Accession Number : AD0433249


Title :   AN IMPROVED SYSTEM FOR RECORDING THE PHASE AND AMPLITUDE OF VLF AND LF STANDARD FREQUENCY TRANSMISSIONS,


Corporate Author : NATIONAL BUREAU OF STANDARDS BOULDER CO


Personal Author(s) : Diede, A H


Report Date : 28 Jan 1964


Pagination or Media Count : 79


Abstract : An improved system for recording the relative phase and amplitude of frequency stabilized LF and VLF transmissions is described. The versatility and ease of maintenance of the system has been greatly improved by the use of modular construction and plug-in printed circuit boards. This type of construction will enable the system to meet any anticipated requirements for coherent measurements in the LF and VLF region. The very low power dissipation of the transistor circuits used increases the reliability and long term stability of the coherent circuits. (Author)


Descriptors :   FREQUENCY , ELECTRONIC RECORDING SYSTEMS , PHASE DETECTORS , VERY LOW FREQUENCY , LOW FREQUENCY , PRINTED CIRCUITS , TRANSISTORS , CIRCUITS , FREQUENCY MULTIPLIERS , PHASE MEASUREMENT , AMPLIFIERS , MIXERS(ELECTRONICS) , POWER SUPPLIES , DETECTORS , SERVOMECHANISMS


Distribution Statement : APPROVED FOR PUBLIC RELEASE