RTL-SDR Blog MCX Male to SMA F, SMA M, BNC F, Type N F, Type F F, UHF F, PAL F Straight Adapters Bundle MCX Male to various common female connectors. Including SMA F, BNC F, Type N F, Type F F, UHF F and PAL F. Perfect for RTL-SDR dongles. Be prepared to connect to almost any antenna or device. Included is a bonus SMA M adapter for many common devices like upconverters which have SMA F connectors. 50 Ohm straight adapters - no cabling.