Center frequency of wideband AFC circuit drifts only hundredths of percent per day. Since circuit responds only to slow frequency drifts and modulation signal has high-pass characteristics, AFC does not interfere with normal FM operation. Stable oscillator, reset circuit, and pulse generator constitute time-averaging discriminator; digital counter in pulse generator replaces usual monostable multivibrator.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Ultrastable automatic frequency control


    Contributors:

    Published in:

    Publication date :

    1981-01-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




    Ultrastable-frequency distribution system

    Macconnell, J. W. / Sydnor, R. L. | NTRS | 1977


    90-w ultrastable single-frequency fiber amplifier

    Liem, A. / Limpert, J. / Hofer, S. et al. | IEEE | 2003




    Ultrastable Multigigahertz Photonic Oscillator

    Logan, Ronald T., Jr. | NTRS | 1996