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3 Amplitude menu
·[Ref Level]: press [Ampt]→[Ref Level], to set the ref level by using the
number key on front panel, [dBm], [-dBm], [mV] or [uV] or [↑] or [↓] key and
spinning wheel.
·[Special Notice]: in case of using [↑] or [↓] key and spinning wheel, the
step is 10dB.
·[Ref Position]: press[Ampt]→[Ref Position], to change the ref position by
using the number key or [↑] or [↓] and spinning wheel.
·[Atten Auto Man]: press [Ampt]→[Atten Auto Man], to use the menu to
activate the automatic or manual mode of attenuator by number key or[↑]
or[↓] key and spinning wheel.
·[Special Notice]: the setting range of attenuator is 0dB - 50dB with step
size of 10dB.
·[Scale/Div]: press [Ampt]→[Scale/Div], to set the scale/div as 0.1dB～
20dB by number key or [↑] or [↓] key and spinning wheel.
·[Units]: the amplitude unit shall be taken as dBm.
·[Pre Amp Off On]: press [Ampt]→[Pre Amp Off On], to activate or
deactivate the preamplifier