Rohde and Schwarz DDF007 Portable Direction Finder

The Rohde & Schwarz DDF007 is a portable direction finder engineered for rapid signal source location across 20 MHz to 6 GHz. It combines a fast wideband integrated receiver with precision DF methods—correlative interferometer and Watson-Watt (below 173 MHz)—to deliver bearing accuracy of ±2° RMS or 1 to 3 degrees RMS. Field-deployable and weighing 2.5 kg or 2.7 kg, the instrument supports spectrum monitoring, interference hunting, and security operations with minimal operational overhead.

– Technical Specifications

• Frequency range: 20 MHz to 6 GHz
• Direction-finding methods: Correlative interferometer; Watson-Watt (R&S®ADD107, below 173 MHz)
• Receiver sensitivity: −110 dBm typical
• DF accuracy: ±2° RMS or 1 to 3 degrees RMS
• IF spectrum display: up to 10 MHz panorama bandwidth
• Spectrum scan speed: up to 200 channels/second or 2 GHz/s (with DDF007-PS option)
• Dimensions: 250 mm × 150 mm × 70 mm
• Weight: 2.5 kg or 2.7 kg
• Battery life: up to 8 hours continuous
• Operating temperature: 0 to 50 °C
• Storage temperature: −20 to 60 °C

– Key Features

• Integrated fast wideband receiver with detailed IF spectrum visualization
• Waterfall display for temporal signal monitoring
• Wideband signal demodulation and occupied bandwidth measurement
• Polychrome spectrum option for resolving superimposed and pulsed signals
• Optional signal analysis in receive mode
• USB and Bluetooth connectivity for data transfer and integration
• Panorama scan capability up to 2 GHz/s with DDF007-PS option
• GPS-based radiolocation mapping with DDF007-GPS option (OpenStreetMap display)

– Typical Applications

• Spectrum monitoring and interference hunting
• Mobile and field-based direction finding
• Search and rescue operations in difficult terrain
• Radio interference source location
• Security applications and force protection missions
• Large-event radio monitoring

– Compatibility & Integration

The DDF007 operates with compact DF antenna arrays including the R&S®ADD107, R&S®ADD207, and R&S®ADD307. These antennas feature integrated GPS modules and electronic compasses. The receiver integrates into the R&S®MP007 portable direction-finding system for multi-platform deployments.