OCR Text |
Show Varieties of Troubles That Cilice Interference Outside sources of interference which affect reception in a receiver are listed as follows: Sign flaslurs. Induction co.'s. X-ray machines. Static machines. Telephone ringer. Atmospheric ta:io. Kloctric street cars. I 'efective transi- riner. Regenerative receivers. P.ad contact in switches. Amateur wireless station. Static produced by belts. Loose street lamp in socket. Smoke or dust precipitators. I 'efective street light rectifiers. Klectrical manufacturing processes. Commercial wireless (code) station. Leaking insulators on power circuits. cir-cuits. Overlapping of broadcasting sta- ' tions. Motion picture machines usir are lamp. Induction from high potential circuits. cir-cuits. Heterodyning of broadcasting stations, sta-tions, Defective rail bends on street railway rail-way systems. Defective lightning arresters power circuits. Motors and g, aerators of the commutator com-mutator type. Arcing wires n trees and other grounded objects. |