Chapter 2 69
Front-Panel Key Reference
AMPLITUDE Y Scale
Key Access: AMPLITUDE Y Scale, More
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. In addition, you may use the keypad to specify a value. 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. When
Preset Type is set to Factory, pressing Preset resets
the maximum input mixer level to
−
10 dBm.
Key Access:
AMPLITUDE Y Scale, More
IF Gain
Auto Fixed
When using digital resolution bandwidths (RBW < 1 kHz), the analyzer
uses IF Gain autoranging to set the optimum signal gain for digital
processing. This technique produces the maximum measurement range
without overloading the digital system. To increase measurement
speed, select
IF Gain (Fixed). This setting decreases the display range to
70 dB, so you may have to adjust the reference level to ensure complete
view of the signal.
Key Access:
Amplitude, More, More