• [VK2TPM] Resistive tap built with sharpie PCB etch

    From VK2TPM via rec.radio.amateur.modera@21:1/5 to All on Wed Sep 22 20:33:17 2021
    XPost: rec.radio.amateur.moderated, aus.radio.amateur.misc

    marxy's musing on technology

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    Resistive tap built with sharpie PCB etch

    Posted: 21 Sep 2021 05:12 PM PDT http://blog.marxy.org/2021/09/resistive-tap-built-with-sharpie-pcb.html

    I'm keen not to burn out the input to the spectrum analyser. It's 50 ohms
    in with a maximum of +30dBm. The solution is to transmit into a dummy load
    and sample the signal with a resistive tap.A good candidate for a simple
    PCB and I used Paul Taylor, VK3HN's, technique of drawing resist on the
    board with a sharpie. Components are all soldered on to the top of the
    board so laying them out to figure

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