ISP Glossary Find an ISP Term

Search ISP Sites

Search: Search internet.com

ISP Resources ISP-Lists ISP Glossary ISP News CLEC-Planet The List ISPCON Free Newsletter IT Developer Internet News Small Business Personal Technology Search internet.com Advertise Corporate Info Newsletters Tech Jobs E-mail Offers internet.commerce Be a Commerce Partner

Search for an ISP term
by a keyword...	...or by category. choose one... Communications Computer Industry Companies Computer Science Data Graphics Hardware Internet and Online Services Mobile Computing Multimedia Networks Operating Systems Programming Software Standards Types of Computers World Wide Web

jammer Last modified: Friday, September 07, 2007
(1) In cellphone terminology, a jammer is a device that blocks transmissions by creating interference. The jammer emits signals in the same frequency range that cell phones uses, and within the range of a jammer a cellphone user may lose their signal. (2) In satellite terminology it is a mobile ultrahigh-frequency (UHF) high-power noise source that can be used to jam satellite antennas or receivers.
Webopedia's "Did You Know...?" Section Use this Webopedia knowledge section for an in-depth overview of specific technologies and occurrences in the areas of Computer Science, The Internet, and Computer Hardware and Software. Webopedia's Quick Reference Section Use this Webopedia reference section for information on common Internet and computer facts and occurrences.	Related Categories Mobile Phones Satellite Communications Security Related Terms antenna cellphone cellular communications satellite comsat mobile phone