If you have a new reciever like a 301 or 811 you can go to menu-6-1-1-check switch and there will be a display of what switches you have.  Like DPP44, DP21, DP34, SW64, etc.  It will also list al lthe LNBs you might have but that is not as important.
				
			 
	 
	 
 
		 
 
		 
 
		 
 
		
 
 
		 
 
		 
 
		