ham radioAmateur radio communication in a range of frequencies from just above the AM broadcast band (1.6 MHz) to the microwave region, at several hundred gigahertz. These frequencies have been designated for amateur use by the FCC.
Anyone with a radio receiver or a radio scanner can listen in on ham radio communications, but only an operator licensed by the FCC can transmit the signals. Typically, ham radio operators, or hams, do not use ham radio to broadcast in the way radio stations broadcast to large audiences at once. Ham transmission is usually two-way or with groups of people using a transceiver, meaning that two or more hams talk to each other instead of everyone listening to a single ham��s broadcast.
There are hundreds of thousands of amateur radio operators in the U.S. and millions around the world. Ham radio can be useful in spreading information during emergencies when other services such as telephones, television or the Internet fail.
Ham radio also is referred to as amateur radio.
Stay up to date on the latest developments in Internet terminology with a free weekly newsletter from Webopedia. Join to subscribe now.
From wacky alarm clocks to lecture hall tools and after class entertainment, these Android apps are a good fit for a student's life and budget. Read More »Sharing Threat Intelligence
A growing number of startups make the sharing of threat intelligence a key part of their solutions. Read More »Smiley Faces and Symbols
A text smiley face is used to convey a facial expression or emotion in texting and online chat conversations. This Webopedia guide shows you how... Read More »
The Open System Interconnection (OSI) model defines a networking framework to implement protocols in seven layers. Use this handy guide to compare... Read More »Network Fundamentals Study Guide
Networking fundamentals teaches the building blocks of modern network design. Learn different types of networks, concepts, architecture and... Read More »Computer Architecture Study Guide
This Webopedia study guide describes the different parts of a computer system and their relations. Read More »