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FCC Part 15, Subpart C, Section 15.219 – Unlicensed Low Power Transmitter Page 23 Procaster, Model: AMTX100 FCC ID: VCJ- AMTX100 EXHIBIT 6. MEASUREMENT UNCERTAINTY The measurement uncertainties stated were calculated in accordance with the requirements of NIST Technical Note 1297 and LAB 34. 6.1. LINE CONDUCTED EMISSION MEASUREMENT UNCERTAINTY CONTRIBUTION (Line Conducted) EMI Receiver specification LISN coupling specification Cable and Input Transient Limiter calibration Mismatch: Receiver VRC Γ1 = 0.03 LISN VRC ΓR = 0.8(9 kHz) 0.2 (30 MHz) Uncertainty limits 20Log(1+Γ1ΓR) System repeatability Repeatability of EUT Combined standard uncertainty Expanded uncertainty U PROBABILITY DISTRIBUTION UNCERTAINTY (dB) 9-150 kHz 0.15-30 MHz Rectangular Rectangular Normal (k=2) +1.5 +1.5 +0.3 +1.5 +1.5 +0.5 U-Shaped +0.2 +0.3 Std. deviation -Normal Normal (k=2) +0.2 -+1.25 +2.50 +0.05 -+1.30 +2.60 Sample Calculation for Measurement Accuracy in 450 kHz to 30 MHz Band: uc(y) = √ m∑ui2(y) = + √ (1.52 + 1.52)/3+ (0.5/2) 2 + (0.05/2) 2+0.352 = + 1.30 dB I=1 U = 2uc(y) = + 2.6 dB ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: [email protected], Website: http://www.ultratech-labs.com File #: VIDC001_F15C219 September 27, 2007 All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST)
