaries.

Important Things You Need to Know About RF Jammers

Did you know that radio frequency or communication jamming was theoretically invented at the dawn of radio communication? This concept was born through military approaches during times of war to prevent interruption and interception of their radio transmission by the enemy. The practical purpose of jamming is to prevent the enemy from using radio link freely.

What is an RF Jammer?

A radio frequency jammer is a device built, adapted or planned to be utilized to avoid the reception of radio transmissions via a receiver related to its operation. At best a radio frequency jammer could cause you to miss a call; at worst, it could facilitate a crime or put lives at risk.

The jamming of signals is intended to interfere communication by initiating aspects which disrupt the link between two or more devices, thereby tampering with the data flow. While occasionally radio jamming can strike accidentally, there are methods in which hackers can block frequencies so that the messages is hindered.

How do RF Jammers work?

A jammer normally functions by emitting an electromagnetic disturbance, sometimes called ‘noise’, on a band at an intensity that overwhelms the target receiver, making reception impossible.

Jammers may be designed to affect specific services like the frequencies allocated for mobile phone services, satellite navigation systems, Wi-Fi or security systems.

In radio jamming, hackers utilize a transmitter that is in-sync to the same modulation & frequency as the receiver of the signal. The hacker then amplifies the power of their signal in such a way that the frequency is hidden, jamming communication. The difference between intentional and unintentional radio jamming can be identified from the receiver’s end. This is possible as when a signal has been blocked, the signal receiver can always overhear unique noises on their ends, like distorted speech, hisses, pulses and other several sounds.

The significant role of RF Jammers

RF jamming is quintessential in several tactical scenarios, such as preventing the entry of a Drone into a restricted area, prevention of remote explosion of road-side explosives (RCIEDs) and hindering the communication channels of prisoners/terrorist/riot arrangers. Moreover, RF jamming is sometimes utilized (where legally allowed) in entertainment locations to prevent disturbances of a performance via user mobile devices. RF jammers are often implemented in facilities like the roadblocks or frontiers/checkpoints, military installations, prisons and government premises.

The beneficial RF Jammers from Stratign

Stratign offers various configurations of RF jammers to meet the operational requirements of various Law enforcement agencies at all levels. Our systems are engineered and created to provide constant disruption of unfavorable communications in the most tough, strategical and extreme environments.

Below are some of the diverse types of RF Jammers we provide.

a) Drone Jammer

Stratign’s tactic towards counteracting the UAV threat is on the foundation of a Four-step workflow. Detect the possible threat with the best available prospect of detection, Locate the Drone on a digitized map, Identify the probable threat as an actual risk with the slightest possible false alarm rate, Act on the threat by raising alarms or engaging the threat with a countermeasure.

Features of Stratign’s Drone Jammer

• The system can Detect, Locate, Identify, Disrupt UAVs navigation system and data links up to 1000 mt.
• Active solution able to handle most of the trade-related drones.
• Cohesive RF sensor and jammer solution for instant action on detecting drones.
• Ability of discovering direction and position of drone utilizing several RF sensors in tandem.
• Multiple systems can be utilized to shield outsized vulnerable areas near to public places where civilian entrance is easy.

b) Prison Jammer

Mobile phones are a major contraband in prisons and one of the easiest things to carry without notice. No matter what tactic the prison implements, the inmates discover a way to smuggle the mobile phones.

For this reason, the new Intelligent Cell Phone Jammer / Prison Jammer (STN-ICJ3000) from Stratign is designed to overcome this major disadvantage by selectively blocking communications of the user within its coverage, thus allowing authorized users to operate without restriction.

Valuable Features

• The system is capable of Jamming unauthorized 2G, 3G and 4G Phones while allowing authorized personnel to communicate.
• There is no limit of phones that can be added to the block list
• The system is flexible and can be upgraded to cover larger areas or new networks
• Both Directional and Omnidirectional antennas can be used to extend the coverage range of the system.
• The system can be remotely controlled using LAN or WAN

Apart from the above, We at Stratign provide a wide range of top-notch Communication Jamming products such as GNSS Jammers, Intelligent Cell Phone Jammers, RCIED Jammers, GPS Jammers and more.

