User`s guide

72 N9320A Spectrum Analyzer
4 Key Reference
signal level at the input of the preamplifier. The preamplifier
gain offset is displayed at the top of the screen and is
removed by entering zero. The preamplifier gain offset can
only be entered using the numeric keypad. The preamplifier
gain value is not affected by an instrument preset or a
power cycle.
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Amplitude