In a recent article , I lamented my distaste for carrying on the classic amateur radio conversation — calling CQ, having someone from far away or around the block call back, exchange call signs and signal reports and perhaps a few pleasantries. The difference between the two terms is mostly not important to our discussion, though, and in practice a lot of hams use the terms interchangeably. But for completeness, modulation is a way of impressing information on a radio wave, and a mode is a way of using a modulation to communicate. Modes include continuous wave CW , analog voice, digital voice, images, and data. Yes, there are applications that will translate keystrokes to Morse and back, but that just feels like cheating.
Ham radio, or amateur radio, is a way to talk with people around the world in real-time, or to send email without any sort of internet connection. It provides a way to keep in touch with friends and family, whether they are across town or across the country. It is also a very important emergency communication system. When cell phones, landlines, the internet, and other systems are down or overloaded, Amateur Radio still gets the message through. Radio amateurs, often called "hams," enjoy radio technology as a hobby, but are often called upon to provide vital service when regular communications systems fail. Ham Radio For Dummies is your guide to everything there is to know about ham radio. Plus, this updated edition provides new and additional information on digital mode operating, as well as use of amateur radio in student science and new operating events.
Amateur Digital. Total Views:. Amateur Radio Digital Voice Modes.
According to Wikipedia, there are about 3 million amateur radio operators — or hams — around the world. There have been amateur radio operators for as long as there has been radio. The ARRL , which is the national association for amateur radio in the United States, was founded in and counts , active members today. Hams communicate by radio, but only on government-allocated frequency bands where they are allowed to operate.