R3267 Series Spectrum Analyzer Operation Manual (Vol.1)
2.3.2 Measuring CDMA Wave’s Total Power
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6.
Press SPAN, 1, 0 and MHz.
A frequency span of 10 MHz is set.
NOTE:
When setting the frequency span, make sure it is wider than the span of the
displayed spectrum being measured.
7.
Press LEVEL, 1, 0 and GHz(+dBm).
The reference level is set to +10 dBm.
8.
Press ATT, ATT AUTO/MNL(MNL), 3, 0 and GHz(dB).
The attenuator is set to 30 dB.
NOTE:
Set the attenuator to ’input level + 10 dB’ or more to avoid the saturation at
the input mixer.
9.
Press COUPLE, RBW AUTO/MNL(MNL), 3, 0 and kHz.
An RBW of 30 kHz is set.
10. Press VBW AUTO/MNL(MNL), 3, 0, 0 and kHz.
A VBW of 300 kHz is set.
NOTE:
To reduce measurement errors, make sure that VBW is greater than the
RBW.
VBW > RBW
11. Press A, Trace A Detector and Sample.
The trace detector is set to the sample detector mode.
NOTE:
Sample detector
mode is used to keep measurement errors to a minimum.
12. Press LEVEL and adjust the reference level using the data knob.
When the signal peak is one or more divisions away from the reference level
adjust the signal peak using the data knob so that they are close as much as pos-
sible.
