Radio scanners can be either portable, with rechargeable battery packs, or desktop, like a regular radio. Scanners are gaining popularity with consumers. At a typical race there are hundreds of frequencies in use. Each team will have two or three frequencies, while race control, the sanctioning organization, the medical, fire and track crews and many others will each have assigned frequencies during the race. Until you buy your own scanner, you can practice on the web-controlled receivers by trying some frequencies.
Frequency lists are easy to obtain, often via the Internet.
Many desktop models are powered via 12 volts, so a cigarette lighter plug adapter will allow you to take one on a trip. Local Radio Shack stores may also have a frequency list for the area or have a Police Call directory to sell as well. Inc. All rights reserved. Simply register for a free Postbox in the country where your merchant is located.