  | 
	    | 
	  | 
	 
	
	  
	
	
	
	  
		
	 | 
	
	
		
		
		  | 
		  | 
		  | 
		 
		
		
		  | 
		
		
Glossary
Definitions of DTV, HDTV & 3DTV Terms 
 
 
  
  	
  
    | Term | 
    Definition | 
   
   
  |  
  
  
    |  
                              | UHF | 
                        	  Ultra High Frequency. This is the part of the  radio spectrum from 300 to 3000 megahertz, which includes TV channels 14-69.  After the DTV transition, UHF TV will be changed to 470 to 698 MHz, which  includes channels 14-51. | 
                      	   
    |  
                        	
                        	  | Upconvert | 
                        	  A process by which a digital, high-definition  television takes a lower-definition picture and converts it into a  higher-definition picture. This may be done by doubling each line as it is  drawn on the screen, or by using advanced algorithms to interpolate the data  between each lower-resolution line, filling in the missing image. | 
                      	   
                        
                        
   
	     
  		
  
		
		 | 
		  | 
		 
		
		
		  | 
		  | 
		  | 
		 
		 
	
	 | 
	
	  
	
		 
		
	 | 
	
	 
	
	
	
 |