Spectrum Guard


Spectrum Evaluation Analysis

Unique Multi-Receiver Design Allows for Simultaneous Spectral, Wireless and/or Wi-Fi Evaluation

Spectrum Guard hardware depicting analysis screen

The Spectrum Guard combines hardware and software into a portable Radio Frequency (RF) detection and monitoring system that is small, lightweight, and easy to use. The software application interface is accessible by users with minimal RF knowledge, but also provides all the tools an experienced operator needs to accomplish the mission. The Spectrum Guard is intended to be used by security professionals for RF signals collection and analysis in support of static or mobile operations. It is ideal for use to evaluate Wi-Fi and cellular spectrum for unauthorized transmissions.

Spectrum Guard’s intuitive software design meets a range of customer missions:

  • Spectrum Management
  • Wi-Fi detection and signal verification
  • RF test and measurement
  • Security Services
  • Federal Communications Commission (FCC) compliance testing
  • Executive travel support
Spectrum Guard display view


  • Spectrum Guard (1kHz – 26.5GHz)
  • Wireless or Ethernet control
  • Automated Power Line Antenna
  • Portable and Lightweight
  • User-Definable Sweep Parameters
  • Discrete Frequency Scans with Individual Channel Settings
  • Automated and Remote Functions Allow the System to Run Unattended
  • Port Switch Capable
  • Zoom Displays for Better Analysis and Signal Measurements
  • Dynamically Adjustable Threshold Sensitivity
  • Signals of Interest Displayed via User-Defined Limits
  • Signals are Presented in Multiple, Easy to Read Formats


Wireless Collection and Analysis:

  • 802.11 Protocol Detection (a,b,g,n and ac)
  • 802.11 MAC Address Display
  • SSID Detection
  • Signal Strength
  • Hardware Manufacturer
  • Packet Identification and Analysis
  • .PCAP Capture and Streaming
  • Bluetooth Protocol Detection and MAC Address Display
  • Zigbee Protocol Detection (700, 800, 900 MHz and 2.4 GHz) and NODE Address Display
  • European Zigbee Protocol Detection (868/915 MHz)
  • MAC/NODE Address Registration
Spectrum Guard with cover closed

Software Functions and Capabilities:

  • Sweep the RF Spectrum with User-Defined Frequency Parameters
  • Maximum Sweep up to 50 GHz/sec
  • Frequency (Channel) Scan
  • Multiple Visual Representations of the RF Spectrum
  • 2D Display, Waterfall Display, and Display Zooming Feature
  • Signal of Interest Frequency List
  • Real-Time Signal Analysis
  • One-Button or Automatic Audio Recording
  • Classification of Common Digital and Analog Signals
  • Video Recreation (NTSC/PAL/SECAM)
  • Post-Collection Data Analysis Tools
  • Colored Raster
  • Consolidated Exceedance List


Interested in learning more about CTL|SystemWare?

We'd like to hear from you.

7063 Columbia Gateway Drive, Suite 110
Columbia, MD 21046

[Phone]  410.579.1300
[Email] [email protected]