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E4406A markers

Question asked by andre on Feb 27, 2014
Latest reply on Feb 27, 2014 by andre
hello to all

i have a question about markers on a E4406A

in basic mode ( spectrumanalyzer mode) 10Mhz span / resolution auto / eg i input a unmodulated signal on 100.0000Mhz from a signalgenerator.
i put the CF on 100.0000 Mhz , then marker and search , then the marker is spot on 100.0000Mhz 
but if i put the CF on 103.000Mhz and then again marker and search then the marker is not spot on 100.0000Mhz but eg 100.03567Mhz
the same goes for CF eg 98.0000 Mhz and then again marker is not spot on the 100.0000Mhz 

can someone explain to me what i am doing wrong or is this a the fact it is not a real spectrumanalyzer.
all alignment test are succesfull.

regards ,

andre  

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