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- Path: sparky!uunet!newsflash.concordia.ca!mizar.cc.umanitoba.ca!bison!sys6626!inqmind!dino
- From: dino@inqmind.bison.mb.ca (Tony stewart)
- Newsgroups: sci.electronics
- Subject: Re: RF noise generator circuit wanted
- Message-ID: <w0JywB2w165w@inqmind.bison.mb.ca>
- Date: Wed, 06 Jan 93 07:49:55 CST
- References: <C0EnDp.FEB@newsflash.concordia.ca>
- Organization: The Inquiring Mind BBS 1 204 488-1607
- Lines: 30
-
- davec@ECE.Concordia.CA (Dave Chu) writes:
-
- >
- > I'm looking for a simple circuit that will generate RF noise from
- > 25-75Mhz. I was thinking of using a series of 2N222's as class C amps,
- > and tune each of the amp at 10 or 15Mhz apart to cover the 25-75Mhz
- > range. I am palnning to use this circuit to jam RC or any types of
- > remote controlled cars. The noise level should be large enough to
- > interfere with the operations of the remote controlled car at a distance of
- > 2-3 meters relative to the noise maker. I would greatly appreciated if
- > anyone have any other ideas or circuits to generate RF noise.
- >
- > Dave
- > |\ | | |
- > ___________________________/\ /\ /\_____| \|_____| |_____ ___ ___ ___
- > Dave Kai-Chui Chu \/ \/ | /| | | | | |
- > Dept. of Elec. & Comp. Eng. |/ | | | |-- | |--
- > Concordia University Voice:(514)848-3115 |___ |___ |___
- > 1455 de Maisonneuve W. H915 Fax: (514)848-2802
- > Montreal, Quebec, Canada H3G 1M8 Email:davec@ece.concordia.ca
- > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
- Since RC's use narrow BW, you would need a much high power level jammer
- to interfere with broadband noise.
-
- The simplest RF noise is repetitive impluse noise (arcing) or swept
- pulses using am FM sweeep from 30 to 75MHz at a 1 Khz rate.
-
- dino@inqmind.bison.mb.ca
- The Inquiring Mind BBS, Winnipeg, Manitoba 204 488-1607
-