1. Radio-frequency connectors. RF coaxial connectors with inner diameter of outer conductor 6, 5 mm (0, 256 in) with bayonet lock. Characteristic impedance 50 ohms (Type BNC). (15th January 1997) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (56 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