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Heathkit Most Accurate Clock (HMAC)
Click on photos to see enlargement.
  Sync-Up History Data for 1999  
         
  View 1999 Raw Sync-Up Data  
  5 MHz Sync-Up History   10 MHz Sync-Up History  
  HMAC5MHz1999   HMAC10MHz1999  
         
  15 MHz Sync-Up History   Composite Sync-Up History  
  HMAC15MHz1999   HMACComposite1999  
         
       
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