Growing consumer interest in jamming: spectrum policy implications [Spectrum Policy and Regulatory Issues]

This is a magazine dedicated to communications, not electronic warfare. However, the issue of jamming is unfortunately intruding on civil communications on a growing basis. It does not take much use of your favorite search engine to discover the Internet marketing of jammers for cellular communications as well as GPS. There are even WiFi jammers and jammers for an anti-car theft system used in 37 countries called LoJack. These products need not meet any out-of-band emission limits (because they are being sold illegally anyway) and thus may well radiate in bands other than their intended targets. Thus, these commercially available jammers pose a real threat to many types of legitimate spectrum users.