Hiram Percy Maxim and Clarence D. Tuska

“ It is not intended to adopt heroic measures nor would it be desirable for an operator to deliberately look for interference; the Department simply wants the actual interference which an operator experiences in his regular work. A great deal of interference is caused needlessly and every operator should use a little care in testing when he might cause interference. If you are going to test, do not send by the hour or even fifteen minutes without listening in for possible interference. ”