OCR Text |
Show Scheme for Mounting, Turning Loop Aerial The arrangement suggested by the diagram is a panel mounting for a loop aerial. By means of the dial on the front of the panel, a record may be kept of the directions of certain stations sta-tions or the angle at which It is neces- Pl i ( t; 4n J An Ingenious Method of Mounting and Turning a Loop Aerial A Record Can Be Kept of the Directions of Stations. sary to turn the loop in order to receive re-ceive strongest signals from any particular par-ticular station. A simple method of turning a loop without handling the wires and entangling the leads has sometimes been a problem to the experimenter. ex-perimenter. This method controls the loop by a simple gear arrangement. When the front dial is turned the gear at the end of the rod passing through the pnnel engages with the gear on the upright which supports the loop, and the loop Is revolved. The ends of the loop wire are brought to two switch levers held to the upright and revolve with the loop. Each makes contact with a circular brass strip on top of the cabinet. From each of these strips wires are led to two binding posts on he front of the panel. |