N3KDN STEPHEN B GROSSMAN, Mr 2341 Haitian Drive Unit 31 Clearwater, FL 33763 United States Operator Class ADVANCED Previous Callsign Grant Date 05/24/2023 Expire Date 09/14/2031 Codes HAI - Ham Radio - Individual Ads from N3KDN on QTH.com Classifieds View Now! Put this form on your page! Enter a Callsign:   Courtesy of