What are the types of cyber security?

Let’s face it; we live in a digital world. Our work times, personal lives, and businesses have all started descending towards the sphere of the internet, mobile processing, and electronic media. Unfortunately, this prevalent marvel makes us more susceptible than ever to malicious outbreaks, invasions of privacy, scam, and other such unpleasantries.

Hence, cyber security is vital because government, corporate, financial, military and medical organizations gather, process, and collect exceptional amounts of information on computers and other devices. Let’s understand by what cyber security is, it’s diverse types and how Stratign’s Cyber Defense Solutions prove to be beneficial.

What is Cyber Security?

Cyber security refers to the usage of technologies, practices and controls to safeguard systems, programs, devices, networks and information from cyber-attacks. These cyberattacks are usually focused at acquiring, altering, or destroying sensitive data; extracting money from users; or interfering regular business processes.

Implementing effectual cybersecurity measures is specifically challenging today as there are more mechanisms than people, and invaders are turning more innovative. This makes it more imperative to understand the diverse types of cyber securities to apply those measures effectively.

Types of Cyber Security

a) Network security: It’s the practice of securing a computer network from intruders, whether targeted attackers or opportunistic malware.

b) Application security: This type of security focuses on keeping software and devices free of threats. A negotiated application could give access to the information its built to protect. Unbeatable security commences in the design stage, much before a program or device is arranged and deployed.

c) Information security: It safeguards the reliability and privacy of information, both in storage and in transit.

d) Operational security: It includes the processes and decisions for handling and protecting data assets. The authorizations users have when retrieving a network and the processes that evaluate how and where the information may be collected or shared, all comprise within this umbrella.

e) Disaster revival and business continuation: It refers to how a business firm responds to a cyber-security happening or any other event that instigates the loss of operations or information. Disaster recovery policies state how the entity restores its operations and data to resume to the same functioning capacity as prior the event. Business continuity is the procedure the organization plunges back on while trying to function without having any resources.

f) End-user education: This one addresses the most unpredictable cyber-security factor: people. Any individual can unintentionally present a virus to an otherwise ‘secure system’ by lacking to follow precise and effective security practices. Educating users to erase skeptical email attachments, not plugged-in unknown USB drives, and numerous other significant lessons is key for the protection of any organization.

So, what’s the best defense? A robust cyber security system has numerous layers of security smeared across computers, networks, programs and devices. But a powerful cyber security system doesn’t depend solely on cyber defense technology; it also relies on individuals making intelligent cyber defense selections.

The good news? You don’t require to be a specialist dealing in cyber security to comprehend and practice beneficial cyber defense schemes. Stratign’s Cyber Security Solutions are there for you!

Cyber Security Defense Solutions from Stratign

Cyber Security, which involves Cyber Defense Solutions, is one of the swiftest developing markets in the world. Cyber defense concentrates on preventing, identifying and delivering quick responses to attacks or dangers so that no infrastructure or data is tampered with.

With a package of detection, protection, and examination capabilities, Stratign’s Cyber Security Defense Services offer a comprehensive solution to secure sensitive data as well as to safeguard assets. Our hands-on management techniques such as ‘Cross Domain’ and ‘Network Security’ solutions are specifically tailored to your industry and business needs.

Stratign’s cutting-edge solutions assist you to overcome your most complex tasks.

• Advanced threat protection
• Data loss prevention
• Intrusion Detection and Response
• Network security
• Cyber Threat/Vulnerability Analysis
• Incident Handling and Response
• Computer Network Defense
• Cyber Counterintelligence
• Services and consulting
• Endpoint protection
• End to End Cyber Security

In a nutshell, Cyber Security is constantly evolving, which can make it difficult to stay up to date. Staying informed and being cautious online are two of the best ways to help protect yourself, your networks and devices, and your business.

Stratign aced at Milipol Paris 2019

Milipol Paris – where 1,005 exhibitors came together from 53 countries to showcase a plethora of offerings – witnessed a whopping 29,000+ visitors across151 countries. Stratign’s participation at the exhibition received an overwhelming response with our range of state-of-the-art defence solutions.

