Series TMA connectors have a characteristic impedance of 50 . and are normally used with R.F cables or Microstrip in microwave fields that has a blind-entry and middle low-power. The connectors are usable up to a frequency of at least 6 GHz. This sectional specification provides information and rules for the preparation of detail specifications for series TMA r.f. connectors together with the pro forma blank detail specification. It also prescribes mating face dimensions for general purpose connectors, dimensional details of standard test connectors grade 0, gauging information and tests selected from QC 220000 (IEC 61169-1) ,applicable to all detail specifications relating to series TMA connectors. This specification indicates the recommended performance characteristics to be considered when writing a detail specification and it covers test schedules and inspection requirements for assessment levels M and H.