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<br />OOJ33S <br /> <br />.~, <br /> <br />HANDAR has been in the HydroMet business for more than 12 years and have sold <br />and deployed more than 3,000 data collection platforms on a world wide basis. <br />Customers presently using our equipment are as follows: <br /> <br />Bureau of Land Management/Boise, 10 <br />National Weather Service/Silver Springs, MD <br />U.S. Geological Survey <br />Corps of Engineers <br />U.S. Forest Service <br /> <br />Further information on our company and our management personnel is included as <br />a part of our technical proposal. <br /> <br />HANDAR has reviewed your System Description and our response will indicate <br />that our instrumentation and software will meet or exceed your system require- <br />ments. <br /> <br />The 20 precipitation gauges can be met by our model 590V VHF Radio Reporting <br />Rain Gauge (RRRG). The RRRG includes many advanced features not offered by <br />other manufacturers in the flood warning business. The first and most <br />important advantage over the competitive units is the design of the <br />transmitter. The HANDAR synthesized transmitter, which has been FCC certified <br />(copy attached), allows the user to choose any of the allotted frequencies <br />within the flood warning network by simply switch selecting to the desired <br />frequency. <br /> <br />w <br /> <br />The radio is capable of delivering a maximum output of 8 watts CWo The user <br />may decrease the power by means of a manual adjustment. (See discussion on <br />battery life that follows). The radio will operate on incremental frequencies <br />of 12.5 KHz within the 169.40 MHz to 171.925 MHz band. <br /> <br />If a frequency change is required there is no recalibration or realigned <br />requirements. In the competitive radios being offered today each time a <br />crystal change is required the radio must be recalibrated and realigned for <br />proper operation. <br /> <br />A second important specification requirement that should be required for <br />operations in the extreme temperature variations of the Colorado Springs area <br />is the physical design of the tipping bucket. HANDAR's tipping bucket is of a <br />one piece die-cast design. The reason this unit was designed that way is that <br />previously designed tipping buckets that were welded or glued together were <br />found to separate from their welded joints in extreme cold weather and, <br />separate by the glue melting in extreme hot weather. It has been reported that <br />the failure rate of a welded or glued tipping bucket is in excess of 30% of <br />the reported failures. <br /> <br />The 590V instrumentation housing is also designed to meet the extreme <br />environmental conditions that are present in the Colorado Springs area. The <br />DCP and transmitter is housed in a environmentally sealed container with the <br />battery and is guaranteed to withstand all of the environmental conditions <br />found from -40 degrees to +55 degrees centigrate. <br /> <br />;, <br />! <br />, <br />