Held between 19th and 22nd November 2019, the exhibition platform was our springboard to showcase our latest technological developments in the field of defence and cyber security; from communication interception systems to the jamming equipment.

Stratign holds an apex position around the globe in Communication Interception, Signal Processing Systems, Communication Jamming and Communication Security Systems. Our team of professionals showcased their adeptness while addressing the queries of the visitors at our booth. Milipol Paris is an exhibition where company across the globe display their innovative products, services and know-how at the leading event for homeland security and safety! Aimed at welcoming government officials, big corporates, financial institutions and more, this exhibition was an ideal platform for Stratign as we were able to meet people who were keen to know more in depth about our products.

Our experts were equipped with all the required skill sets to assist them with their requirements and display functions and features of our products in detail. Within a span of short time, we were able to add to our client-base and offer them a perfect combination of products that fit their requirements.

Milipol Paris has given a good finish to the year and has fueled us all at Stratign to progress ahead with much zest and passion, for a better and brighter tomorrow.

Leading Defence Solutions Provider Stratign Unveils Cutting-edge Defence Equipment at IDEX 2019

Stratign recently participated in the global defence event IDEX 2019 unveiling some of its most innovative defence technology solutions to a diverse International audience. Organized between 17-21 February in Abu Dhabi, UAE; IDEX 2019 witnessed unveiling of a host of technically-advanced defence equipment from various companies across the globe.

Touted as one of the biggest defence expos in the world, the five-day exhibition had some of the most amazing defence technology equipment on display including armoured vehicles, tanks, firearms, a broad range of drones, communication interceptors and more.

The reputed defence solutions provider Stratign leveraged the global platform IDEX to acquire new business opportunities, interact with industry peers and successfully made a powerful presence & impression throughout the five-day defence technology event. Most significantly, IDEX 2019 served the perfect platform for Stratign to showcase its latest solutions developments in the defence technology arena.

A good number of visitors to IDEX 2019 exhibited keen interest in discovering the underlying technology behind Stratign’s state-of-the-art defence equipment. The company’s experts left no stone unturned to precisely explain the comprehensive features & functioning of all equipment on display – something thoroughly appreciated by the event visitors.

Inbuilt Secure GSM Application, Interception systems, and Communication jammers, especially drone jammers, were among Stratign’s most enquired defence technology solutions at the event. Overall, Stratign’s technically-advanced, feature-enriched defence technology solutions received an overwhelming response from the event audience and that included several positive nods to agreement signing during the event.

Stratign already has a strong foothold in the defence technology solutions market and successful participation in IDEX 2019 has indeed served the purpose of solidifying its existing position further. With more defence technology exhibitions aligned ahead this year, the reputed company would be showcasing some more state-of-the-art defence equipment in upcoming months.

Stratign Makes a Rock-solid Impression at the Tri-service Defence Event “Indo Defence 2018”, Jakarta

A leading defence technology solutions provider, Stratign recently participated in Indonesia’s official Tri-service defence event – Indo Defence 2018. The international trade fair for defence technology was held between 7-10 November in Jakarta, Indonesia and involved exhibition of solutions based on Airborne Platform System & Equipment; Command, Control, Communications & Information; Electronic Systems; Sea Based Platforms & Equipment and More.

Throughout the four day event hosted by the Ministry of Defence, Stratign positively influenced the event visitors with its high-tech range of defence equipment and solutions, thereby making a remarkable impression altogether. Cutting-edge interception systems, Inbuilt Secure GSM Application and Communication jammers were among Stratign’s defence technology solutions enquired most by the event visitors.

Since its very first edition, the International trade fair Indo Defence has been providing global defence technology solution providers the ideal platform to showcase their technology solutions to an international audience besides enabling them establish partnerships with Indonesian defence industry firms. Stratign too utilized this promising platform for displaying its robust defence technology solutions to global visitors, thereby enabling the reputed defence equipment provider to attract more new clients this year.

