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Operation Verification Measurements
5-90 MS278XB OM
10. Subtract the new reading from the marker reading at –70 dBm Reference Level setting.
11. Verify that the deviation is within specifications.
12. Repeat steps 8 to 12 for other Reference Level settings listed in Table 5-11.
Table 5-11. Reference Level Switching Uncertainty Test
MS2781B
Reference Level Setting
MS2781B
Marker Reading
Deviation from
–70 dBm Reference Level
(dB) Specifications
–70 dBm 0 N/A
–60 dBm 0.1 dB
–50 dBm 0.1 dB
–40 dBm 0.1 dB
–30 dBm 0.1 dB
–20 dBm 0.1 dB
–10 dBm 0.1 dB
0dBm 0.1 dB