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<br />. <br /> <br />Engineer's Office with 183 transmission slots allowing for 183 OCP's to <br /> <br /> <br />transmit self-timed transmissions at separate 4-hour intervals, on channel . <br /> <br /> <br />062. NOAA-NESOIS provided the use of a random reporting channel (118) for <br /> <br /> <br />transmitting emergency messages. <br /> <br />. <br /> <br />Originally, the complete use of channel 062 was given to the Colorado <br /> <br /> <br />State Engineer's Office. This provided for 240 individual transmission <br /> <br /> <br />slots. The State Engineer chose to cooperate with the Northern Colorado Water . <br /> <br /> <br />Conservancy District, the City of Colorado Springs, and the Bureau of <br /> <br /> <br />Reclamation - Loveland Projects Office, in sharing 57 transmission slots for <br /> <br /> <br />use by these entities in collecting and transmitting real-time water resources . <br /> <br /> <br />data in Colorado. <br /> <br />B. System Operations <br /> <br />Data measurements are taken at the remote stat ions at 15-mi nute i nter- <br />vals. These data are stored and transmitted at 4-hour intervals in the <br />standard transmission mode. The Division of Water Resources is authorized to <br />transmit on GOES-CENTRAL, channel 062, 401.7925 MHz, with a bandwidth of 1.5 <br />KHz. Random reporting (emergency transmissions) parameters are programmed <br />directly into the DCP, including an alert level, warning level, data <br />rate-of-change criteria, and the desired emergency transmission interval. <br />When these user defined thresholds are met or surpassed, the random reporting <br />mode activates. Random transmissions, down to 2-minute intervals, are made to <br />update the user of significant hydrologic conditions. The computer can then <br />signa 1 interested users. Thi s can be accompli shed by sending a message to a <br /> <br />-6- <br /> <br />. <br /> <br />. <br /> <br />.~ <br /> <br />. <br /> <br />. <br /> <br />. <br />