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Key Reference
Amplitude
Scale
On Off
Toggles the amplitude Scale for each graticule. The vertical
divisions are linearly scaled with default amplitude units of
volts. The default unit is dBm. This softkey is only valid
when the Scale Type is set to Lin.
Key access:
Int Preamp
On Off
(Option PA3) Toggles the internal pre- amplifier function
between on and off. Pressing Int Preamp (On) results in a
correction being applied to compensate for the gain of the
preamp. Amplitude readings then represent the signal value
at the input connector. When the preamp is on, a “PA”
indication appears on the left side of the display. The
preamp operates over a range of 100 kHz to 3 GHz.
Key access:
Y Axis Accesses the softkeys that change the amplitude units
(logarithmic or linear). Change the amplitude units by
pressing dBm, dBmV, dBuV, dBuA, Watts, Volts, and Amps.
Key access: > More
Ref Lvl Offset Adds an offset value to the displayed reference level.
Reference- level offsets are only entered by using the numeric
keypad. Entering an offset does not affect the trace or the
attenuation value. Reference- level offsets are used when gain
or loss occurs between a device under test and the analyzer
input. Thus, the signal level measured by the analyzer may
be referred to as the level at the input of an external
amplitude- conversion device. When an amplitude offset is
entered, its value appears on the left side of the display
under Offst (as opposed to frequency offsets which appear
at the bottom of the display). To eliminate an offset, press
Ref Lvl Offset > 0 > dB.
Key access: > More
Amplitude
Amplitude
Amplitude
Amplitude
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