Data Sheet

TeledyneLeCroyCorporation UsingtheNavigator
488 USBProtocolSuiteUserManual
correspondstothelastpacket.TheNavigatorbarismadeupofthreeparts:Pre and Post‐
Triggertraffic,Errors,andTypesofTraffic.
Atanytime,alineinthenavigatorbarofonepixelinheightrepresentsafractionofthe
tracedata.IftheNavigationbaris400pixelshigh,theneachbarinthisexamplewould
represent1/400ofthetrace.Ifthetracehad4000packetstotal,eachbarwould
representtenpackets.IntheTypesofTrafficportionofthenavigationbar,thecolorof
thebarwouldbethatofthemostimportantiteminthosetenpackets.
Dragtheyellowcaret,atthetoporbottom,tosetthepacketrange.Whenyoumovethe
caret,amessageshowsthepacketrange.
Thebluecaretindicatesthecurrentpacketpositioninthetraceview.
10.10.2 Navigator Toolbar
TheNavigatortoolbarletsyouquicklysetNavigatorfeatures.Thetoolbarhastwo
buttons.
NavigatorRanges:Thisbuttonbringsupapop‐upmenuthatletsyouresettheNavigator
range.Therangedetermineswhatpacketsareviewableinthetracedisplay.
NavigatorPanes:Thisbuttonhastwopurposes:ToselectwhichNavigatorpanesappear
andtobringuptheNavigatorlegend.Thelegenddetermineshowinformationisshown
inthepanes.
10.10.3 Navigator Ranges
Yousettheviewingrangebydraggingtheyellowrangedelimitersalongtheslider.
Tosetthelowestpacketviewable,dragthetopdelimiterup.Asyoudoso,atooltip
appearstoindicatethecurrentrange.Stopdraggingwhenyoureachthedesiredlowest
packet.