NOSCrptProjCOMBO_1980

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~ ·• \H'nly huur~ ui'hinal·11L1~1k rl'l'ording~ with high !\ignal·lo-noisl' ratios Wl'rl·
p\;1ynl 11110 thl· CSR-II without fob,· :1l:m11. Thl' l"l'l'llrding, ind111kd 111:111y pilol wh:ik
so11nds bl'(;!llSl' pilul whak· SOllllll, l'lln~I i Ill l l'd ( hl' l'll1k·d l':lll'gor~' or ~ound,. A ( I illll'S during
!ill' ll'~I. a -..ini,:il• 1i111,· window would qualify. h111 1 hl' llll'";1)!l' 11i,pl:1y w;1, ;1\way, "HAI>''.
l n\\'l'I' 'ignaf l"l'l .. 1>gnitio11or1rigi;l-ri11g lhrl·shold, will i1Kl'l''1'l' i11l·orl"l·,·1 111-H'f Thl' C'0~11l0 l'lllll'''I''-· 'Ph'lll' and J'l'lll'•'s'ill)! ,,·hl'llll'' \\'l'fl' ll'.,kJ in lhl• lahork srn1111ls at sourl'l' kwls 25 dB ahO\'l' natural
kwb. l'rq>rol'l'~~inf,! :111d dl'l'Odii11! \\'1'rl' till' s:lllll' :1~ in !Ill' p1'l·vious l'il'ld ti:sts. Till' fiw
si)!na\, \\'l'rl.' di,trihull'd throti)!h lhl' frl'lJlll'lll'Y h:1nd i'rom 4.4 to h kllz.
~Till' CSR-I l·om•l·tly d1'll'C:ll'd :tll rl'l·onkd llll'Ssagl·~ (l·o1k•d ani111:1I sounds) at
thl' 5· aml I 0-11111i rall)!l'' :ind l'rl'l'lll oJ' till· llll'S':t!!l'S :11 20 nmi. Amhil'nt nobc .:onditions
wcrc lll':ll' 1m1ximum Wen.: shipping noise kvl•ls. Signal Joss m·•urrl•d at two of thi: liVl'
ffl'lJlll'lll'ics tr:111~111ittl·d at 20 nmi.
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