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Country Prefixes: Which Country Does a Callsign Belong To?
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Explore country prefixes drawn from real QSL Museum cards, including TA, DL, I, K, PA and ON, with linked…
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How to Read a Callsign: Prefix, Region Number and Suffix
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Learn to read prefixes, region numbers and suffixes step by step through real QSL cards featuring TA2BK, TA1AR, TA1AC,…
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QSL Card Size and Design: Real Examples from the Archive
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Explore the 140 × 90 mm QSL card format, 3-gram limit, essential contact fields, and front-and-back design through real…