Mark Roddy – författare
Visar alla böcker från författaren Mark Roddy. Handla med fri frakt och snabb leverans.
6 produkter
Return of the Horsemen
Spark Gap, Submarines and Mexican Cave Fish
Av Mark Roddy
Häftad, 2024
819 kr
Lägg i varukorg
Return of the Horsemen
Spark Gap, Submarines and Mexican Cave Fish
Av Mark Roddy
E-bok, 2024
58 kr
Lägg i varukorg
The phone call was short - a complaint from Mark Webley - a freshman at St. Mary’s college in Maryland - reporting that every Thursday night he was picking up a coded message in morse code - that was being repeated verbatim all the way around the world by other ham radio operators. The situation is …
