3-5 Spectrum Analyzer Quick Start Guide
3-10 PN: 10580-00301 Rev. D MS20xxB UG
2. Press the RBW/VBW soft key to change the resolution bandwidth and video bandwidth
ratio.
3. Press the Span/RBW soft key to change the span width to resolution bandwidth ratio.
Set the Amplitude
Press the Amplitude main menu key (hard key) to display the Amplitude menu.
Set Amplitude Reference Level and Scale
1. Press the Reference Level soft key and use the arrow keys, rotary knob, or the keypad to
change the reference level. Press Enter to set the reference level value.
2. Press the Scale soft key and use the arrow keys, rotary knob, or the keypad to enter the
desired scale. Press Enter to set the scale value.
Set Amplitude Range and Scale
1. Press the Auto Atten soft key to set an optimal reference level based on the measured
signal.
2. Press the Scale soft key.
3. Enter the desired scale units by using the keypad, the arrow keys, or the rotary knob.
Press Enter to set. The y-axis scale is automatically renumbered.
Power Offset Set Up for Compensating External Loss
To obtain accurate results, compensate for any external attenuation by using power offset.
In power offset mode, the compensation factor is in dB. (External attenuation can be created
by using an external cable or an external high power attenuator.)
Press the RL Offset soft key and use the keypad, the arrow keys, or the rotary knob to enter
the desired offset value. When using the rotary knob, the value changes in increments of 0.1
dB. Using the Left/Right arrow keys changes the value in 10% increments of the value shown
on the Scale soft key. When using the Up/Down arrow keys, the value changes in the
increment shown on the Scale soft key. When using the keypad, enter the new value then
press Enter or the dB soft key to set the value. The power offset is displayed in the instrument
settings summary column on the left side of the measurement display.
Set the Span
1. Press the Span main menu key (hard key) or the Freq hard key followed by the
Span soft key.
2. To select full span, press the Full Span soft key. Selecting full span overrides any
previously set Start and Stop frequencies.
3. For a single frequency measurement, press the Zero Span soft key.
Note
To quickly move the span value up or down, press the Span Up 1-2-5 or Span
Down 1-2-5 soft keys These keys facilitate a zoom-in, zoom-out feature in a 1-2-5
sequence.
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