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<br />'jO.\\GHWAY PATROL DIVISION <br />110 HIGHWAY BUILL'INS <br /> <br />aI", __ _.,. <br /> <br /> <br />STATE OF MINNESOTA <br />DEPARTMENT O~ PUBLIC SAFETY <br />~)I\JNT P,\UL 551S.'1 <br />No V em belt 1 2, 1974 <br /> <br />2000-03-250 <br /> <br />New Bltighton City Counci~ <br />803 5th Avenue NW <br />New Bltighton, MN 55112 <br /> <br />Gent~emen: <br /> <br />The Minne~ota state Patlto~ oppo~e~ the e/tection 06 a 567 <br />600t Itadio towelt in the noltthwe~t quadltant 06 Intelt~tate <br />Highway~ 35W and 694 becau~e the towelt wou~d po~e a <br />thlteat to oult ailtclta6t opeltation~ and thelte i~ a po~~i- <br />bility that ~tltong Itadio ~igna~~ 6ltom the"FM ante~na will <br />intelt6elte with oult po~ice communication~. . <br /> <br />A~ paltt 06 oult ailtclta6t opeltation, we u~e helicoptelt~ to <br />ob~eltve moltning and evening Itu~h hoult tlta66ic 601t the pult- <br />po~e 06 pltompt detection and Itepoltting 06 tlta66ic hazaltd~ <br />which alte then clealted by Tltoopelt~ on the g/tound to plto- <br />mote tlta66ic ~a6ety and e>>hance the oltdeltly 6low 06 <br />t/taHic. <br /> <br />Ai/tbo/tne ob~eltvance 06 Itu~h hoult tlta66ic i~ paltticulaltly <br />impolttant dulting peltiod~ 06 advelt~e weathelt ~uch a~ dUIt- <br />ing ~now~toltm~ and 60g. Helicoptelt 6light undelt ~uch <br />condition~ i~ accompli~hed at an altitude which peltmit~ <br />the pi~ot to maintain vi-6uaR. contact with the gltound and <br />undelt advelt~e weathelt condition~ thi~ a~titude can be <br />~e~~ than 300 6eet above the gltound. <br /> <br />Although OUIt he~icoptelt pilot can ~ucce~~6ul~y ~kiltt oult <br />300 600t Itadio towe/t in the -6outhea~t quadltant 06 I35W <br />and 694 undelt ~uch condition~, the e/tection 06 anothelt <br />Itadio towelt in the noltthwe~t quadltant wou~d glteat~y Ite- <br />duce the pi~ot'~ mafLgin 06 ~a6ety thfLough the a-fLea <br />becau~e 06 di66icu~ty in maintaining vi~ual contact with <br />both towelt~ dulting advelt~e weathelt condition~. <br /> <br />Additiona~~y, we have been advi~ed by the ~tate .e~ectltonic <br />communication~ pefL-60nne~ that becau-6e 06 the c~o~e pltoxim- <br />ity 06 oult towelt and the p/to~6~ed towelt, FM ~igna~~ 6ltom <br />the pltopo~ed towelt cou~d intelt6e/te with communication~ <br />plte~ent~y conducted on po~ice 6ltequencie~ in the FM <br />~pectltum. <br />