THE RADAR RECEIVER 



727 



The above performance is representative of the Kmits which all manu- 

 factured units are required to meet and also indicates the field performance 

 which must be maintained for satisfactory military service. Under labo- 

 ratory conditions and with a certain compromise of stability and ease of 



Fig. 20. — 1000-mc Radar receiver input circuit design, including two stages of radio 

 frequency amplification, converter, and beat oscillator. 



adjustment, improved performance over the figures given here can be 

 expected. 



The design for manufacture of a converter assembly typical of airborne 

 equipment methods is illustrated in Fig. 23. Here the equipment design 

 reflects the fundamental requirement of radar equipment for aircraft — that 

 of providing compact units of sufficient rigidity with a minimum of weight. 

 This particular converter unit was employed in the AN/APS-4 Airborne 



