[862]. 1. There is one position and there are three motions. The position is with flag or other appliance held vertically, the signalman facing directly toward the station with which it is desired to communicate. The first motion (the dot) is to the right of the sender, and will embrace an arc of 90°, starting with the vertical and returning to it, and will be made in a plane at right angles to the line connecting the two stations. The second motion (the dash) is a similar motion to the left of the sender. The third motion (front) is downward directly in front of the sender and instantly returned upward to the first position. This is used to indicate a pause or conclusion.
2. The beam of the searchlight, though ordinarily used with the shutter like the heliograph, may be used for long-distance signaling, when no shutter is suitable or available, in a similar manner to the flag or torch, the first position being a vertical one. A movement of the beam 90° to the right of the sender indicates a dot, a similar movement to the left indicates a dash; the beam is lowered vertically for front.
3. To use the torch or hand lantern, a footlight must be employed as a point of reference to the motion. The lantern is more conveniently swung out upward to the right of the footlight for a dot, to the left for a dash, and raised vertically for front.
4. To call a station, make the call letter until acknowledged, at intervals giving the call or signal of the calling station. If the call letter of a station is unknown, wave flag until acknowledged. In using the searchlight without shutter throw the beam in a vertical position and move it through an arc of 180° in a plane at right angles to the line connecting the two stations until acknowledged. To acknowledge a call, signal "Acknowledgment (or) I understand (——front)" followed by the call letter of the acknowledging station.
Notes on Wig-wagging
5. In order to avoid the flag wrapping itself about the staff, stand facing the receiving station, with feet apart. Hold the staff with the left hand at butt and right hand 24 inches from end. In moving flag to the right, bring it down with an outward and inward sweep, and then return it to the vertical. When the tip is farthest down the staff inclines to the right front and as the flag is brought upward it is swept inward and upwards and as it approaches the vertical position it sweeps forward slightly. In moving to the left the motion is similar,—at the lowest point the staff inclines to the left front. A combination of right and left is made with a figure-of-eight motion.
In making "front" the flag is lowered and moved very slightly to the left front and then swept slightly to the right front, making a figure-of-eight.
The body should be twisted and bent at the waist in making the light and left motions.
Care should be exercised in keeping the flag in front of the body in making "front," the figure-of-eight is necessarily very flat.
Do not make letters in a careless slipshod manner.