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 3 - Transmission characteristics IEC 835-1-3 /  
 IEC 835-1-3 
ISO, IEC. 
 - First edition. 
 - Geneva :   ISO :   IEC,   1992. 
 - 33 stron ;   30 cm.