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Article #4155

Re: Radar Theory

#4155
From: Kelly Goen
Date: Tue, 16 Jan 1990 09:54
40 lines
2668 bytes
In article <1990Jan15.164544.29488@utzoo.uucp> henry@utzoo.uucp (Henry Spencer) writes:
>In article <1990Jan12.042446.8799@waikato.ac.nz> spt@waikato.ac.nz (Simon Travaglia) writes:
>>What's to stop you syncing in with the Speed Detector and sending 
>>back info to say that you are doing 500mph?
>>... And when you get stopped in your 1963 1.3l ford for pulling
>>540mph, you need simply say "Yeah sure..."
>>				"...take me to court"
>
>And he'll say "That sure is an interesting-looking gadget on your dashboard
>there..."
>
>	"...You're under arrest.  You have the right to remain silent..."
>
>Quite apart from the small matter of you not being licensed to transmit
>in the police-radar bands, both the police and the courts would probably
>consider this "obstructing a police officer in the performance of his
>duties".  Which is a far more serious crime than speeding.  "Serious" as
>in "jail sentence and criminal record".
>
>Legal aspects aside, there's nothing hard about sending back a false signal
>that overpowers the real one (the radar probably locks onto the strongest
>signal, and reflections are fairly weak), although you'd have to be careful
>to stay within the limits of the radar unit.  A signal saying "500 mph" is
>probably beyond what the radar's electronics are willing to consider as
>plausible, and possibly beyond what they can receive at all.  That is, it
>might just light up its "something's wrong" light, or it might ignore your
>signal altogether and go for the next strongest one.
>-- 
>1972: Saturn V #15 flight-ready|     Henry Spencer at U of Toronto Zoology
>1990: birds nesting in engines | uunet!attcan!utzoo!henry henry@zoo.toronto.edu

 CHeck out of copies of 73 magazine , Ham Radio(for 10.525 ghz designs) and
Radio Electronics(had a radar calibrator article a few years ago)
also Car and driver had an excellant article on Baseband Pulse jamming techniqu
a few years ago...
AND as long as we are on the subject I have a set of the Benton Harbor Instrument
"RADAR CALIBRATOR" boards built up... anyone know where I can find
dual band X+K 150mw output Gunnplexor modules???
      cheers
      kelly
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!apple!oliveb!amdahl!kelly
References: <All> <this> <Radar> <stuff> <1990Jan12.042446.8799@waikato.ac.nz> <1990Jan15.164544.29488@utzoo.uucp>

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!apple!oliveb!amdahl!kelly
From: kelly@uts.amdahl.com (Kelly Goen)
Newsgroups: sci.electronics
Subject: Re: Radar Theory
Message-ID: <57YE02kP7fuL01@amdahl.uts.amdahl.com>
Date: 16 Jan 90 09:54:05 GMT
References: <All> <this> <Radar> <stuff> <1990Jan12.042446.8799@waikato.ac.nz> <1990Jan15.164544.29488@utzoo.uucp>
Reply-To: kelly@amdahl.uts.amdahl.com (Kelly Goen)
Organization: Amdahl Corporation, Sunnyvale CA
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