ITU-R Atmospheric Attenuation

RF Cafe visitor Paul M., wrote asking where I got the data for my plot of atmospheric attenuation because he could not locate a table of data online. I told him it was generated by entering frequency / attenuation pairs from published charts into Excel and then plotting them. It was done that way to avoid a possible copyright violation. A month or so later, Paul wrote back providing a link to the International Telecommunications Union's (ITU) official document he finally found that provides this and lots of other data and charts. Thanks, Paul.

Posted July 2012

ConductRF Precision RF Test Cables MAESTRO - RF Cafe Website

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