ADInstruments DSA2016, Руководство пользователя

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Choose the trace marking by current marker as 1, 2, 3, 4.
5. Readout
Set the reading method of marker X-axis, each marker can be set different reading type. This set
only change the method of reading, not actual value. This set will influence the marker reading in
active function area and the corner of screen.
a) Frequency
“Normality” marker shows absolute frequency when choose this type of reading method.
“Difference Value”, “Difference Value Pair” and “Span Pair” marker shows the frequency
difference of reference marker relative to differenct value marker. In the mode of non-zero
sweeping width, the default reading method is “Frequency”.
b) Period
“Normality” marker shows the reciprocal of marker frequency, when choose this type of
reading method. “Difference Value”, “Difference Value Pair” and “Span Pair” marker shows
the reciprocal of frequency difference. When frequency difference is zero, the reciprocal is
infinity. The reading is shown as
＞ 100Ts. This reading method can not be used in the mode
of zero sweeping width.
c) Time Difference
“Normality” marker shows the time difference before the marker and the start of sweeping
when choose this type of reading method.. “Difference Value”, “Difference Value Pair” and
“Span Pair” marker shows the sweeping time difference between differenct value marker and
reference marker. The default reading method is “Time” in the mode of zero sweeping width.
6. All Off
Close all the markers which has been open and its realative function.
Marker->
Use current marker value to set other system parameter of equipment (like center frequency,
reference level, etc.). If there is no marker open, press
Marker -> and activate a marker automativly.
1. Center Frequency
Set center frequency of spectrum analyzer as the frequency of current marker.
•
Center frequency is set as the frequency of marker when choose normality marker.
• Center frequency is set as the frequency of difference value marker when choose
difference value, difference value pair and span pair marker.
• This function is invalid in the mode of zero sweeping width.
2. Intermediate Frequency Step
Set intermediate frequency step of spectrum analyzer as the frequency of current marker.
• Intermediate frequency step is set as the frequency of marker when choosing normality
marker.
• Intermediate frequency step is set as the frequency of difference value marker when
choosing difference value, difference value pair and span pair marker.
• This function is invalid in the mode of zero sweeping width.
3. Start Frequency
Set start frequency of spectrum analyzer as the frequency of current marker.
• Start frequency is set as the frequency of marker when choosing normality marker.
• Start frequency is set as the frequency of difference value marker when choosing
difference value, difference value pair and span pair marker.
• This function is invalid in the mode of zero sweeping width.