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  • CQ Amateur Radio

    math’s notes

    Oct 01, 2022 2 minutes
    BY IRWIN MATH,* WA2NDM

    ast October, we presented some low-cost test equipment for experimenters, and based upon your requests, this month we would like to continue. Our current offering is an inexpensive calibrator for your oscilloscope. While it is not intended for this to be an ultra-precision device,

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