S. Korea Issues Touchscreen Smartphone Stamps

As an erstwhile avid philatelist, I am always pleased to see countries issue postage stamps that commemorate advances in technology and the people who play key roles in that advancement. South Korea recently announced a set of four stamp designs that feature touchscreen smartphones. It was part of their April 22, 2013 Information and Communication Day celebration. Here is a page I created for stamps featuring radio and radar.

Posted April 2013

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived...

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