Commercial unit modified for antenna-pattern measurements. Addition of automatic range-changing circuit converts Hewlett-Packard 415E standing-wave-ratio (SWR) meter into radio-frequency detector suitable for computer-controlled measurements of radiation patterns of antennas. Modification gives SWR meter effective dynamic range of at least 40 dB. Includes two digital lines communicating one of four range settings to controlling computer and one digital line to inhibit transfer of data when range being changed. Ideal instrument for use in applications involving computer-controlled monitoring of power when large changes in signal level expected.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Automatic Range Changer For SWR Meter


    Contributors:

    Published in:

    Publication date :

    1990-08-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




    AUTOMATIC WHEEL CHANGER ROBOT

    TAYLOR STEVEN / LAUDERBAUGH GERRY / ELLIOTT ROBERT | European Patent Office | 2020

    Free access

    SMALL AUTOMATIC TIRE CHANGER

    YAO LIPING | European Patent Office | 2021

    Free access

    Automatic wheel changer robot

    TAYLOR STEVEN / LAUDERBAUGH GERRY / ELLIOTT ROBERT | European Patent Office | 2023

    Free access

    Automatic Sample Changer for Analysers

    Oksanen, Matias | BASE | 2020

    Free access

    Automatic line changer for rail

    PARK BYUNG HEE / SHIN SA WAN / KIM JU SEOK et al. | European Patent Office | 2023

    Free access