DIN EN 60835-1-1-1993 数字微波无线电传输系统设备的测量方法.第1部分:地面无线电中继系统和卫星地面站测量方法.第1节:总则
Methods of measurement for equipment used in digital microwave radio transmission systems; part 1: measurements common to terrestrial radio-relay systems and satellite earth stations; section one: general (IEC 60835-1-1:1990); German version EN 60835-1-1: