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phase offset setting

Question asked by andeezlemoyo on Feb 17, 2015
Latest reply on Feb 17, 2015 by daras

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Hi,

I am working with an 2-port E8362C, running firmware version, A.09.42.22.

The phase offset setting of the Scale menu rounds the offset value to the nearest whole integer. For example, if I enter 2.1, it rounds it to 2, 2.6 rounds the display to 3. Since by observation however it does seem to take and apply the fractional values, is there a way to change the display format to show at least 1 decimal place or more?

Thank you,

Andy

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daras Feb 17, 2015 2:31 PM
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When you say "display", you'll have to be more specific. are you talking about the response value of a marker on a phase format trace, are you talking about the y-axis annotations or something else altogether?

!https://dl.dropboxusercontent.com/u/87949221/Forum/ThreadID_39182/PhaseDisplay.jpg!

The y-axis annotation depends on the scale. in my example above, the scale is 1 degrees per division, so the annotation uses whole numbers, but if I auto-scale this trace so the scale becomes 0.01 degrees/division, then the y-axis annotation will use 2 decimal places.

on the marker readout, you can set the precision of the readout through the Marker Display dialog:

!https://dl.dropboxusercontent.com/u/87949221/Forum/ThreadID_39182/markerDisplay.jpg!
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- andeezlemoyo @ daras on Feb 17, 2015 2:50 PM
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  Hi daras,
  
  I'm talking about the actual input field which also displays the value. I.e. press Scale, then Phase Offset, the input field is activated and you can type a value in it. Once you hit enter, the value is now being displayed in the input field. The phase offset is rounded to the nearest whole number. Is there a way to change it to correctly display the underlying value? I say it is incorrect because if I enter 1.5 in the phase offset field, it takes it and uses it, but displays 2 instead of 1.5.
  
  I've attached a screen shot.
  
  Thank you,
  
  Andy
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  - phaseoffset.PNG4.8 KB
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  - daras @ andeezlemoyo on Feb 17, 2015 2:59 PM
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    ok - so that is the limitation of the older firmware. when I activate that entry with the most current firmware, this is what I get:
    
    !https://dl.dropboxusercontent.com/u/87949221/Forum/ThreadID_39182/PhaseOffsetEntry.jpg!
    
    Unfortunately, the version you are running is the latest officially supported version for C model PNA's. We still support that branch and we do provide bug-fix updates for critical defects, but I am not sure if this qualifies as a critical, especially since the actual offset value applied is the correct number you entered and if you use the remote interface to query back the number, you will get the full precision value.
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phase offset setting

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