R3131 Spectrum Analyzer Operation Manual
2.2.13 Calibration
2.2.13 Calibration
Wait at least 30 minutes after turning on the spectrum analyzer before attempting to perform any measure-
ments, or the measurements may not be accurate.
NOTE: Do not use any input signals when performing a calibration.
1. Press SHIFT and 7 (CAL).
The Cal menu used for calibration appears.
ADVANTEST R3131
REF 0.0 dBm
10dB/
Thu 11 Dec 1997
ATT 10dB A_wrt B_blnk
CENTER 1.5000 GHz
RBW 1 MHz VBW 1 MHz
Cal
Norm Norm
Cal All
SPAN 3000 MHz
SWP 50 ms
Tot a l
Gain
Each
Item
Freq Corr
ON /OFF
Cal Corr
ON /OFF
Cal Sig
Level
ON /OFF
Figure 2-49 Screen Display Showing the Cal Menu
2. Press Cal All
Calibrates the spectrum analyzer. After completing all items up to PBW, the spec-
trum analyzer enters the error correction mode. Press Each Item, then select an
item you wish to calibrate.
NOTE: You may hear some clicking noises during calibration, but this is normal.
2-55
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