All solid state X-band Doppler weather radar
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Meteorological Products
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Product Overview
The "Xiangyun" series weather radar, a solid-state X-band Doppler weather radar, monitors and forecasts weather phenomena out to 300 km. It effectively fills the coverage gaps left by S-band and C-band weather radars and serves meteorological departments, weather modification agencies, water resources authorities, flood control agencies, airports, oil fields, salt fields, and other organizations.
Model | YLD1-B (Single-Channel) | YLD1-C (Compact) | YLD1-CD (Compact Dual-Polarization) | YLD1-D (Dual-Polarization) | YLD1-D (Dual-Polarization) |
Detection Range | Surveillance: 300 km；Quantitative: 150 km | Surveillance: 100 km；Quantitative: 75 km | Surveillance: 100 km；Quantitative: 75 km | Surveillance: 300 km；Quantitative: 150 km | Surveillance: 300 km；Quantitative: 150 km |
Antenna Diameter | 2.4 m | 1.2 m | 1.2 m | 1.6 m / 1.8 m / 2.4 m | 1.8 m / 2.4 m |
Operating Frequency | Selectable fixed frequency within 9.3–9.5 GHz | ||||
Transmitter Power | 200 W | 30 W / 100 W | 100 W | 200 W / 400 W | 800 W |
Radome | Yes | Optional | Optional | Yes | Optional |
Weight | ≤ 500 kg | ≤ 80 kg (each part ≤ 30 kg after disassembly) | ≤ 500 kg | ≤ 500 kg | |
Installation Method | Fixed / Vehicle-mounted / Containerized | ||||
Scanning Mode | PPI, RHI, Volume Scan, Sector Scan, Fixed-point | ||||
Power Requirement | AC 220 V, 50 Hz, power consumption ≤ 1 kW; UPS and generator optional | ||||
Parameter Measurement Range | Reflectivity: -15 to +75 dBZ；Velocity: ±32 m/s；Spectral Width: 0 to 16 m/s | ||||
Meteorological Products & Terminals | Over 30 meteorological products, supports up to 200 user terminals | ||||
YLD1-D45D-Q3
Standard Full Solid-State X-Band
Doppler Weather Radar
Item | Sub-item | Performance Specification |
Radar Configuration |
| Dual-polarization Doppler |
Operating Frequency |
| Selectable within 9.1–9.5 GHz in 1 MHz steps |
Service Life (System) |
| ≥15 years |
Detection Range |
| Surveillance: ≥150 km |
Near-range Blind Zone |
| ≤500 m |
Resolution | Range | ≤75 m |
| Angular | ≤1° |
Measurement Range | Reflectivity (Z) | –15 to +80 dBZ |
| Radial Velocity | ±48 m/s |
| Spectral Width | 0 to 16 m/s |
| Differential Reflectivity (Zdr) | –7.9 dB to +7.9 dB |
| Differential Propagation Phase Shift (Φdp) | –180° to +180° |
| Specific Differential Phase (Kdp) | –2°/km to +10°/km |
| Correlation Coefficient (ρhv) | 0 to 1 |
| Depolarization Ratio (LDR) | –35 dB to +6 dB (Single-transmit dual-receive mode) |
Parameter Measurement Accuracy (Standard Deviation) | Reflectivity (Z) | ≤1 dB |
| Radial Velocity | ≤1 m/s |
| Spectral Width | ≤1 m/s |
| Differential Reflectivity (Zdr) | ≤0.2 dB |
| Differential Propagation Phase Shift (Φdp) | ≤3° |
| Specific Differential Phase (Kdp) | ≤0.2°/km |
| Correlation Coefficient (ρhv) | ≤0.01 |
Minimum Detectable Reflectivity Factor (at 50 km, 75 m resolution, simultaneous transmit and receive) |
| ≤3 dBZ |
System Phase Noise |
| ≤0.1° |
Power Ratio Before and After Filtering |
| ≥55 dB |
Actual Ground Clutter Suppression Capability |
| ≥35 dB |
Occupied Bandwidth |
| ≤30 MHz |
Output Parameters |
| Pre-filter reflectivity, post-filter reflectivity, radial velocity, velocity spectral width, differential reflectivity (Zdr), differential propagation phase shift (Φdp), specific differential phase (Kdp), correlation coefficient (ρhv), signal-to-noise ratio (SNR), depolarization ratio (LDR) |
Power Supply Requirement |
| Single-phase AC 220 V ±10% or three-phase AC 380 V ±10%, 50 Hz ±5% |
Weight (Standard Configuration, Reference Value) |
| ≤1200 kg (excluding radome) |
Environmental Requirements | Operating Temperature（without the temperature regulating equipment) | 0 to +40 °C |
| Storage Temperature | –40 to +60 °C |
| Operating Humidity | ≤90% (+30 °C) |
| IP Class | IP54 |
| Operating Altitude | ≤5000 m |
| Shock, Vibration, Rain Resistance | Complies with national regulations and meets field transport requirements |
| Immunity | Power supply interference, electromagnetic interference (EMI), radio frequency interference (RFI) |
| Others | Waterproof, anti-mold, anti-salt fog |
Power Consumption (Whole System) |
| Normal operating power consumption: ≤1200 W，Peak power consumption: ≤3000 W |
Mean Time Between Critical Failures (MTBCF) |
| ≥5000 h |
Installation Method |
| Fixed installation |
Startup Time |
| ≤5 min |
Microwave Radiation Safety |
| Microwave leakage power density shall comply with GJB 5313-2004. |
Safety Markings |
| Clear and conspicuous warning labels shall be placed at microwave leakage points, mechanical rotating parts, high-voltage locations, etc. |
Interchangeability |
| Backup parts, components, subassemblies, and functional units of the radar shall be field-replaceable without requiring adjustment for normal operation. |
Electromagnetic Compatibility (EMC) |
| The radar shall incorporate mains filtering and EMI protection, including electrostatic shielding and electromagnetic shielding. Analog ground, digital ground, and safety ground shall be strictly separated. Lightning protection grounding shall be implemented independently. |
Safety |
| The radar shall incorporate safety design features to ensure personnel and equipment safety during manufacturing, installation, transportation, storage, operation, and maintenance under specified conditions. The radar system’s power switch and pedestal maintenance switch shall feature self-locking mechanisms and indicator lights. |
Lightning Protection Requirement |
| Surge-protective filters shall be installed at the radar power input. All outdoor cables shall be shielded cables or fiber optic cables. |
Insulation |
| Insulation resistance between primary power circuits and earth shall exceed 1 MΩ. |
Appearance Quality |
| The radar’s overall appearance shall be harmonious and consistent. External surfaces shall be free of dents, impacts, cracks, or deformations. Plating and coatings shall show no blistering, cracking, or peeling. Metal parts shall be free of corrosion, burrs, and other mechanical damage. |
Markings and Designators |
| Enclosures, chassis, plug-in modules, and cables shall bear unified numbering and markings compliant with national standards. |
Environmental Noise Requirement |
| ≤85 dB |
Required Nameplate Information on Radar |
| Radar name, model (designation); serial number; date of manufacture; manufacturer’s trademark. |
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Bella Yang
E-mail: yangqing@htmw.cn / xinqing_2011@foxmail.com
Tel/Whatsapp: +86 188 1011 7965
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