50. Absolute Amplitude Accuracy, HP 8593EM, HP 8594EM, HP 8595EM, HP 8596EM Option 010

7.Record the power level displayed on the measuring receiver as the Absolute Amplitude Accuracy in the performance veri￿cation test record as

TR Entry 1.

8.Press RATIO on the measuring receiver. Power levels will now readout in dB relative to the power level just measured at the 87 dB￿V (020 dBm) output power level setting.

9.Set the EMC analyzer SRC POWER to the settings indicated in Table 2-64. At each setting, record the power level displayed on the measuring receiver.

10.Calculate the Absolute Vernier Accuracy by subtracting the SRC POWER setting (in dBm) from the Measured Power Level for each SRC POWER setting in Table 2-64.

Measured Power Level 0 SRC POWER 0 20 = Absolute Vernier Accuracy

For example: Where the SRC POWER = 021 dBm: 00.9 0 (021) 0 20 = 0.1

11.Calculate the Step-to-Step Accuracy for the 017 dBm (90 dB￿V) to 026 dBm (81 dB￿V) SRC POWER settings by subtracting the previous Absolute Vernier Accuracy from the current Absolute Vernier Accuracy.

Start by subtracting the Absolute Vernier Accuracy for the 017 dBm (90 dB￿V) SRC POWER setting from the Absolute Vernier Accuracy for the 018 dBm (89 dB￿V) setting.

Record this calculation in the Step-to-Step Accuracy column for SRC POWER 018 dBm (89 dB￿V).

12.Locate the most positive Absolute Vernier Accuracy value in Table 2-64 and record as TR Entry 2 of the performance veri￿cation test record.

13.Locate the most negative Absolute Vernier Accuracy value in Table 2-64 and record as TR Entry 3 of the performance veri￿cation test record.

14.Locate the largest Step-to-Step Accuracy values in Table 2-64 and record as TR Entry 4 of the performance veri￿cation test record.

15.Locate the smallest Step-to-Step Accuracy values in Table 2-64 and record as TR Entry 5 of the performance veri￿cation test record.

2-328 Performance Veri￿cation Tests