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<br />Page 14 <br /> <br />Table 3. General system specifications of the Skywater C-band <br />radar (SWR -86) <br /> <br />Input power 220 V, 1 phase, 60 Hz <br /> <br />Operating RF frequency <br /> <br />5550 MHz <br /> <br />Antenna beam width <br /> <br />10 (4.27-m reflector) <br /> <br />Minimum discernible signal <br /> <br />-113 dBm (LOG) <br />-113 dBm (UN) <br /> <br />Feed type <br />Pulse width <br /> <br />Horizontally polarized <br />2 ].J s <br /> <br />Pulse repetition frequency <br /> <br />207/414 per second <br /> <br />Dynamic range <br /> <br />78 dB <br /> <br />I F frequency <br /> <br />30 MHz <br /> <br />Range intervals <br /> <br />0.125, 0.25, 0.50, 1.0, 2.0 km <br /> <br />Scope <br /> <br />PP I, RH I <br /> <br />4. Acoustical sounder <br /> <br />An AeroVironment Model 2000 doppler acoustic sounder will be <br />provided by NAWC (North American Weather Consultants) for <br /> <br />operation at the Happy Jack site. The system uses two antennas <br /> <br />to provide horizontal wind direction and speed from the doppler <br /> <br />shift of the reflected 1500 Hz signal. System resolution is <br />about 3 degrees and 0.2 m s-l according to the manufacturer. <br /> <br />The system will provide 15 minute mean winds at 30 m intervals <br />