Accession Number : AD0439503


Title :   ELECTRONIC EQUIPMENT INTERFERENCE CHARACTERISTICS-COMMUNICATION TYPE.


Descriptive Note : Quarterly rept. no. 4, 15 Nov 63-15 Feb 64,


Corporate Author : GEORGIA INST OF TECH ATLANTA ENGINEERING EXPERIMENT STATION


Personal Author(s) : Ogburn,O H ; Donaldson,E E ,Jr ; Stuckey,C W


Report Date : 15 Feb 1964


Pagination or Media Count : 52


Abstract : Suggested testing techniques derived from standard spectrum signature tests conducted on U. S. Army microwave communications receivers are outlined. The importance of the receiver preselector in the reciever evaluation studies is emphasized. Common pitfalls encountered in the testing proceudures are discussed and alternate test methods are presented. A finite mathematical model of a mixer characteristic is developed through the use of the Fourier series. Calculated harmonic levels based on the mathematical model were found to approximate the corresponding measured levels from a simple diode nonlinearities are considered. Mixer theory is discussed for a vacuum tube triode mixer. Data taken on a 6J4 triode mixer are compared to responses computed by a previously developed prediction technique applicable for diode mixers. This comparison indicates that the prediction technique is valid for vacum tube mixers of the type tested. (Author)


Descriptors :   TEST METHODS , MIXERS(MECHANICAL) , SEMICONDUCTOR DIODES , TRIODES , TEST METHODS


Distribution Statement : APPROVED FOR PUBLIC RELEASE