Tektronix RSA2200A, User Manual

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Installation
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RSA2203A & RSA2208A User Manual
5. Check the reference level:
a. Press the AMPLITUDE key on the front panel.
b. Make sure that the reference level is set to 0 dBm with the Ref Level
side key. Check that 0 dBm is displayed on the upper left side of the
graticule (see Figure 1--15).
c. Use the general purpose knob to set the reference level to --30 dBm.
d.
Confirm that A/D OVERFLOW is indicated in the red box at the top
center of the screen. Make sure that --30 dBm is displayed on the upper
left side of the graticule and that the spectrum waveform is distorted as
shown in Figure 1--15.
Reference level
A/D overflow indicator Reference level setting
Figure 1- 15: Reference level setting and A/D overflow indicator
e. Using the numeric keypad, set the reference level back to 0 dBm.
(Press 0 → ENTER , in that order, on the keypad.)