18. Calibrator Amplitude Accuracy, HP 8590
adapters). Wait for the power sensor to settle before proceeding with the next step.
5.On the measuring receiver, press RATIO mode. The power indication should be 0 dB.
6.On the power meter, press the dB REF mode key. The power indication should be 0 dB.
7.Connect the LPF, attenuator and adapters as shown in Figure
8.Record the measuring receiver reading in dB in the worksheet as the Mismatch Error. This is the relative error due to mismatch.
9.Record the power meter reading in dB in the worksheet as the Uncorrected Insertion Loss. This is the relative uncorrected insertion loss of the LPF, attenuator and adapters.
10.Subtract the Mismatch Error (step 8) from the Uncorrected Insertion Loss (step 9). This is the corrected insertion loss. Record this value in the worksheet as the Corrected Insertion Loss.
Example: If the Mismatch Error is +0.3 dB and the Uncorrected Insertion Loss is 010.2 dB, subtract the mismatch error from the insertion loss to yield a corrected reading of 010.5 dB.
Part 2: Calibrator Amplitude Accuracy
Perform \Part 1: LPF, Attenuator and Adapter Insertion Loss Characterization" before performing this procedure.
Performance Verication Tests