Radio-frequency (RF) coaxial connector patterns used with RF cables. The connector patterns are for low to medium power applications using a screw-coupling mechanism and are commonly known as type N.
BS QC 222100:1997 history
2007BS EN 61169-16:2007 Radio-frequency connectors. Sectional specification. RF coaxial connectors with inner diameter of outer conductor 7 mm (0, 276 in) with screw coupling. Characteristic impedance 50 ohms (75 ohms) (type N)
1997BS QC 222100:1997 Radio-frequency connectors - RF coaxial connectors with inner diameter of outer conductor 7 mm (0,276 in) with screw coupling - Characteristic impedance 50 ohms (75 ohms) (Type N)