Methods of measurement for radio equipment used in satellite earth stations - Part 1: Measurements common to sub-systems and combinations of sub-systems Section Five: Noise temperature measurements IEC 510-1-5 /  
 IEC 510-1-5 
ISO, IEC. 
 - First edition. 
 - Geneva :   ISO :   IEC,   1988. 
 - 33 stron ;   30 cm.