017 Highway radar jamming

Published in

· 4 years ago

  

Highway radar jamming                       by The Jolly Roger 

Most drivers wanting to make better time on the open road will  
invest in one of those expensive radar detectors. However, this  
device will not work against a gun type radar unit in which the  
radar signal is not present until the cop has your car in his  
sights and pulls the trigger. Then it is TOO LATE for you to slow  
down. A better method is to continuously jam any signal with a  
radar signal of your own. I have tested this idea with the  
cooperation of a local cop and found that his unit reads random  
numbers when my car approached him. It is suprisingly easy to make  
a low power radar transmitter. A nifty little semiconductor called  
a Gunn Diode will generate microwaves when supplied with the 5 to  
10 volt DC and enclosed in the correct size cavity (resonater). An  
8 to 3 terminal regulator can be used to get this voltage from a  
car's 12v system. However, the correct construction and tuning of  
the cavity is difficult without good microwave measurement  
equipment. Police radars commonly operate on the K band at 22 ghz.  
Or more often on the X band at 10.525 ghz. most microwave intruder  
alarms and motion detectors (mounted over automatic doors in  
supermarkets & banks, etc.) contain a Gunn type  
transmitter/receiver combination that transmits about 10 kilowatts  
at 10.525 ghz. These units work perfectly as jammers. If you  
cannot get one locally, write to Microwave Associates in  
Burlington, Massachusettes and ask them for info on 'Gunnplexers'  
for ham radio use. When you get the unit it may be mounted in a  
plastic box on the dash or in a weather-proff enclosure behind the  
PLASTIC grille. Switch on the power when on an open highway. The  
unit will not jam radar to the side or behind the car so don't go  
speeding past the radar trap. An interesting phenomena you will  
notice is that the drivers who are in front of you who are using  
detectors will hit their brakes as you approach large metal signs  
and bridges. Your signal is bouncing off of these objects and  
triggering their radar detectors!       HAVE FUN! 
                                       -Jolly Roger- 

P.S. If you are interested in this sort of thing, get a copy of  
POPULAR COMMUNICATIONS. The ads in there tell you where you can  
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of neat things!