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<br />. <br /> <br />000350 <br /> <br />Radio R(porting Rain Gaug( <br /> <br />Th( Radio R(pOrling Rain Gaug(, ahown in figur( 2, con.i.t. of a <br />Standpip( Tow(r .upporting .tructur( that (nclo.(. all co~on(nt. of th( <br />Rain Gaug( and .upport. th( tran.mitting ant(nna. It i. normally buri(d in <br />th( ground, in Ce!ll(nt or compact aoil, about two f(u deep. <br /> <br />Handar 444B Tippinl Buckd. At the top of this alumirauD, non-corro- <br />.in, 10 foot structure i. th( Handu ......B Tipping Buck(t. Thi. 2 foot <br />high unit includes a 1 mm lippinl mechaniam within a 12 inch orifice catch <br />ba.in and funnd. Two HU of .creen. are included to prevent debris from <br />enterinl the unit. <br /> <br />The tipping mechanism i. mad( of a on(-pi(ce Calt aluminum part to <br />pr(vent crack. from fonninl if fr(ezinl occura in th( buck(t and to pr(vent <br />deterioration which might occur from aolder(d fabricated parta. A magn(tic <br />awitch in the unit provid(. a contact cloaure each tUne 1 mm of water ia <br />collect(d in on( of th( two bucketa. ~ one buck(t tipa and emptiea, the <br />other ri.ea into po.ition to continue collectinl any precipitation. <br /> <br />Adjustment acr(wa are mad( of non-corro.ive, freu( resillant nylon in <br />ord(r to (..ily re-calibrat( the tippinl m(chani.~ A .elf-contain(d I(vel <br />bubble provides an ea.y mun. to levd the mechani.m durinl installation. <br />Wat(r di.charg( vent. are .cr((n(d to prevent in.ect entr, and baffl(d with <br />metal plate. to prevent wind gu.t. fram diaturbinl th( tippinl m(chanian. <br /> <br />. <br /> <br />Handu 585 Data Tunamitter. At th( bottam of the Sundpipe Tower i. <br />th( Handu 585 Dau Tun.mittu. It is located bdow Iround levd within <br />th( water tight, corro.ion proof aluminum container. It include. all the <br />(Iectronic circuitry n(c(.aary to operate the Radio Reporting Rain Gaule, <br />including the radio tran.mitter and batter,. cablea connect the antenna <br />and the tipping bucket to th( Data Tran.mitter. A rope .Iinl i. provided <br />to instill and remove th( Data Tunamitter. <br /> <br />RainfalI dau is collected b, countinl the number of 1 mm tipping <br />bucket contact clo.ure.. Thi. accumulated value i. then tran.mitted to the <br />Ba.e Station, a. the even I occur., .uch that data on rainfall i. alway. up_ <br />to-date. The Ba.e Station i. u.ed to .et the initial value of rainfall and <br />to convert it to unit. of inche.. If an, data are not received for an, <br />r(a.on, th( nezt trananitted value from the Data Tran.mitter provide. the <br />correct accumulator value to brinl the rainfall data up to date. <br /> <br />If thu"e is 110 uinfalI, 110 tUllani.. iOIl. are made. However, to <br />indicate that the .tatioll i. full, operational, trall.mi..ion. are automati- <br />call, mad( twice ada" regardIe.. of aay sell.or activit,. <br /> <br />A .eries of .wi tches on the Oau TUII.mi tter are u.ed to .et vat iou. <br />paumueu for dau collection prior to operation. The awitches ate uHd <br />to .et in the .tation'. unique id(ntification lIumber, th( number of event. <br />b(fore tran.mi..ion for th( digital (rainfall and water level) .(n.orl, the <br />.can int(rval time for Inalol lenlor., JOO or 1200 baud rate., etc. <br /> <br />'. <br /> <br />Multi-frequenc, VIE Transmitter. Handar Alut .ylteml ate available <br />in two fr(quency ranles, VIE and UW. VIE Iylleml are provided with a <br />multi-fr(quenc, radio transmitter utilizinl a Iynthe.ized radio fr(quenc, <br /> <br />5 <br />