6-12 Chapter6
Front-Panel Key Reference
AMPLITUDE Y Scale
Delete Point
Allows you to delete the amplitude-correction data for
the currently selected point. The prompt If you are
sure, press key again to delete will appear on the
display. Pressing
Delete Point again will delete the point
and adjust all of the point numbers as appropriate. Key
Access:
AMPLITUDE Y Scale, More 1 of 2, Corrections,
Modify, Edit
Delete Allows you to clear all data from the selected
amplitude-correction set. The prompt If you are
sure, press key again to delete will appear on the
display. Pressing
Delete again will delete the correction
set. Key Access:
AMPLITUDE Y Scale, More 1 of 2,
Corrections, Modify
Freq Interp
Log Lin Allows you to determine how trace values are computed
between points in a correction table. If the linear mode
is selected, a straight line is used between points in a
correction table. If the logarithmic mode is selected,
frequency values between points are computed by first
taking the logarithm of both table values and the
intermediate value. Key Access:
AMPLITUDE Y Scale,
More 1 of 2, Corrections, Modify
Ext Amp Gain Adds a positive or negative preamplifier gain value, which is subtracted
from the displayed signal. The function is similar to the
Ref Lvl Offset
function, however with the Ext Amp Gain function, the attenuation may
be changed depending on the preamplifier gain entered. A preamplifier
gain offset is used for measurements that require an external
preamplifier or long cables. The offset is subtracted from the amplitude
readout so that the displayed signal level represents the 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. Key Access:
AMPLITUDE Y Scale, More 1 of 2
Max Mixer Lvl Allows you to change the maximum input mixer level from 10 dBm to
−100 dBm in 10 dB steps using the step keys, and 1 dB steps using the
knob. The mixer level is equal to the reference level minus the
attenuator setting. As the reference level changes, the input attenuator
setting is changed to keep the power levels of on-screen signals less
than the selected level at the input mixer. Pressing
Preset resets the
maximum input mixer level to −10 dBm. Key Access:
AMPLITUDE Y
Scale, More 1 of 2
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