マージナル "*" 帯域 - DSX CableAnalyzer

The DSX CableAnalyzer has been independently verified to Level IIe, III, IIIe, IV and draft V accuracy in accordance with ANSI/TIA-1152 and IEC 61935-1 Ed.4. If the measurement falls within the nominal accuracy of the test equipment, the measurement must be marked with an asterisk (*). You cannot disable the asterisk in the DSX-5000 or DSX-8000 CableAnalyzer; that would be a violation of the standard.
 
A requirement of these standards is for the test equipment vendor to state their accuracy against the given test limit for all parameters, also known as the marginal bands. The links below provide the specific nominal accuracy values at each frequency measurement point for the DSX-5000 and DSX-8000 CableAnalyzer.

ANSI/TIA testing:

ISO/IEC testing: