Getting Started
R&S
®
Spectrum Rider FPH
74
User Manual 1321.1011.02 ─ 06.00
The main difference between the two modes is that the attenuation level is 5 dB to 10
dB higher in case of "Auto Low Distortion" than it is for "Auto Low Noise". In the default
state, "Auto Low Distortion" is active.
1. Press the [AMPT] key.
2. Select the "Att/Amp/Imp" softkey.
3. Select either the "Auto Low Noise" or "Auto Low Distortion" menu item.
The R&S Spectrum Rider shows the current attenuation level in the "Parameter
view". The currently active menu item has a blue background and the selected
parameters is indicated with a blue dot in the menu item.
You can also set the attenuation manually. TheR&S Spectrum Rider provides
attenuation in the range from 0 dB to 40 dB in 5 dB steps.
4. Press the AMPT key.
5. Select the "Att/Amp/Imp" softkey.
6. Select the "Manual Att" menu item.
The R&S Spectrum Rider opens an entry box to define the attenuation. Two meth-
ods are provided to fill in the input fields:
● Directly with the number keys
● Using rotary knob
While you can enter any number you want with the number keys, using the rotary
knob is coupled to a certain step size in most cases.
If you use the rotary knob to change the attenuation, i.e. the step size is 5 dB.
7. Enter the attenuation you need.
The R&S Spectrum Rider shows the current attenuation level in the "Parameter
View".
Trying Out the Instrument