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Operation Verification Measurements
5-92 MS278XB OM
13. Record the new marker level readout value on the display to the corresponding cell in Table 5-12.
14. Calculate the amplitude deviation by subtracting the new marker value from the 30 kHz RBW
marker reading.
15. Verify that the amplitude deviation is
< 0.1 dB.
16. Repeat steps 11 through 16 for the rest of RBW and SPAN combinations in Table 5-12.
Table 5-12. Resolution Bandwidth Switch Uncertainty Test
RBW SPAN
MS2781B Marker
Reading
Amplitude Deviation
from 30 kHz RBW (dB) Specifications
10 Hz 10 kHz 0.15 dB
100Hz 1kHz 0.15dB
300Hz 5kHz 0.15dB
3kHz 30kHz 0.15dB
10 kHz 100 kHz 0.15 dB
30 kHz 500 kHz 0.15 dB
100 kHz 1 MHz 0.15 dB
300 kHz 5 MHz 0.15 dB
1MHz 10MHz 0.15dB
3MHz 50MHz 0.15dB