The Rohde & Schwarz EVSG1000 is a portable, high-precision analyzer for commissioning and servicing ground-based air navigation and communication systems. It delivers comprehensive analysis across ILS, GBAS, VOR, Marker Beacon, and ATC COM signals with field-hardened design and battery operation. The instrument adheres to ICAO standards (Document 8071, Annex 10) and combines low phase noise, exceptional dynamic range exceeding 130 dB, and measurement speeds up to 100 data records/s.
– Technical Specifications
• Frequency Range: 70 MHz to 410 MHz
• Frequency Setting Resolution: 100 Hz (ILS, VOR); 10 Hz (COM, GBAS)
• Frequency Measurement Resolution: 1 Hz
• Internal Reference Accuracy: 5 × 10⁻⁸ (nominal initial calibration); aging 1 × 10⁻⁷ per year
• Temperature Drift (–10 °C to +50 °C): < 0.6 dB (nominal)
• SSB Phase Noise @ 110 MHz: –105 dBc (1 Hz) @ 10 kHz offset; –115 dBc @ 25 kHz; –125 dBc @ 100 kHz; –145 dBc @ 1 MHz
• Noise Floor: 130 dB
• Measurement Speed: 100 data records/s (high measurement rate mode)
• Third-Order Intercept Point (TOI): > 20 dBm (normal mode, 2 × –10 dBm); > 40 dBm (with K23 option)
• 1 dB Compression Point: +8 dBm (two-tone, normal mode)
– Modulation Analysis Capability
• ILS/VOR/MB IF Bandwidth: 1, 3, 6, 10, 18, 25, 36, 50 kHz (25 kHz default)
• Input Level Range: –80 dBm to +10 dBm
• Measurement Time: ≥ 100 ms (95 % confidence)
• Azimuth Measurement Uncertainty: ≤ ±0.05°
• AM Modulation Depth Uncertainty: ± 2 % (standard); ≤ 0.5 % (voice/identifier)
– Key Features
• Preselection filtering for dedicated frequency bands (Marker Beacon, ILS, VOR, COM ranges)
• Residual spurious response < –100 dBm (low noise mode)
• Autoranging and selectable attenuation modes (0 dB, 15 dB) for signal conditioning
• Portable form factor with integrated battery for field deployment
– Typical Applications
• ILS and GBAS ground station commissioning and periodic verification
• VOR and Marker Beacon site measurements
• ATC communication system testing and troubleshooting
• ICAO compliance verification for aviation navigation infrastructure
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