Message posted by gary on November 24, 2000 at 16:23:39 EST:
I've seen these systems. They are subject to the ghost and reflection problems, as stated on their website. If you look at the police squad cars and see either 3 or 4 identical antennas on the roof, they probably have a rat-pack detector on board. [The rat-packs are around 219 Mhz) The federal government through the FBI provides funding for these systems. I have the two-antenna version of this hardware (the most basic version of this kind of system), which you can pick up pretty cheap in kit form (about $20). I've seen the 8 antenna version for about $200 at ham flea markets.
http://www.dopsys.com/faq.htm
The local police use such a system to track the rat-pack (the transmitter the banks put in the money bag when they are robbed). I've monitored these tracking events and they have major difficult when just tracking a car. I think a plane would be much more difficult.
In Reply to: Re: Why Russia radar sites? posted by Gunslinger on November 24, 2000 at 15:40:34 EST:
Replies: