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Big Brother's Along for the Ride
Kirt's Cogitations™ #91

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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Big Brother's Along for the Ride

There might be a patron saint of travel watching over you, and it isn't necessarily St. Christopher. If you drive a car, owned, leased or rented, from around the year 2000 onward, there is a good chance it has an Event Data Recorder (EDR) onboard. Much like a flight data recorder that is on commercial airliners to provide ex post facto information about events leading up to an accident, the EDR is a GPS-enabled microprocessor system that collects and stores real-time information on position, speed and acceleration. Unlike pilots, though, most drivers are not aware of the devices monitoring their activity. While there are many positive uses for the collected data that assists in R&D for designing safer vehicles and driver education, our friends the Trial Lawyers have used the information to prosecute operators in court. Convictions have been obtained based on EDR data for drunken drivers who have killed innocent people - a good thing indeed. However, insurance and other companies, as well as private detectives have acquired the ability to read EDR contents and use the information against drivers. In one infamous case, a national rental car company was forced to reimburse a client for fees imposed against his credit card ($450) for speeding based on EDR data. I just thought you would like to know before planning your next excursion.
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Webmaster: Kirt Blattenberger
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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

RF & EE Symbols Word
RF Stencils for Visio

Product & Service Directory
Personally Selected Manufacturers
RF Cafe T-Shirts & Mugs

RF Cafe Software

Calculator Workbook
RF Workbench
Smith Chart™ for Visio
Smith Chart™ for Excel
Your RF Cafe Progenitor & Webmaster
Click here to read about RF CafeKirt Blattenberger... single-handedly redefining what an
                                 engineering website should be.

View the YouTube RF Cafe Intro Video Carpe Diem! (Seize the Day!)

5CCG (5th MOB): My USAF radar shop

Airplanes and Rockets: My personal hobby website

Equine Kingdom: My daughter Sally's horse riding website