Baron’s innovative KHDD Series Doppler Weather Radar (DWR) system architecture is composed of equipment and components, with interoperable capabilities and reconfigurable features, to meet the unique requirements of varying sites and user needs.

The KHDD Series Doppler Weather Radars are standalone turnkey systems incorporating cutting edge signal processing technologies for accurate detection, processing, and distribution of Doppler radar data and derived meteorological product displays.

The KHDD Series DWR uses the latest Doppler radar technology to acquire, process and display volumetric scans of the atmosphere. Under the Radar Data Acquisition and Control System (RDACS) software control, Doppler radar data is acquired under operator-defined programmable volumetric scans.

CUSTOMIZABLE TRANSMITTER OPTIONSThe KHDD Series C-band configurations include a Klystron transmitter driven by a field-proven solid-state modulator providing extremely reliable operation with precision signal processing for unsurpassed clutter suppression performance. The KHDD-250C offers a 250 kW transmitter, while the KHDD-1000C gives the user a higher power output solution at 1 megawatt.

2D AND 3D VISUALIZATIONAt the heart of the radar control acquisition process are Baron’s 2D OmniWxTrac or 3D VIPIR display stations. These display stations are patented software visualization tools designed to visualize the movement of storms, predict storm trajectories as well as detect hazardous weather such as tornados, hail, wind shifts, gust fronts, and precipitation intensity/velocity profiles—all in an automated, high-quality, and timely reporting visualization system.

THE LEADER IN DUAL-POLARITYAll KHDD Series DWR’s are available in single or dual-polarization configurations. With the dual-polarization option employed, both systems provide the user with measurement improvements in precipitation intensity; as well as ushering in the capability to distinguish accurately between the different precipitation types, including drizzle, rain, snow, graupel, hail, and rain/hail mixes.

KLYSTRON HIGH DEFINITION DOPPLER WEATHER RADAR SYSTEM

KHDD Series Product Configuration Features:• Completely solid-state modulator• Field proven extended life Klystron

technology• Advanced Doppler signal processor

with multi-channel IF digital receiver• Flexible adaptive clutter filter

selection (Up to 16 time domains, 16 frequency domains with second

trip cancellation feature)• Dual-polarization ready antenna

feed to ease the transition to dual-polarization future implementation at the user’s discretion

• 24/7 local or remote unattended operation with remote maintenance monitoring service option

• Comprehensive BITE system for optimal real-time system monitoring

• Internal fault protection features to enhance safety of the radar system and personnel

• Volumetric scanning modes with sector scanning feature for high precision data acquisition of meteorological areas of interest

4930 Research Drive • Huntsville, AL 35805 • P (256) 881-8811 • F (256) 881-8283 • sales@baronweather.com • www.baronweather.comOmniWxTrac and VIPIR are registered trademarks of Baron Services, Inc. The information in this publication is accurate as of its publication date; such information is subject to change without notice. ©2013 Baron Services. All rights reserved.11/14

High-resolution velocityimage from a KHDD-1000C/DP.

Reflectivity image of a tropical storm from the KHDD-1000C/DP radar system

in Tampa, Florida.

KHDD-250C and -1000C

Baron offers numerous toweroptions for tower height and design,in addition to installation on existing

tower structures.

General Peak Power 250 kW or 1 MWOperational Frequency 5600 – 5650 MHz Polarization Single: Horizontal; Dual: STAR, H-OnlyPulse Width Modes Adjustable, 0.4 - 4.5 μsecPulse Repetition Frequency 250 - 3000 Hz Typical Operational Range Up to 480 km Range Resolution Down to 25 mTransmitterType Klystron Peak Output Power 250 kW or 1 MWRF Duty Cycle 0.0015 Phase Stability < 0.1° rms Internal Protection Arc Detector Sensor Module Frequency Modulation Linear, non-linear and steady Pulse Widths (nominal) 0.8 μs, 1.6 μs and 3.0 μs Modulator Solid-State IGBT Switched Pulse Repetition Frequency 0.8 μs : 250 – 1875 Hz(nominal) 1.6 μs : 250 – 937 Hz 3.0 μs : 250 – 500 Hz Velocity De-aliasing 2:3, 3:4 and 4:5 (Dual PRF Selection) ReceiverType Super-heterodyne, Single down conversionNoise Figure 2 dB maximum Linear Dynamic Range > 100 dB for a 2 µs pulse Minimum Detectable Signal -114 dBm for a 2 µs pulse IF Digitizer 16-Bit Doppler Signal ProcessorType 3 Multi-channel digital receiver (opt. 5 channel) 16-bit per polarizationIF Frequency 60 MHz IF Sampling Multi channel, up to 120 MHz sampling Maximum Range Bins Up to 4000 per channel Minimum Range Resolution 25 m Processing Modes Pulse Pair (PP) or Discrete Fourier Transform (DFT/FFT)Clutter Filters Time Domain IIR Filtering, Frequency Domain Adaptive Filtering with > 55 dB clutter rejectionAntennaType Parabolic, prime focused reflector with scalar feedDiameter 4.3 m 8.5 mGain > 45 dB > 50 dBBeam-width 0.850 0.450

Side-lobes ≥ 30 dB down ≥27 dB downCross-Polarization Isolation ≤ -35 dB Polarization Single: Horizontal; Dual: STAR, H-OnlyPedestalPedestal Type Elevation over Azimuth Azimuth Movement 360° continuous Elevation Movement -2° to +90° Positional Accuracy < 0.05° Scanning Rates Programmable 0 to 6 rpm RadomeConstruction Fiberglass Sandwich or Membrane Diameter 5.5 m, 8.5 m, 12.6 mTransmission Loss, Dry < 0.3 dBCondition, One-way Increase of the first side < 1 dBlobe peak due to radome Attenuation difference < 0.2 dB between H & V polarizations for all azimuths & elevations Bore-sight change due < 0.02°to the radome Geometry Faceted, truncated sphere CalibrationSystem dBZ0 < 1 dBdetermination accuracySystem ZDR bias < 0.1 dB (In Dual Polarization (STAR) Configuration)determination accuracy System PHIDP < 1° (In Dual Polarization (STAR) Configuration)determination accuracy System LDR bias < 0.1 dB (In Dual Polarization (H-Only) Configuration) determination accuracy Meteorological DataSingle Polarimetric Mode T, Z, V, WDual Polarimetric Mode T, Z, V, W, ZDR, PHIDP, RHOHV, KDP, LDRH (in H-Only configuration)