Home |
Search |
Today's Posts |
|
#1
|
|||
|
|||
Doppler Radar
On Sat, 7 Jan 2006 11:28:12 -0800, "RST Engineering"
wrote: Back in the '60s and early '70s I did some work with Impatt and Gunn diodes, building a little self-detecting doppler for speed sensing. However, 35 years have passed and my notebooks for that stuff are somewhere in a dusty archive along with my venerable sliderule. Is there a cheap source for onesies-twosies of a radar front-end that will give me doppler audio as a function of a large metal object's speed at a range of 20 meters or so? I don't need to go into production on this thing, just build one. A surplus source would be ideal. It seems that the little kids on our rural country lane have all become teenagers at once and are trying to outdo the others in how fast they can drive daddy's car up and down the lane. We've lost one dog this week and unless I can put up some sort of a siren that goes off when they exceed some agreed upon limit, the carnage will continue. Regards, Jim IIRC I've seen police radar guns as surplus. It's been quite a few years ago now, so I don't recall the details, but I bought a "sports gun" for my youngest that he used at dragster events. I think it was about $100. ...Jim Thompson -- | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona Voice480)460-2350 | | | E-mail Address at Website Fax480)460-2142 | Brass Rat | | http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food. |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
05-235 - Any new procode test arguments? | Policy | |||
FA: 2 Professional Books: RADAR TECHNOLOGY - RADAR - RADAR - RADAR - RADAR - RADAR | Antenna | |||
FA: 2 Professional Books: RADAR TECHNOLOGY - RADAR - RADAR - RADAR - RADAR - RADAR | Equipment | |||
Radar trial to watch Torres Strait | Shortwave | |||
Police Radar Questions. | Scanner |