Abstract
By introducing certain inaudible distortion into the audio wave-forms used to modulate an s.s.b. transmitter it becomes possible to detect any frequency translations in the system. Audio frequency circuits in the receiver generate an a.f.c. voltage proportional to any such translation, and and this is used automatically to correct the frequency of the local carrier generator without the need for pilot tones or carrier. At present the system has a lock-in range in excess of ± 200 Hz, and a locked-in error of a few hertz. It may make practicable s.s.b. operation at v.h.f, as well as simplifying the operation of h.f. equipment.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
