CONTENTS

1      Scope
2      Characteristics
2.1      Nominal overall loss
2.2      Loss/frequency distortion
2.3      Group-delay distortion
2.4      Variation of overall loss with time
2.5      Random circuit noise
2.6      Impulsive noise
2.7      Phase jitter
2.8      Total distortion (including quantizing distortion) 
2.9      Single tone interference
2.10      Frequency error
2.11      Harmonic and intermodulation distortion
2.12      Crosstalk
2.13      Power source interferences
Annex A – Noise and distortion
A.1      Random circuit noise
A.2      Total distortion
References