K4CNK KENNETH P FRIEDMAN 41016 Isabel Bay Boynton Beach, FL 33436 United States Operator Class EXTRA Previous Callsign Grant Date 05/05/2023 Expire Date 12/04/2030 Codes HVIE - Vanity code - Primary Station Preference List Ads from K4CNK on QTH.com Classifieds View Now! Put this form on your page! Enter a Callsign:   Courtesy of