Radiotelegraphy /(rā`dĭ*ŏ*tĕ*lĕg"rȧ*fy̆)/

Ra·di·o·te·leg·ra·phy

Radiotelegraphy

n.
  1. Telegraphy using the radiant energy of radio waves; wireless telegraphy; -- the term adopted for use by the Radiotelegraphic Convention of 1912.