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Chapter 2 Front Panel Operation RIGOL
User’s Guide for DSA700 Series
2-13
Input Atten
Set the front attenuator of the RF input in order to ensure big signals (or small
signals) to pass through the mixer with low distortion (or low noise).
Key Points:
When the preamplifier is turned on, the input attenuation could be set up to
30 dB. You can adjust the reference level to ensure that the specified
parameter meets the inequality (2-3).
You can modify this parameter using the numeric keys, knob or direction keys.
For more details, please refer to "Parameter Setting".
Scale/Div
Set the logarithmic units per vertical grid division on the display. This function is
only available when the scale type is set to "Log".
Key Points:
By changing the scale, the amplitude range available is adjusted.
The range of the amplitude that can be displayed:
Minimum: reference level – 10 × the current scale value
Maximum: the reference level.
You can modify this parameter using the numeric keys, knob or direction keys.
For more details, please refer to "Parameter Setting".
Scale Type
Set the scale type of Y-axis to Lin or Log. The default is Log.
Key Points:
In Log scale type, the Y-axis denotes the logarithmic coordinate; the value
shown at the top of the grid is the reference level and each grid represents the
scale value. The unit of Y-axis will automatically switch to the default unit
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