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  • CQ Amateur Radio

    BEHIND THE BYLINES…

    Dec 01, 2021 2 minutes

    arl Luetzelschwab, K9LA (“The Centennial of DXing,” p. 8), is an expert on propagation — particularly the low frequencies — and lead author of the 4 edition of the . Carl is retired from a career as an RF design engineer, specializing in RF power amplifiers,>.

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