K3OS GARY SCHWARTZ 65 King Arthurs Court Hickory, NC 28601 United States Operator Class EXTRA Previous Callsign Grant Date 12/10/2016 Expire Date 01/20/2027 Codes HVIE - Vanity code - Primary Station Preference List Ads from K3OS on QTH.com Classifieds View Now! Put this form on your page! Enter a Callsign:   Courtesy of