Methods of measurement for equipment used in terrestrial radio-relay systems - Part 3: Simulated systems Section Four - Measurements for f.d.m.  Transmission IEC 487-3-4 /  
 IEC 487-3-4 
ISO, IEC. 
 - First edition. 
 - Geneva :   ISO :   IEC,   1982. 
 - 29 stron ;   30 cm.