New 26.5 GHz Signal Scanning Recorder for Military Intelligence Applications

Pentek has introduced a new Signal Scanning and Recording Rackmount System. The RTR 2654 26.5 GHz RF Sentinel Intelligent Signal Scanning Rackmount Recorder is part of their Talon Signal Recording and Playback Systems product family. The RTR 2654 combines the power of a Pentek Talon Recording System with a 25.6 GHz RF tuner and Pentek's Sentinel Intelligent Signal Scanning Software. It automatically scans the RF spectrum from 800 MHz to 26.5 GHz for signals of interest and monitors or records bandwidths up to 500 MHz, making it very suitable for military, security and government intelligence (SIGINT, COMINT and ELINT) applications.

The system used a Pentek Model 78141 Jade transceiver module as its data acquisition engine. One of its dual 3.2 GS/sec 12-bit A/D converters is operated at a sample rate of 2.8 GS/sec. The Model 78141 is coupled to the 500 MHz bandwidth IF output signal of a 6 GHz RF tuner front end with excellent dynamic range across its entire spectrum. A digital downconverter (DDC) in the Model 78141 provides frequency zooming for signal bandwidth steps of 500, 280 or 140 MHz.

Sentinel Intelligent Signal Scanning

The Sentinel recorder provides automated signal monitoring and detection. The user specifies a start and stop frequency for the scan, covering any range between 800 MHz and 26.5 GHz. The RF tuner and DDC step across the scan range in consecutive bands, each programmable up to 500 MHz in width. Threshold RF energy in each band can be detected to trigger creation of a waterfall spectrum display over the entire scan.

Any band can be selected for continuous real-time monitoring and/or recording. In addition to manual band selection, a recording can be automatically started during a scan by configuring signal strength threshold levels to trigger a recording of the detected band. Once a signal of interest is detected, the real-time recorder can capture and store hundreds of terabytes of data to disk, allowing users to store data spanning multiple days.

Ease of Operation

Sentinel recorders are built on a Windows workstation with an Intel Core i7 processor and provide both a GUI (graphical user interface) and API (Application Programmer’s Interface) to control the system. Systems are fully supported with Pentek’s SystemFlow software for system control and turn-key operation. The SystemFlow software has been enhanced to include intelligent scanning and integrated control of the RF tuner and optional RF upconverter. The software provides a GUI with point-and-click configuration management and can store custom configurations for single-click setup. It also includes a virtual oscilloscope, spectrum analyzer and spectrogram to monitor signals before, during and after data collection.

Post processing and analysis software tools like MATLAB can be installed on the Talon RTR 2654 platform. Data files are recorded to the Windows native NTFS file system, which allows operators immediate access to recordings without the need for any file format conversion.

The Talon RTR 2654 is packaged in a 4U 19" rack-mountable chassis, with front panel removable and hot-swappable Solid State Drives (SSDs), front panel USB ports and I/O connectors on the rear panel. The SSDs are available in 7.6 to 245.7 TB configurations, supporting RAID levels 0, 5 or 6. Options include GPS time and position stamping and 10GbE or 40GbE offload facilities. Pricing starts at $125,000 USD.


  • Country: United States
More News from Pentek