Application of the Autosynchronized Oscillator to Frequency Demodulation

摘要: A new frequency-operated demodulator is described which does not respond to amplitude modulation. These results are achieved by making use of a controlled oscillator at the receiver automatically synchronizes with transmitter frequency. If desired, this method can be made give large response extremely small amounts frequency shift. On other hand, it also used when maximum shift many times as great signal band width. Other advantages its linear and simplicity requires addition only one tube existing receivers. Tests show that frequency-modulated an amplitude-modulated may applied simultaneously same carrier without noticeable interference receiver. applications synchronized described.