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 2 - Basic characteristics IEC 835-1-2 /  
 IEC 835-1-2 
ISO, IEC. 
 - First edition. 
 - Geneva :   ISO :   IEC,   1992. 
 - 37 stron ;   30 cm.