Operation Manual

15.3Traditionalsonartechnology
Traditionalsoundersuseasinglecarrierfrequencyorcarrierwave
forthesonarping.Thesesoundersworkbymeasuringthetimeit
takesthepingechotoreturntothetransducertodeterminetarget
depth.Usingthismethodif2targetsareclosetogethertheycanbe
shownasasinglelargetarget,ratherthanmultiplesmallertargets
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15.4BroadbandCHIRPsonartechnology
Broadbandsonarsuseasweptfrequency'CHIRP'signalwhichcan
distinguishbetweenmultipleclosetargets,thisenablesthesonarto
displaymultipletargetsinsteadoflargecombinedtargets.
Someofthebenetsareimproved:
•T argetresolution.
•Bottomdetectioneventhroughbaitballsandthermoclines.
•Detectionsensitivity.
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Usingtheshnder
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