EI0MAR is the call-sign for the amateur radio station located in Ye Olde Hurdy Gurdy Museum of Vintage Radio in Howth near Dublin. The Howth Martello Radio Group operates the station on most Sundays.

The museum has historic connections with the early days of telecommunications. The Martello tower, in which the museum is located, was the first telegraphy station connecting Ireland to Great Britain when the earliest submarine cable was laid between the two countries in 1852.

The famous American radio pioneer Lee de Forest conducted wireless telegraphy experiments from the tower in 1903. Two years later ship to shore telegraphy experiments were carried out between HMS Monarch and a Marconi receiving station located in the same Martello tower. The museum web site is http://ei5em.110mb.com/museum.html

de Tony (EI5EM)