DC Blocks RoHS compliant, INNER, OUTER & INNER/OUTER DC Blocks cover wireless band applications from 0.400 - 2.15GHz. There are the specifications of our DC Blocks f-type as follows: Name:DC Block F-type(DB-F20) Specifications:Frequency:5-2150MHZInsertion Loss:≤0.5 dBBlocking Voltage:20V DCImpedance:75ΩVSWR:≤1.2If you want to know more details,please contact us.