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Please Support RF Cafe by purchasing my  ridiculously low−priced products, all of which I created.

RF Cascade Workbook for Excel

RF & Electronics Symbols for Visio

RF & Electronics Symbols for Office

RF & Electronics Stencils for Visio

RF Workbench

T-Shirts, Mugs, Cups, Ball Caps, Mouse Pads

These Are Available for Free

Espresso Engineering Workbook™

Smith Chart™ for Excel

- Welcome to the RF Cafe Website Archives -

Established in February of 2024, RFCafe.net is set up as an archival resource for making certain that all information originally presented on RFCafe.com is readily available.


With the exception of required index pages and some images, there is no intentional duplication of content between RFCafe.com and RFCafe.net.

In general, if you can no longer reach a webpage that used to be on RFCafe.com, please change the beginning part of the URL from www.RFCafe.com to www.RFCafe.net and that should solve the issue for you. Example:

From: http://www.rfcafe.com/miscellany/homepage-archive/2014/smart-car-tipping.htm
    To: http://www.rfcafe.net/miscellany/homepage-archive/2014/smart-car-tipping.htm

I am working to restore as many web pages as possible as far back towards RF Cafe's creation date of June 1999. That's a lot of pages and a lot of images - so many, in fact, that their presence on the RFCafe.com web server was getting bogged down. It will take a little while to get all the wrinkles ironed out. 


Thanks, as always, for your loyal patronage of RF Cafe!




Kirt Blattenberger,  Owner / Webmaster 

About RF Cafe

Kirt Blattenberger - RF Cafe Webmaster

Copyright: 1996 - 2024


    Kirt Blattenberger,


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...

Copyright  1996 - 2026

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

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

My Daughter's Website: EquineKingdom