Formulas: Test Tolerance Recommendations

Formula 1

Autospectra ${ }^{(1)}: \pm 3 \mathrm{~dB}$ for $f \leq 500 H z$ and $\pm 6 \mathrm{~dB}$ for $f>500 H z$.

Formula 2

Formula 3

(1) Coherence: For ordinary coherence in the range $0.5 \leq \gamma^{2}<1.0$, set the tolerance to be $\pm 0.1$ (avoid establishing a coherence reference or tolerance of 1.0).

Formula 4

(2) Phase: If $\gamma^{2}<0.5$, any phase is acceptable.