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Radio Monitoring / 
Signal Analysis

SIG-INT (Signal Intelligence) System

Radio Monitoring &
Signal Analysis Products

  • VHF-UHF Digital Radio Monitoring System

  • Wi-Fi Interception System

  • HF and VHF-UHF Monitoring System

  • Wideband Search and Interception Receiver

  • Multi-Channel Interception and Logging System

  • RF/IF Recording and Playback System

  • Wideband Direction Finder

  • Signal Classification and Analysis System

  • Microwave Monitoring, Logging and Analysis

  • GSM Backhaul Monitoring Systems

Radio Monitoring &
Signal Analysis Products - Specifications

VHF-UHF Digital Radio Monitoring System

  • Single system covering full band from 25MHz to 6000 MHz

  • True Wideband Surveillance

  • Compact, Portable, Configurable

  • Multichannel Wideband Receiver can be equipped with up to 4 independent broadband reception channels of 40MHz IBW each.

  • Single system for signal receiving, demodulation, deciphering, decoding and archiving .

  • Capable of performing automatic search for sources of radio signal of VHF communication, including sources which use pseudo-random adjustment of working frequency.

  • Support automatic classification of detected communication channels used by both military and commercial analog radios and digital radios networks

  • Pre-integrated with Deciphering Unit to decrypt the intercepted communication channels from radio stations such as TETRA, DMR, MOTOROLA etc.

  • Automatic interception and decoding of communication sessions, storage of all intercepted content and service information in a database

Wi-Fi Interception System

  • Wi-Fi Interception System can intercept both secured and unsecured WiFi networks

  • Integrated with HTTPS/SSL Interception Module

  • Interception of e-mails, browsed webpages, chats and VoIP sessions along with sessions related information from target WiFi networks

  • Interception of social media network like Facebook, Twitter

  • Interception of Gmail, Yahoo Mail

  • Can provide target's webmail, Gmail, Yahoo Mail, Facebook, Twitter account's user ID and password

  • Can intercept both 2.4 and 5 GHz frequency bands

  • Carries out the entire interception process in a single end-to-end solution

  • Employs several kinds of tools to obtain targeted network access

  • Offers robust field performance based on proprietary technology

  • Features a tactical design for covert operation in crowded areas

  • Wifi Interception System can also provide active measures to jam the targeted WiFi network

  • Can break WEP, WPA-Personal, WPA2-Personal and WPA2-PSK secured WiFi networks

HF and VHF-UHF Monitoring System

  • Designed to cover HF and VHF/UHF range of frequencies

  • Specialist wideband SDR receivers for search, interception and multi-channel monitoring

  • Spectrum analysis with advanced markers

  • Panorama spectrum and waterfall displays with zoom functions

  • Wideband recording of radio transmission for detailed analysis

  • Integrated DF application in all receivers

  • Specialist software based DF capability for map integration and location finding

  • Advanced software based analysis and decoding of protocols of data transmission

Wideband Search and Interception Receiver

  • SDR based high speed integrated wideband search receiver

  • Instantaneous real-time bandwidth up to 40 MHZ

  • Quasi real-time frequency spectrum by complex FFT algorithms

  • High probability due to wide bandwidth and high-speed scanning

  • Wide-band direction finding processor

  • Flexible compatibility for system integration

  • Allows search and collection by direction of interest

  • Compact design with graphical user interface

Multi-Channel Interception and Logging System

  • Compact design with graphical user interface

  • Up to 40MHz wide instantaneous real-time bandwidth

  • Real-time IF panorama display by complex FFT algorithm

  • High channel selectivity by digital filtering

  • Excellent precision and sensitivity

  • Raw data IF and demodulator AF recording

  • Built-in direction finding processor

  • Flexible compatibility for system integration

RF/IF Recording and Playback System

  • Can be used to record/playback the signals RAID based storage

  • Can record the signals on standard PC hard disk

  • Compact design with easy to use graphical user interface

  • Up to 40MHz wide instantaneous real-time bandwidth

  • Digitally selectable recording bandwidth with tunable center frequency

  • Analog or digital input and output

  • Up to 8TB storage capacity

  • Removable drives

  • Stand-alone or network access

Wideband Direction Finder

  • Basic wideband and narrowband DF capability built into receivers

  • DF capability for HF and VHF/UHF frequency bands

  • Software based integration of multiple DF stations for location fixing

  • Map integration with DF system using Mapinfo / Mappoint software

Signal Classification and Analysis System

  • Can perform four channel analysis, demodulation and processing of narrowband digitally modulated signals (20 Hz - 20 KHz).

  • Can be used for interactive determination of modulation type and bit stream analysis

  • Can classify the type of signal

  • Robust demodulation of single & multi-carrier ASK, FSK, MFSK,PSK, Hybrid, QAM16, various CCITT/ITU variants and OFDM

Microwave Monitoring, Logging and Analysis

  • Interception Range 0.5 MHz - 18 GHz providing total microwave communication frequency range monitoring capability

  • Equipped with fast search receiver and monitoring receivers

  • PCM/TDM Demodulator provides real-time Microwave signal demodulation/ demultiplexing and decoding

  • FDM De-multiplexer can be housed in the chassis for easy audio output in case of presence of FDM Signals

  • Logging of Voice Grade Channels (30 Channels in Case of E1) can be performed at the hard disk or Add on high capacity disks

  • Portable system housed in Rugged Chassis for secure transportation

GSM Backhaul Monitoring Systems

  • Can be used to intercept GSM, UMTS and 4G cellular backhaul running over microwave

  • Support up to 1024 QAM demodulation

  • BTS – BSC Link Monitoring

  • Can automatically search emissions from radio relay stations to determine the direction and parameters to the emission source.

  • Signal interception from radio relay stations at a distance up to 30 km.

  • Capable of intercepting and logging voice, SMS, facsimile, data, including service channels from GSM, UMTS, LTE etc which are using microwave as a media.

  • Logging of communication sessions along with session details.

  • De-multiplex the bit-stream up to E1 level

  • Can be used to determine direction to the source of MW signal by azimuth and elevation angle and to plot it on integrated digital map

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©️ 2023 GI INTERNATIONAL LLC.

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