TCI Model 803 is a compact Direction Finding (DF) subsystem for Communications Intelligence (COMINT) and Electronic Warfare (EW) applications

TCI Model 803 VHF/UHF/SHF DF Subsystem

  • Description
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The TCI Model 803 is a compact Direction Finding (DF) subsystem for Communications Intelligence (COMINT) and Electronic Warfare (EW) applications. The 803 integrates seamlessly with TCI’s Blackbird NextGen COMINT / EW platform to provide a complete signal search, collection, direction finding and geolocation solution.

The 803 continuously scans, detects, DFs, and records DF results in tasked frequency channels on a 4 or 40 MHz instantaneous bandwidth. Bandwidth is tuneable over the 20 to 3,000 or 20 to 8,000 MHz frequency ranges. The dual 40/4 MHz wideband DF capability enables the Model 803 to detect and capture weak signals in crowded RF environments using the 4 MHz instantaneous bandwidth and detect short-duration, frequency-agile and wide-bandwidth signals using the 40 MHz bandwidth.

The 803 is available with any of TCI’s single-band VHF/UHF/SHF monitor and DF antennas. Antenna options include the Model 641 for high-accuracy DF on vertically polarized signals in fixed and mobile applications, the compact, low-profile Model 645 for mobile and transportable applications from 20 MHz to 3,000 MHz. For higher frequencies, the Model 803 can use the Model 647 antenna, the first antenna to provide high-accuracy DF on vertically polarized signals in fixed and mobile applications from 20 MHz to 8 GHz.

Integrated hardware and software coupled with modern DSP provide multi-mission support for COMINT and range operations. TCI’s wideband, multi-channel architecture provides accurate DF performance in complex signal environments. Multiple 803 units can also be networked together for triangulation. In addition, a mobile 803 system can perform TCI’s homing DF to track down signals of interest.

• Comprehensive intercept and location of all signals from 20 to 3,000 MHz or 20 to 8,000 MHz.
• 3 GHz/sec fast-scanning detection with simultaneous DF of all detected signals at frequency channelization of 25 kHz (DF First™ technology).
• Multi-mission support using field-proven DF algorithms.
• Detection and DF of multiple modern signals, such as frequency hopping, agile and burst signals.
• Supports multiple signal types simultaneously starting at transmission.
• Flexible, modular and compact VME architecture supports fixed, mobile, and transportable configurations.
• Fully compatible with TCI 850 Blackbird NextGen Integrated Signal Search, Collection, Geolocation and Analysis system.
• DF results available in real-time and recorded for later analysis. Full mission replay for:
- Post-facto analysis with selective signal isolation using powerful, interlinked graphical displays.
- Post-facto triangulation of all signals in full 20 MHz to 3 GHz or 20 MHz to 8 GHz band or all tasked 
• Effective support of both frequency control/clearing and frequency scanning phases.
• Selectable wideband 4 or 40 MHz (VHF/UHF/SHF) instantaneous bandwidth.
• Auto-configuring client software provides the same look and feel for measurements from VHF through SHF ranges.
• Choice of multiple VHF/UHF/SHF direction finding and monitor antennas.
• Client-Server architecture with full networking capability.
• Rugged design minimizes size, weight, and power consumption.
• Built-in self-test and calibration.
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US, European and Israeli customers requesting information on COMINT and Drone Detection systems, please contact Ray Blakeman.

Please click here to submit an HF antenna inquiry. All other antenna inquiries should contact their regional business development manager based on the map below.