R3132 Series Spectrum Analyzer Operation Manual
5.2.10 Scale Fidelity
5-37
Measuring the 1 dB/div Scale Fidelity
9.
On the 1 dB step attenuator, increase attenuation to 1 dB.
10. On the R3132 series, press SINGLE for single sweep.
11. Record the level of delta marker reading in the Measured Data column in the per-
formance verification record sheet.
Calculate the incremental error by following formula and record the result in the
Incremental Error in the column in the performance verification record sheet.
Incremental Error (dB) = (current delta marker level) - (previous delta marker
level) + 1 dB
12. Repeat steps 9 through 11 each value of the 1 dB step attenuator is listed in the
Table 5-14 1 dB/div Scale Fidelity Test Setting
Measuring the 10 dB/div Scale Fidelity
13. On the R3132 series, after preset, set controls as follows:
Center Frequency:
11 MHz
Frequency Span:
2 kHz
Reference Level:
0 dBm
RBW:
3 kHz
VBW:
10 Hz
dB/div:
10 dB/div
Trace Detector:
Sample
dB from Reference Level
1 dB Step Attenuator
0 dB
0 dB
-1 dB
1 dB
-2 dB
2 dB
-3 dB
3 dB
-4 dB
4 dB
-5 dB
5 dB
-6 dB
6 dB
-7 dB
7 dB
-8 dB
8 dB
-9 dB
9 dB
-10 dB
10 dB