APD Mode Operating Instructions 13-7
13.3.14 Min.
Attenuation
Moving the highlighter cursor on the sixteenth line of the Setup page the
Minimum Attenuation can be entered using the function keys on the right.
The range for this value is between 0 and 50dB in 10dB steps (default:
10dB).
It is recommended to set the highest Min. Attenuation when the input signal
level is not predictable, to prevent damages to the input stage.
13.3.15 PreAmplifier
Moving the highlighter cursor on the seventeenth line of the Setup page the
internal Preamplifier can be activated (On) or deactivated (Off, default).
The choice is possible by pressing the Change Key.
It is recommended to switch the Preamplifier off when the input signal level
is not predictable to prevent damages to the input stage.
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