RIGOL DSG3000 Series - Manual (Page 46)

RIGOL Chapter 2 Front Panel Operations
2-6 DSG3000 User’s Guide
Attenuation Mode
Set the attenuation mode of RF output.
If you want to get a larger amplitude setting range, you can set the attenuation
mode to auto. If you want to get higher amplitude accuracy in a smaller amplitude
range, you can set the attenuation mode to fixed.
Press LEVEL  Atten Mode to set the attenuation mode of the RF output
amplitude to “Auto” or “Fixed”.
 Auto: the default mode. In this mode, the attenuator adjusts the attenuation
automatically to match the current amplitude setting. Therefore, you can set the
amplitude within the whole range.
 Fixed: in this mode, the attenuation is the value set in Atten. Therefore, you
can only set the amplitude within a certain range. At this point, if the ALC is
enabled, you can set the amplitude within a certain range continuously. Please
refer to “Specifications”. The AH label is displayed in the amplitude area in the
user interface.
Explanation
When the attenuation mode of the RF output amplitude is auto, the internal
attenuator provides attenuation for the output amplitude to get a larger dynamic
output range.
Attenuation
Set the attenuation of the RF output amplitude in fixed attenuation mode.
Press LEVEL  Atten Mode to select “Fixed”; press Atten, use the numeric
keyboard to input the amplitude attenuation value and press dB or the unit key.
 The amplitude attenuation unit available is dB.
 Press Enter to select the default unit (dB).
 You can also press the left/right direction keys to enter the parameter editing
state and move the cursor to the specified digit and then use the up/down
direction keys or knob to modify the value.
 You can also use the up/down direction keys or knob to modify the amplitude
offset at the current step.
 Press Step to set the step.