# Calling all sleuths **URL:** \ **Category:** Factual Questions\ **Created:** [January 5, 2007, 7:03am UTC](https://boards.straightdope.com/t/calling-all-sleuths/386792 "2007-01-05T07:03:42Z")\ **Posts on this page:** 3\ **Page:** 3
**Author:** ![Tuckerfan](https://avatars.discourse-cdn.com/v4/letter/t/eada6e/32.png) [@Tuckerfan](https://boards.straightdope.com/u/Tuckerfan)\ **Post date:** [January 6, 2007, 7:57pm UTC](https://boards.straightdope.com/t/calling-all-sleuths/386792/41 "2007-01-06T19:57:16Z")
[QUOTE=Blake] And most businesses that run large fleets these days use GPS to track driver movements. But that’s expensive and a freakin’ great GPS unit will probably be noticed by a keen eyed driver. [/QUOTE] Nope. I used to work for a company that sold them for fleet use and we had units about the size of a pack of cigarettes and the antenna was the size of a pack of matches. There’s a couple of fairly cheap ideas in the _Evil Genius_ books. ---
**Author:** ![Clothahump](https://avatars.discourse-cdn.com/v4/letter/c/51bf81/32.png) [@Clothahump](https://boards.straightdope.com/u/Clothahump)\ **Post date:** [January 6, 2007, 8:46pm UTC](https://boards.straightdope.com/t/calling-all-sleuths/386792/42 "2007-01-06T20:46:45Z")
[QUOTE=justwannano] I want to independently track a vehicle using electronics. Its a low cost do it yourself project. The subject cannot know they are being tracked. We are only talking about a radius of a few miles here. I need to secretly install and uninstall the device. So how about it guys? Where can I purchase such a device? [/QUOTE] [http://www.covert-gps-vehicle-tracking-systems.com/](http://www.covert-gps-vehicle-tracking-systems.com/) It’s not that big a deal. ---
**Author:** ![justwannano](https://avatars.discourse-cdn.com/v4/letter/j/7ab992/32.png) [@justwannano](https://boards.straightdope.com/u/justwannano)\ **Post date:** [January 6, 2007, 10:13pm UTC](https://boards.straightdope.com/t/calling-all-sleuths/386792/43 "2007-01-06T22:13:33Z")
You guys just don’t have any imagination. One of the simplest is using a straight pin to key the CB radio so you can find the vehicle using a signal strength meter. [Previous page](https://boards.straightdope.com/t/calling-all-sleuths/386792.md?page=2)