Communication-concepts AN758 Bedienungsanleitung PDF herunterladen (Seite 12)

HIVE INF

RMATI

PRODUCT TRANSFERRED TO M/A–COM

AN758

12 RF Application Reports















 



  

  

  

 













 



 



  

  

 

 Ω









  

  

 



  

 







  

  

Figure 16. For two tone operation, a signal from an external audio oscillator is added to a signal from the T-4XB

built-in oscillator, which has been adjusted to 800 Hz.

During single tone testing, the external oscillator (1200 Hz) is switched off . A calorimeter wattmeter in the output can

be used to calibrate the HP-432A’s at frequencies below [ 10 MHz, where their response roll-off begins.

η 















  

  

 



   

 

   

















 





   



    

Figure 17. VSWR and Efficiency versus Frequency





  

 

 







 

 

 

Figure 18. IMD versus Power Output

Figure 19. Photo of Spectrum Analyzer Display

Showing the IMD Products to the 9th Order. Power

Output = 1 kW at 30 MHz (50 V).



 

 

 

 

    

  

 













  

 

Figure 20. IMD versus Frequency

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