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À la tonalité, le temps sera...
Kirt's Cogitations #63

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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À la tonalité, le temps sera...

In 1905, Paris established time over the phone, available on demand. With a microphone transmitting the sound of ticking, a member of the Observatory staff counted the minutes and seconds verbally on the same line. This system was extremely popular but time consuming. In 1933, Paris Observatory introduced an automatic speaking clock. Britain's current system was introduced in 1936.

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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