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30 Ham Radio Contest Tips — Use a Grey Line Map

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  • 30 Ham Radio Contest Tips — Use a Grey Line Map

    This month, I’m providing a ham radio contest tip-a-day (along with other posts) to help you trigger your own contesting activities. Today’s tip: Use a grey line map.For those who may be new to ham radio or propagation, the grey line is the area on the earth where the time is between day [...]

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