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About RF Cafe

Kirt Blattenberger - RF Cafe Webmaster

Copyright: 1996 - 2024
Webmaster:
    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 typing up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

My Hobby Website:

AirplanesAndRockets.com
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Electronics World articles Popular Electronics articles QST articles Radio & TV News articles Radio-Craft articles Radio-Electronics articles Short Wave Craft articles Wireless World articles Google Search of RF Cafe website Sitemap Electronics Equations Mathematics Equations Equations physics Manufacturers & distributors Engineer Jobs LinkedIn Crosswords Engineering Humor Kirt's Cogitations RF Engineering Quizzes Notable Quotes App Notes Calculators Education Engineering magazine articles Engineering software Engineering smorgasbord RF Cafe Archives RF Cascade Workbook 2018 RF Symbols for Visio - Word Advertising RF Cafe Homepage Thank you for visiting RF Cafe!
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RF Cafe Custom Products

RF Cafe has ended the dearth of T-shirts, sweatshirts, coffee mugs, and other items that sport engineering themes. Our newest design sports the thesis, "RF Engineers...We Are the World's Match Makers," with colorful, instructional Smith Chart™ designs and VSWR-Return Loss-Reflection Coefficient conversion formulas.

Extremely Low Prices

I really want these items to be "out there," so the new prices are set at cost + 50¢.    Click Here

This design is sure to be popular with RF Cafe visitors, and will be added to the potential prizes for our monthly drawing of a name of someone who purchases RF Cafe software. Items that qualify for the RF Cafe T-shirt Contest are colored in GREEN.

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 RF Cafe Ringer T-shirt - front (blue or black trim), We Are the World's Matchmakers Smith Chart designRF Cafe Ringer T-shirt - back (blue or black trim), We Are the World's Matchmakers Smith Chart design
T-Shirt w/Color Trim		 RF Cafe Lady's T-shirt - front (available in 3 colors), We Are the World's Matchmakers Smith Chart designRF Cafe Lady's T-shirt - back (available in 3 colors), We Are the World's Matchmakers Smith Chart design
Lady's T-Shirt
RF Cafe Coffee Mug - 15 oz. We Are the World's Matchmakers Smith Chart designRF Cafe Coffee Mug - 15 oz. We Are the World's Matchmakers Smith Chart design
15 oz Large Coffee Mug		 RF Cafe Coffee Mug - 8 oz. We Are the World's Matchmakers Smith Chart designRF Cafe Coffee Mug - 8 oz., We Are the World's Matchmakers Smith Chart design
8 oz Coffee Cup
RF Cafe Gray Hooded Sweatshirt - front, We Are the World's Matchmakers Smith Chart designRF Cafe Gray Hooded Sweatshirt - back, We Are the World's Matchmakers Smith Chart design
Gray Hooded Sweatshirt		 RF Cafe Gray Sweatshirt - front, We Are the World's Matchmakers Smith Chart designRF Cafe Gray Sweatshirt - back, We Are the World's Matchmakers Smith Chart design
Gray Sweatshirt
RF Cafe Ceramic Stein - 22 oz., We Are the World's Matchmakers Smith Chart designRF Cafe Ceramic Stein - 22 oz., We Are the World's Matchmakers Smith Chart design
22 oz Ceramic Stein		 RF Cafe Black T-Shirt, We Are the World's Matchmakers Smith Chart design
Black T-Shirt (front only)
RF Cafe Baseball Cap, We Are the World's Matchmakers Smith Chart design
Baseball Cap		 RF Cafe Lady's Tank Top - front (white only), We Are the World's Matchmakers Smith Chart designRF Cafe Lady's Tank Top - back (white only), We Are the World's Matchmakers Smith Chart design
Lady's Tank Top
RF Cafe Ceramic Tile, We Are the World's Matchmakers Smith Chart design
4.25"x4.25" Tile Coaster		 RF Cafe Mouse Pad, Engineer's Troubleshooting Flowchart design
Mouse Pad

RF Cafe Custom Designs

These custom designs appear on our products. If there is a particular item offered by CaféPress™ that you would like us to add one of these designs to, please send an e-mail and let us know.

RF Engineers - We are the World's Match Makers™

RF Engineers - We are the World's Match Makers™

This custom design by RF Cafe is a montage of Smith Charts with forbidden regions and their associated L-C networks, along with conversions between return loss, reflection coefficient, and VSWR.

Engineer's Troubleshooting Flow Chart

Engineer's Troubleshooting Flow Chart

Experts say that good humor has to have a bit of truth in it.
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Please Support RF Cafe by purchasing my  ridiculously low−priced products, all of which I created.

These Are Available for Free