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000293 HANDAR Contributions HANDAR has made significant contributions to the hydro-meteor- ological state-of-the-art. Some of these innovations include: · The first synthesized ALERT radio transmitter · The first synthesized GOES radio transmitter · The 'irst weather station transmitting data by synthesized voice either by radio or telephone · The first FAA Type Certified Automated Weather Observation System (AWOS) that meets Advisory Circular (AC)150/5220-16 HANDAR's Capabilities - Engineering, Manufacturing, Quality Assurance, and Customer Service The manufacturing of environmental data collection equipment is HANDAR's business. This equipment must be rugged and e>:tremely reli- able to survive in the most severe environments. For this reason, HANDAR emphasizes the element of quality in all phases of the organi- zation to best serve our Customer needs. HANDAR's Engineering Department commands e>:pertise in digital hardware and software design, programming, analog and radio frequency design, as well as the experience required in the development of ruggedized data acquisition systems. Innovative mechanical designs is another key element used to make water level sensors and tipping buckets for simple and reliable field operation. Low power consuming CMOS compon- ents are used to extend operating life of these battery operated systems and components. All HANDAR designs are tested to operate under extreme temperature conditions ranging from -400C to +500C in most cases. In 0 r d e r for fin ish e d pro d u c t s tom e e t HANDAR' s hi g h qua lit y standards, the Manufacturing Department concentrates on quality con- trol in several areas. First, reliable components and materials vendors are selected. These purchased materials are thoroughly tested to ensure they comply with specifications prior to assembly. Crystal oscillators, for example, are put through sixteen hours of extensive temperature cycling to make sure they meet their stringent aging and drift characteristics. All equipment, including components, sub-assemblies, and cables, are carefully assembled in our factory. Quality assurance personnel check all PC boards and sub-assemblies to guarantee that all parts are properly loaded and wired. Fully operational electrical tests are then made of the equipment in environmental chambers set at -200C and +500C and are tes ted over a period of one-hundred plus hours. This data collection equipment must operate continuously within specifica- 30