Simrad EK80 - TARGET STRENGTH CALIBRATION SUMMARY

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Ethernetswitch
AhighcapacityEthernetswitchisakeycomponentoftheEK80system.
IfyouusemorethanoneWideBandTransceiver(WBT)inyourEK80system,youmustuse
anEthernetswitchtoconnecteachWideBandTransceiver(WBT)totheProcessorUnit.
TheEthernetswitchisbydefaultnotincludedintheEK80delivery,butthisisacommercial
itemthatcanbepurchasedlocally.
Note
Makesurethatyourselectedswitchhasalargebandwidthcapacity.Minimum1Gb
(1000BASE-T)isrequired.YoumustalsomakesurethatallEthernetcablesaretype
Cat5eorbetter .Aslowerswitch-orlowqualitycables–willdecreasetheoperational
performanceoftheEK80.
1000BASE-T(alsoknownasIEEE802.3ab)isastandardforgigabitEthernetover
copperwiring.Each1000BASE-Tnetworksegmentcanbeamaximumlengthof100
meters(330feet),andmustuseCategory5cableorbetter(includingCat5eandCat6).
Wikipedia,April2014
Relatedtopics
Additionalrequireditems,page28
WideBandTransceiver(WBT)description
TheEK80WideBandTransceiver(WBT)isprovidedtotransmittheacousticenergyinto
thewater.Todothis,thetransceivercomputesandgeneratestheelectricsignalssentto
thetransducertoformatransmission-a'ping'.Aftereachtransmission,itwillreceive
theechoesfromthetargetsinthewatercolumnand/ortheseabed.Thesearelteredand
amplied,andthenconvertedtodigitalformat.
TheEK80WideBandTransceiver(WBT)comprises
aruggedboxprovidingallnecessarytransmitterand
receiverelectronics.
Thereceiverisdesignedforlownoise,anditcanhandle
inputsignalsspanningaverylargeinstantaneousdynamic
amplituderange.Alltargetsarecorrectlymeasuredand
displayed.
TheWideBandTransceiver(WBT)isdesignedforapplicationswhereperformanceisthe
toppriority.Ithasfour500Wchannelsthatcaneitherworkindependentlywithsinglebeam
transducers,ortogetherwithasplitbeamtransducer.
SimradEK80