| Title | Test
                    Find
                    
                    Pattern Title | 
            
                | Expression | ^[AaWaKkNn][a-zA-Z]?[0-9][a-zA-Z]{1,3}$ | 
            
                | Description | Simple match for U.S. Amateur Radio Call signs
Must start with an A,K,N or W.
1 or two prefix letters (not case sensitive),
Exactly one zone digit,
One to three suffix digits( not case sensitive).
73
 | 
            
                | Matches | kd6dun | W9OXZ | kb8ae | 
            
                | Non-Matches | kdd90bz | de7bgw | WV7BXQ5 | 
            
                | Author | Rating:
                        
Not yet rated.
                    David Tersigni | 
            
                | Source |  | 
            
              | Your Rating |  | 
        
    
 
    
    
     
        
                
	                Title: Typo
	                Name: Charlie (K1ECU)
	                Date: 5/19/2019 11:59:39 AM
	                Comment: 
You have a typo in your regex. The uppercase "W" should be followed by a lowercase "w".