The B&K Precision ZTF1 adapter matches a spectrum analyzer with 50 ohm input impedance to a network with 75 ohm impedance. It provides DC wideband coverage to 2,000 mHz. The adapter is compliant with Restriction of Hazardous Substances (RoHS) standards according to EU directive 2002/95/EC.

B&K Precision manufactures test and measurement instruments for research and development, production-line testing, and electronic field service applications. The company, founded in 1951, is headquartered in Yorba Linda, CA. It meets International Organization for Standardization (ISO) standard 9001:2008 and is compliant with Restriction of Hazardous Substances (RoHS) and waste electronic and electrical equipment (WEEE) directives.