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.
A lot of people new to the use of spectrum analyzers have some difficulty grasping the concept of video
bandwidth (VBW), resolution bandwidth (RBW), video averaging, and peak hold. This short video from Anritsu
explains the functions and demonstrates how settings affect signal display and sweep time. There are many similar
test equipment instructional videos available online.
(now Agilent) had the best
spectrum analyzer app note (AN-150) for years, and it was used by a couple generations of engineers as a
must-read document. An updated version of it is available that contains all the original content.
a copy and hang it in the lab.
hp Memory Project has a collection of downloadable vintage HP application notes, along with a long
list of app note titles.
This archive links to the many video and audio files
been featured on RF Cafe.