Indo Defence 2018 brought together key decision makers from defence authorities and companies operating in the region. With participation of visitors from 44 global countries, the four day event did prove to be the perfect platform for Stratign to generate sales, establish new business links, exchange views with industry peers and gain superior return on investment.

Promising discussions with potential clients over signing of business deals and the positive response shown by visitors towards Stratign’s offered technology solutions made Indo Defence 2018 a highly successful event for the reputed company. It’s clearly evident now how Stratign emerged as a prominent gainer from Indo Defence 2018 event.


How Can Interception Systems Make Defense System Stronger

Defense technology has evolved over the years with the evolution of technically advanced missiles, fighter jets, war tanks and other innovative ammunition. While these systems enable defense personnel to stay strong at the time of war, there are some other versatile systems strengthening their capabilities at the backend. Communication Interception is a highly sophisticated technology aimed at propelling defense organizations on the path of secured strategic operations. Here, we will learn about its role in strengthening the defense system.

A Host of Communication Interception Systems Available for Defense Organizations to Deploy

With the necessity to monitor various forms of communication over networks, there was a requirement to deploy complex systems that could help attain this desired objective. Evolving out of this necessity, Communication interception systems paved the path for defense & intelligence organizations to retrieve mission-critical information.

A plethora of communication interception systems are available nowadays ranging from the typical GSM/CDMA interception systems to the more sophisticated satellite interceptors like Iridium interception system, Thuraya interception system and ISAT interception system. The satellite monitoring systems are available as stationary systems for instantaneous interception of several satellites signals or these may be deployed as portable solutions too.

Interception System

Communication Interception Systems Boosting Defense Capabilities…

A typical communication interception system operates by detecting, collecting, analysing and finally decoding the signal gained from target network. The robust system comes equipped with a complete suite of signal collection & processing tools to allow defense organizations retrieve information in a decoded format.

The defense & intelligence organizations can further act on the decoded information to make informed decisions and take corresponding suitable actions – be it deploying additional forces in an area or establishing a secure perimeter around a suspected area, or some other tactical move as required.

So, basically, it’s the convenience of extracting the critical information from the malicious communication – be it over cellular, satellites etc. that enables defense organizations to operate more efficiently in a highly challenging environment. Considering the splendid practicality & usefulness of communication interceptors for the defense sector, it can be said that modern communication interception systems are definitely making the defense system stronger.


LAAD security, an international exhibition of security equipment and programs was held in Trans America Expo Centre, Brazil and was perfectly executed from the 10th to 12th of April. More than 100 brands and organizations participated in the 3 days show attracting about 8,000 visitors. Supported by the Public Security Council, public security forces and armed forces, the exhibition was a success.

The participation of Stratign at LAAD Security was a great achievement and an excellent chance to truly display our capabilities in defence technologies, intelligence organization and maintaining national security.

Being one of the leading technology establishments in law enforcement government agencies, we made sure to give every interested visitor a full tour of the organization and provided as much information as possible.

Our high-tech products such as Satellite Interception Systems, Communications jammers, ISAT and IRIDIUM interception system was put on display which seemed to bring a lot of attention. Our technical and sales team was also present during the entire exhibition providing answers to all their questions.

The technology behind the Anti-drone jammers, THURAYA & VSAT interception systems were conveyed to the attendees for a much better understanding of our technology assets.

Overall, the exhibition provided us with a favourable outcome and introduced us to many potential customers worldwide.

SIGINT -Signal Intelligence

SIGINT is abbreviated from SIGnal INTelligence. It is one of the major forms of intelligence. Signals Intelligence satellites are designed to detect transmissions from broadcast communications systems such as radios, as well as radars and other electronic systems. The Interception of such transmissions can provide information on the type and location of even low power transmitters, such as hand-held radios. However, these satellites are not capable of intercepting communications carried over land lines, such as undersea fiber optic cables.

