SimradEK15
TELEGRAMFORMATS....................................................247
AbouttheNMEAtelegramformat.......................................................................248
NationalMarineElectronicsAssociation(NMEA)......................................248
NMEAtelegramprinciples........................................................................248
StandardNMEA0183communicationparameters......................................249
NMEAsentencestructure..........................................................................249
SpecicationofNMEAtelegrams.......................................................................250
DBSDepthbelowsurface.........................................................................250
DBTDepthbelowtransducer.....................................................................251
DPTDepth...............................................................................................251
GGAGlobalpositioningsystemxdata.....................................................252
GLLGeographicalpositionlatitude/longitude............................................252
HDGHeading,deviationandvariation.......................................................253
HDMHeading,magnetic...........................................................................254
HDTHeading,true...................................................................................254
RMCRecommendedminimumspecicGNSSdata....................................254
VHWWaterspeedandheading.................................................................255
VLWDualground/waterdistance..............................................................256
VTGCourseoverground&groundspeed..................................................256
Proprietarytelegramsandformats.......................................................................257
SimradEK500Depthtelegram..................................................................257
KongsbergEMAttitude1000....................................................................258
KongsbergEMAttitude3000....................................................................259
DBSDepthoftrawlbelowsurface.............................................................260
HFBTrawlheadropetofootropeandbottom..............................................260
PSIMP-DPISensordata...........................................................................260
PSIMP-D1PISensordata.........................................................................262
PSIMDHBBottomhardnessandbiomass...................................................263
Sounder/TSS1Motionprotocol..................................................................264
ATSAnnotation........................................................................................265
Proprietarythirdpartytelegramsandformats......................................................266
Atlasdepthtelegram.................................................................................266
FurunoGPhveheavetelegram...................................................................266
ECHOSOUNDERTHEORY...............................................267
Concepts...............................................................................................................268
Observationrange.....................................................................................268
Bottomecho.............................................................................................269
Wavepropagation.....................................................................................270
Biomass...................................................................................................271
Dynamicrangeanddisplaypresentation.....................................................271
Bottomslopes...........................................................................................272
Parameters............................................................................................................275
8
351718/C