![The Long Blue Line: Coast Guard pioneers the marine radio over 100 years ago! > United States Coast Guard > My Coast Guard News The Long Blue Line: Coast Guard pioneers the marine radio over 100 years ago! > United States Coast Guard > My Coast Guard News](https://www.mycg.uscg.mil/Portals/6/2_%20RCS%20Grant%20%28black%29.jpg)
The Long Blue Line: Coast Guard pioneers the marine radio over 100 years ago! > United States Coast Guard > My Coast Guard News
Maritime Radio - During Maritime Radio Day yesterday, it was a privilege to contact former R/Os of these proud vessels, among others. Clockwise from top left: CTFV, GRFT, GWRB, SWXX. Thanks to
Maritime Radio Historical Society - INTERNATIONAL MARCONI DAY K6KPH, the amateur station of the Maritime Radio Historical Society (MRHS), will be on the air for International Marconi Day 2013, the annual event
Maritime Radio - During Maritime Radio Day yesterday, it was a privilege to contact former R/Os of these proud vessels, among others. Clockwise from top left: CTFV, GRFT, GWRB, SWXX. Thanks to
![Historic KPH Maritime Radio Receiving Station and Cypress Tree Tunnel - Point Reyes National Seashore (U.S. National Park Service) Historic KPH Maritime Radio Receiving Station and Cypress Tree Tunnel - Point Reyes National Seashore (U.S. National Park Service)](https://www.nps.gov/pore/planyourvisit/images/pic_kph_rca_building_181215_480x320.jpg?maxwidth=650&autorotate=false)