An elementary manual of radiotelegraphy and radiotelephony for students and operators (1916)
Fleming, J. A. (John Ambrose), Sir, 1849-1945 · London, Longmans, Green & co. · leaf 21
Fig. 2. kind, called a sine curve, may be constructed in the followingmanner. ^ Take any line OX on which to mark off time (see Fig. 3), andwith 0 as centre describe a circle with diameter AB. Divide its … DX Fig. 3. circumference into 12 parts, and through these points drawhorizontal ines. Take any length BD on the horizontal line anddivide It a so into 12 parts and through these points draw linesperpendicular to OX to intersect the horizontal lines drawnthrough the 12 points on the circumference of…
Radio · Telegraph, Wireless · Telephone, Wireless
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.
