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Aegis Power | Alliance Test
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San Fran Circuits

Innovative Power Products (IPP) RF Combiners / Dividers

RF Cascade Workbook for Excel

RF & Electronics Symbols for Visio

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RF Electronics Shapes, Stencils for Office, Visio by RF Cafe

Amateur Astronomy Books

Here are a few hand-selected books on amateur astronomy. At the time I researched them, they had at least a 4-star rating by reviewers. Amazon only allows people who have purchased a book to write a review, so you are not likely to be reading reviews written by scammers.

Amateur Astronomy Manufacturers & Services
Amateur Astronomy Resources
RF Cafe Featured Book Archive

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Kirt Blattenberger,

BSEE - KB3UON

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 nice lady's voice announced "You've Got Mail" when a new message arrived...

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Innovative Power Products Passive RF Products - RF Cafe

Werbel Microwave (power dividers, couplers)