The Twilight Zone - Defined
Kirt's Cogitations #62

RF Cafe University "Factoids," "Kirt's Cogitations," and "Tech Topics Smorgasbord" are all manifestations of my ranting on various subjects relevant (usually) to the overall RF Cafe theme. All may be accessed on these pages:

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The Twilight Zone - Defined

Twilight is classified as Astronomical when the sun is between 18° and 12° below the horizon, Nautical when between 12° and 6° below the horizon and Civil when between 6° and 0° below the horizon.

dB Control dB-9006 Magnum Opus Synthesizer - RF Cafe

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...