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Vaisala Weather Radar WRK200
Overview
For customers who require coherent transmitter, Vaisala Dual Polarization Doppler Weather Radar WRK200 is equipped with klystron transmitter technology. WRK200 offers exceptional spectral purity and phase noise performance. Vaisala dual polarization technology supports already proven applications like HydroClass™ - real time operational hydrometeor classification software. This software is the first COTS product that uses real time polarization measurement for classifying targets into categories such as hail, snow pellets, snow or rain. It can also be used to identify and filter out non-meteorological targets.
Vaisala Weather Radar provides accurate measurement, easy maintenance access, low maintenance costs, semi-yoke style antenna/pedestal with a low momentum of inertia and weight. All hardware and software used in WRK200 radar has been optimized for superior dual polarization data quality. From excellent dual pol performance antenna to latest dual polarization signal processing algorithms.
Technical Specifications
| Transmitter | |
| Type | Klystron VKC8387 |
| Operating frequency range | 5.6 - 5.65 GHz |
| Peak Power | 250 kW |
| Modulator | Solid State |
| Antenna | |
| Type | Center-fed parabolic reflector |
| Diameter | 4.5 m |
| Gain (typical) | 45 dB |
| Beam width | <1 degree |
| Pedestal | |
| Type | Semi yoke elevation over azimuth |
| Elevation Range | -2 to 108 degrees |
| Maximum Scan Rate | 40 deg/sec |
| Operating environment | -40° to +55° C, 0 to 95% RH, non condensing |
| Storage environment | -50° to +60° C |
| RF-to-IF Receiver | |
| Type | Dual stage, dual channel if down converter |
| Dynamic Range (1µs pulse) | > 99 dB |
| IF Frequency | 442 / 60 MHz |
| Digital IF Receiver and Signal Processor | |
| Type | Vaisala Sigmet RVP900 |
| Clutter filters | fixed, adaptive or GMAP to >55 dB clutter cancellation |
| IF Digitizing | 16 bits, 100 MHz in 5 channels |
| Radar Controller | |
| Type | Vaisala Sigmet RCP8 with IRIS/Radar |
| System Specifications | |
| Physical dimensions Cabinet (w x h x d): | 1400 x 1800 x 1300 mm |
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