The Adjustment And Measurement of A Wideband Low-Noise Superheterodyne Receiver
 
                
                 
                
                    
                                                            
                    - 
Abstract
    This paper summarizes the adjustment and measurement of the wideband Low-noise superheterodyne receiver for 230-300 MHz numerical acoustooptical spectrograph. The results of measurment indicate that Pi=-131 dB; K=112 dB; F= 5 dB; and Δf=80 MHz for the receiver are obtained.
 
                                        
                    - 
                        
                     
                    
                    
                                        
                    -