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So Quite, You Can Hear a Snowflake Drop
Kirt's Cogitations™ #162

These original Kirt's Cogitations™ may be reproduced (no more than 5, please) provided proper credit is given to me, Kirt Blattenberger.

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   Cog·i·ta·tion [koj-i-tey'-shun] – noun: Concerted thought or
                                        reflection; meditation; contemplation.
   Kirt [kert] – proper noun: RF Cafe webmaster.

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So Quite, You Can Hear a Snowflake Drop

Looking for the quietest place on Earth? It's at the South Pole - at least from a seismographical perspective. Researchers have operated seismic instruments there since 1957, but, as with urban sprawl in warmer climes, the noise level has grown worse with the population of that area because of new researchers moving in. No worries (a little Dundee lingo there), new locations have been established in 300 meter deep bore holes about 8 km from the old site. Sensitivity is 100 times that of the previous detectors, and 4 times that of anywhere else on Earth. So, when the San Andres Fault finally starts letting go, they'll be the first to know about it.

RF Cafe Software

RF Cascade Workbook
RF Cascade Workbook is a very extensive system cascaded component Excel workbook that includes the standard Gain, NF, IP2, IP3, Psat calculations, input & output VSWR, noise BW, min/max tolerance, DC power cauculations, graphing of all RF parameters, and has a graphical block diagram tool. An extensive User's Guide is also included. - Only $35.
RF system analysis including
frequency conversion & filters

Smith Chart™ for Excel
Smith Chart™ for Visio
RF & EE Symbols Word
RF Stencils for Visio

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