The signal loss of this bnc to pl259 adapter is only 0.1 and the vswr is 1.15 on 6000MHz. BNC Female (jack hole) to UHF Male(plug pin). Come with 2-Pack, all of our bnc to uhf antenna adapters come with a full year of warranty. The innner pin of this connector is made of brass gold plated. And this adapter is with brass nickel plated body and Teflon(PTFE) Insulator that could be for a reliable signal.Salt spray test for 96 hours. Coaxial cable adapter widely used for RF applications: antennas, Wi-Fi, radios, broadcast, wireless,etc. This 50 ohm bnc female to uhf male adapter could be used to connect uhf-female to bnc -male coaxial cable. That is great to to connect two different types of cables. This is a BNC Female to UHF Male PL259 RF Coaxial Adapter for CB Ham Radio Adapters Coax Connectors 2 Packs. This BNC Female to UHF Male adapter is constructed of brass for good conductivity and RoHS compliant. This BNC adapter is 50 Ohm impedance.