🚀 go-pugleaf

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