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Olympus EPOCH 600 - Reference Gain; Pulser; Figure 2-9 the Reference and Scanning Gains

Olympus EPOCH 600
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DMTA‐10007‐01EN[U8778365],Rev. B,June2010
34Chapter2
GaincanalsobeautomaticallyadjustedusingtheAUTOXX%feature.See“Special
Functions”onpage32.
2.2.2 Reference Gain
Youcandefineareferencegainbypressing[2ND F],(REFdB).Thissetsthecurrent
gainasthereferencegainandactivatesascanninggainforfurtheradjustments(see
Figure 2‐9onpage 34).
Whenthereferencegainisset,the[P<n>]parameterkeysallowaccesstothe
followingfunctions:
• Add:Combinescurrentscanninggainwithcurrentreference
gainandsetsthe
resultantasthenewreferencegain.
• ScandB:Togglesbetweencurrentscanninggainand0.0 dBscanninggain.
• Off:Turnsoffreferencegainfeature(scanninggainislost).
• +6 dB:Increasesthescanninggainby6 dB.
• –6 dB:Decreasesthescanninggainby6 dB.
Figure 2‐9Thereference
andscanninggains
2.2.3 Pulser
TheEPOCH 600mainpulserfunctionsareaccessiblebyselectingthePulsermenu.
Eachindividualpulserparameterisdisplayedabovetheparameterkeys,andcanbe
adjustedbypressingthecorresponding[P<n>]parameterkey.
ThefollowingpulserfunctionsareavailableforliveadjustmentinthePulsermenu:
• PRFMode:Selectseither
AutoorManualPRFadjustmentmode.Autochanges
thePRFsettingbasedonthescreenrange,andManualallowsmanualadjustment
ofPRFin10‐Hzincrements.
• PRF:PulseRepetitionFrequency(PRF)valuesrange:from10 Hzto2000 Hzin
10‐Hzincrements
• Energy:Pulsevoltagevaluesavailable:0V,100 V,
200 V,300 V,or400 V
• Damp:Pulsedampingvaluesavailable:50 Ω,100 Ω,200 Ω,or400 Ω
Scanning gainReference gain

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