Impedance: Straight Style, Brass Material, Gold-plated Plating, 50 Ohm Feature: SMA-UHF Coaxial cable connectors firmly mate to each counterpart which provide the low loss resistance connection Application: VHF adapters are compatible with a wide variety of devices, including SWR;CB Radio; Handheld Ham Radio Antenna; Walkie Talkie; Amateur radios; mobile ham radio; sdr dongle; NanoVNA High Quality: Those UHF coaxial adapter is well made and provides for all the possible needed connections from a Ham handheld GMRS radio SMA fitting to the UHF antenna connector Includes 4 adapters to cover all your needs: It consists of 1X SO239 FEMALE jack to SMA MALE coax adapter, 1x SO239 FEMALE jack to SMA FEMALE coax connector, 1x PL259 MALE plug to SMA MALE connector, 1x PL259 MALE connector to SMA FEMALE plug