Measurement uncertainty of direct power measurement using the pulse sensor MA2411B

Typical power measurement references to the point value of 1 mW at 50 MHz. This point provides a traceability path to the National Standard for microwave power measurement. The Anritsu MA2411B pulse sensor starts with a low end of 300 MHz. Therefore, the reference power is set at 1 GHz. This report discusses the details of the test procedures and uncertainty budget in establishing specifications of reference output power uncertainty for the combination of power meter ML2488A and power sensor MA2411B. We will review different sensor and meter options when making a direct power measurement. A detailed uncertainty budget will be presented when making direct power measurement using the MA2411B. All uncertainty budgets are based on the guideline of the ISO Guide to the Expression of Uncertainty in Measurement (GUM).