When measuring transmit and receive power with an optical power meter, what must the technician ensure?

Ensuring that the meter's calibration is traceable to the National Institute of Standards and Technology (NIST) is critical for achieving accurate and reliable measurements when assessing transmit and receive power with an optical power meter. Calibration to NIST standards ensures that the measurements taken by the technician are consistent with national standards, allowing for the comparison of results across different time periods and situations. It establishes a known reference point, which is essential in maintaining the integrity and accuracy of the measurements.

Without proper calibration, any power readings could be misleading or erroneous, leading to incorrect assessments of system performance, troubleshooting, or installation. A technician should prioritize using a calibrated meter to ensure the reliability of their results, which is foundational for successful optical network operations.