Iambic keying or squeeze keying creates alternating "dits" and "dahs". Thus, a telegrapher can effectively "remember" several dozen dits and dahs as a single phrase. Likewise, continuous "dahs" are created by holding the "dah" contact. Dallastown Area High School is commonly referred to as Dallastown, Dallastown High, DAHS, and DHS. In 2016, 12.6% of DAHS pupils received special education services. In 2014, DAHS offered 12 AP Courses. DAHS is accredited by the Arkansas Department of Education and receives Title I federal funding. The New York State Education Department named DAHS a Reward School for 2015-16.