Signals Intelligence (SIGINT) comprises of Communications Intelligence (COMINT), which is directed at the analysis of the source and content of message traffic. While most military communications are protected by encryption techniques, computer processing can be used to decrypt some traffic, and additional intelligence can be derived from analysis of patterns of transmissions over time. Electronic Intelligence (ELINT) is a devoted analysis of non-communication electronic transmissions. This would include telemetry from missile tests (TELINT), or radar transmitters (RADINT).

Signal detection

Even if a signal is human communications (e.g., a radio), the intelligence collection specialists have to know it exists. If the targeting function described above learns that a country has a radar that operates in a certain frequency range, the first step is to use a sensitive receiver, with one or more antennas that capture signals in every direction, to find an area where such a radar is operating. Once the radar is known to be in the area, the next step is to find its location.

If operators know the probable frequencies of transmissions of interest, they may use a set of receivers, preset to the frequencies of interest. These are the frequency (horizontal axis) versus power (vertical axis) produced at the transmitter, before any filtering of signals that do not add to the information being transmitted. Received energy on a particular frequency may start a recorder and alert a human to listen to the signals if they are intelligible (i.e., COMINT). If the frequency is not known, the operators may look for power on primary or sideband frequencies using a spectrum analyzer signals. Information from the spectrum analyzer is then used to tune receivers to the signals of interest. For example, in this simplified spectrum, the actual information is at 800 KHz and 1.2 MHz.


The earliest, and still common, means of direction finding is to use directional antennas as goniometers so that a line can be drawn from the receiver through the position of the signal of interest. HF/DF knowing the compass bearing from a single point to the transmitter does not locate it. Where the bearings from multiple points, using goniometry, are plotted on a map, the transmitter will be located at the point where the bearings intersect. This is the simplest case; a target may try to confuse listeners by having multiple transmitters, giving the same signal from different locations, switching on and off in a pattern known to their user but apparently random to the listener.

Individual directional antennas have to be manually or automatically turned to find the signal direction, which may be too slow when the signal is of short duration.

Traffic analysis

It is the study of who is signalling whom and in what quantity. When locations are known, usage patterns may emerge, and inferences are drawn. Traffic analysis is the discipline of drawing patterns from information flow among a set of senders and receivers, whether those senders and receivers are designated by location determined through direction finding, by addressee and sender identifications in the message, or even MASINT techniques for “fingerprinting” transmitters or operators. Message content, other than the sender and receiver, is not necessary to do traffic analysis, although more information can be helpful.

GSM and CDMA Cellular Interception Technology

Cellular Intercept is the technology used to monitor cell phone calls and cellular communications.

It is possible to listen to a terrorist and/or criminal cell phone calls and gather Communication Intelligence or COMINT on their dark activities. In today’s unstable environment, the need for intelligence information is vital in preventing and combating crime. Of equal importance is the collection of evidence to convict suspected criminals. Nothing supersedes the need to stop criminals before they strike, and bring outlaws to justice.

What are the popular forms of cellular interception? GSM Intercept has become the most popular form of Cellular Interception as GSM Cellular Interception and CDMA interception together targets Cellular Networks. GSM Intercept as the primary form of cellular interception is based upon the fact that networks such as TDMA / AMPS are being replaced by GSM.

CDMA cellular interception would, therefore, be considered as the secondary popular form of cellular interception. CDMA intercept involves the targeting of CDMA Cellular Networks. CDMA interception together with GSM Interception represents the primary and secondary goals when achieving cellular interception. However, cellular interception of TDMA / AMPS is still available depending upon the geographic and demographic setup of the cellular network (this varies from country to country).

Cellular Interception GSM Intercept is tactical off the air GSM Mobile Phone Intercept System, designed as a GSM Intercept and tracks GSM cellular telephone traffic in a local area. GSM Interception for cellular interception of cell phone conversations is legal l intercept tool.

GSM Interceptor equipment is used for GSM interception to gather intelligence on suspected criminals and terrorists. No hard wired connection to the cellular provider is necessary, as the GSM Interceptor can intercept GSM signals off the air.
Optionally, the GSM Mobile Phone Intercept System can be custom built to fit inside of a surveillance van in order to monitor & track multiple conversations. The GSM Interception system can also record real time off air intercept of GSM phone calls for future review. The GSM Intercept is a tactical intercept, enabling the user to pursue suspects in cities, country sides, and while traveling.

