K4GM GEORGE E MARZLOFF P.O. Box 548 Amissville, VA 20106 United States Operator Class EXTRA Previous Callsign Grant Date 07/11/2023 Expire Date 08/07/2033 Codes HVIE - Vanity code - Primary Station Preference List Ads from K4GM on QTH.com Classifieds View Now! Put this form on your page! Enter a Callsign:   Courtesy of