Instrument Accuracy (Normal Path) Test; Specification; Description - Agilent Technologies E4416A Service Manual

Instrument Accuracy (Normal Path) Test

Specification

Electrical Characteristics
Accuracy

Description

This test verifies the accuracy of the normal path in the power meter by
calculating linear error over 50 samples. The standard deviation is then
calculated using the non- biased or n- 1 method:
Equation 2-1: Standard Deviation
σ
=
The test result is obtained by applying a factor of K = 2.58:
Equation 2-2: Accuracy
Accuracy
This accuracy figure represents electrical performance of the normal path
with confidence limits of 99%.
E4416A/E4417A Power Meters Service Guide
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2 2
( Σx )
nΣx –
--------------------------------
( )
n n 1 –
= 2.58σ
Performance Tests
Performance Limits (maximum)
0.8% or 0.04 dB
2
21