Cellular Interception CDMA intercepts, records, and playbacks CDMA cell phone conversations from a CDMA mobile phone network. The CDMA Cellular Monitor is used to monitor and store CDMA cellular phone conversations of suspected criminals, militants, terrorists, and those committing espionage.

The CDMA Intercept also functions as an SMS Intercept, able to capture SMS (short message service) data. The CDMA Intercept is a passive system, in which no signal is transmitted from the cellular interception system. In addition, the CDMA Intercept does not affect the cellular communication between the cellular phone handset and the cellular service provider. Therefore, the cell phone network receives no electromagnetic interference.

This cellular intercept system operates by automatically detecting the strongest signal in a CDMA service area. Working as a mobile phone intercept on global CDMA networks, the CDMA Cellular Monitor also intercepts and control channels on both sides of a conversation through traffic channels.

GSM Intercept System a5.1

The GSM Interception system can break the GSM A5.1 encryption algorithm used in GSM communications during real time operation enabling Stratign to track and monitor the activities of suspected terrorists and criminals. GSM Interception for the A5.1 protocol deciphers the encryption format used to secure GSM A5.1 communications.

It can also operate with the optional Word Identifier used to capture words or phrases from a pre-determined threat database. This can enable us to conduct GSM Cellular Interception of A5.1 and review communications for trigger words, names, and other audio voice codes used by suspected terrorists or criminals.

The Word Identifier is an integrated optional feature that can enhance GSM Interception for COMINT.

VSAT Interception and Logging Infrastructure

Communications Intelligence (COMINT), involving the covert interception of foreign communications, has been practiced by almost every advanced nation since international telecommunications became available. COMINT is a large-scale industrial activity providing consumers with intelligence on diplomatic, economic and scientific developments.

VSAT Interception

The VSAT Interception and Logging system are designed for the real-time collection and traffic analysis of VSAT Satellite Networks. The system provides total traffic (Voice/ FAX, Data and Multimedia) analysis of TDM/TDMA and SCPC DAMA systems.

GSM Communication Interceptor

Throughout the evolution of cellular telecommunications, various systems were developed without the benefit of standardized specifications. This presented many problems directly related to compatibility, especially with the development of digital radio technology. In 1982, The GSM group (“Groupe Spécial Mobile” [French]) was formed to address these problems.

Global System for Mobile Communications (GSM) is the most popular standard for mobile phones in the world. GSM service is used by over 2 billion people across more than 210 countries and territories. Data communication was built into the system from the very beginning. GSM is an open standard which is currently developed by the 3rd Generation Partnership Project (3GPP).

The advantage for network operators has been the ability to deploy equipment from different vendors because the open standard allows easy inter-operability.

Easy inter-operability definitely raises the question of security. Is the system Secure? Can the security be breached?
GSM was designed with a moderate level of security. The system was designed to authenticate the subscriber using shared-secret cryptography. Communications between the subscriber and the base station can be encrypted. The development of UMTS (Universal Mobile Telecommunications System) introduces an optional USIM (Universal Subscriber Identity Module-the 3G equivalent of the GSM SIM), that uses a longer authentication key to give greater security, as well as mutually authenticating the network and the user – whereas GSM only authenticated the user to the network (and not vice versa).

Keeping this in mind, Communication Intelligence groups have been continuously working for developing various systems which can help you intercept any system of mobile communications. One such system is a GSM Interceptor, a system which is compact, innovative and can monitor and log GSM communications in real time.

The GSM Interception system, thus developed, can be configured in any LAN environment to provide a near-exact physical location of the target and to form a Central Interception Station. The system auto-detects, decodes and records telephone conversations, network information into the digital media (magnetic / optical) present in the system. The system provides Interception of Short Message Service (SMS) traffic. The system of GSM Interception is intended for search, interception and registration of cellular signals on standards GSM-900/1800 in stationary or in a mobile variant.
The need of the hour is pointing towards a more descriptive technology of Data Interception.