A form of
telecommunication which is concerned in any process providing
transmission and reproduction at a distance of documentary matter, such as written or printed matter or fixed images, or the reproduction at a distance of any kind of
information in such a form. For the purposes of the
Radio Regulations , unless otherwise specified therein, telegraphy shall mean a form of telecommunication for the transmission of written matter by the use of a
signal code. [
NTIA] [
RR]