1996 - 2016
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 Internet was still largely an unknown entity at the time and not much was available in the form of WYSIWYG ...
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:
These images have been chosen for their uniqueness. Subject matter ranges from historic events, to really cool phenomena in science and engineering, to relevant place, to ingenious contraptions, to interesting products (which now has its own dedicated Featured Product category).
Cool Pic Archive Pages
is how uberRFEngineers spend their off-time.
Hanford Site B Reactor, a 1500-square-kilometer plutonium-production complex in the state of Washington, built for the Manhattan Project. The three-story-tall front face is covered by 2004 metal nozzles for loading 200 tons of uranium.
IIR GPS satellite antenna farm built by Lockheed Martin.
Finally, a present for the NASCAR fan who has everything: The V4 Movement replaces the pinions of the traditional mechanical movement with a relay of 13 drive belts whose tension is controlled by turnbuckles and whose gauge measures a slender 0.50 x 0.45 mm. Cost: a mere $6k-$12k, depending on options.
from just being a stupid-human-tricks story on the Internet about a fool floating into the path of a 747 while
strapped to his lawn chair, Cluster Ballooning is a real sport!. Learn about it here.
world's first integrated circuit, by Jack Kilby, at Texas Instruments.
The power of an impulse - awesome!
Professor Loc Vu-Quoc and his students at U. of FL developed this battlefield sticky sensor that is fired froma paintball gun. It contains a transmitter for use with a camera, bio-sensor, audio pickup, radiation sensor, etc. Pretty cool!
Collapsed cell tower in MN - sent by Mark S.
structures - finally, a use for pennies.
Something old, something new...that's what this tube-based amplifier for the iPod gets you. All for only around $1,100US.
No, this isn't from a 1968 edition of Popular Mechanics - it's the Gibbs Aquada. MSRP sticker price: about $240k - the cost of a good Aston Martin, Lamborghini, or Ferrari. There's a cool video of it on the site.