Preface:

The standard ANSI C63.10-2013 has been officially discontinued since the end of October. All FCC-related wireless equipment testing shall henceforth be conducted in accordance with the latest version, ANSI C63.10-2020.

In Chapter 3 of ANSI C63.10-2020, the requirements for spectrum plots are more clearly defined and made more stringent. The FCC TCB Workshop held in October of this year also reiterated the importance of these regulations and the proper implementation methods.

Summary and Purpose of Regulatory Changes

ANSI C63.10-2020 introduces enhanced requirements for spectrum plots. The main reasons include:

Improving the completeness of test data (avoiding insufficient information caused by providing only single-point readings)

Strengthening traceability

Ensuring all spurious emission signals are kept under proper control

Aligning with international regulatory trends and meeting the latest FCC/TCB expectations

Relevant Definitions in ANSI C63.10-2020

According to the Content Presented in the October TCB Workshop