Shortwave radios have been in use for nearly 100 years. These radios connected people over great distances long before other means of communication evolved. Today many people still enjoy listening to broadcasts on this set of frequencies to hear talk radio, emergency broadcasting and other material throughout the world. Finding a shortwave radio that meets your needs involves understanding several facets of this technology.
How to Increase the Range of a Radio Scanner
There’s an unseen world of radio communications going on in your area, 24 hours a day. From construction crews to passing truckers and emergency services to aircraft, radio signals are used for a wide range of purposes. Using a scanner to monitor radio frequencies can be a fascinating hobby, or a convenient way to keep track of your own company’s operations. Unfortunately, a scanner’s reception is sometimes limited by the supplied antenna and other factors.
What Is the Difference Between Internet Modem Router Ranges N, G, B, A?
Networking through traditional Ethernet cables is reliable and effective, but long runs of networking cable aren’t a practical way for most consumers to access the Internet or share printers. By the late 1990s wireless networking using a Wi-Fi standard began to make networked computing easy and accessible for everyone. Routers using several versions of the 802.11 wireless standard are available, with differing speeds and ranges. Understanding the differences can be important when you’re in the market for a new router.
RFID Technology Disadvantages & Alternatives
Radio frequency identification systems tag items with small antennas and electronics, allowing nearby readers to track their movements via radio waves. These RFID systems are especially useful for quick identification of the contents of a shipping pallet, inventory on a shelf in a warehouse, and for secure checkout. While the technology has many benefits, industry groups and suppliers of competing technologies have highlighted some disadvantages, and are working to develop alternatives that address these issues. Other technologies are often better suited for specific applications.
More Shortwave & Multiband Radios Picks
Wireless devices are increasingly common — In fact, there were 331.6 million wireless subscriber connections in the United States at the end of 2011 — more than the entire U.S. population, according to CTIA, the International Association for the Wireless Telecommunications Industry. The traditional cell phone grid is not the only type of wireless network, however. Since the introduction of digital cell phones in the 1990s, a variety of network formats have been developed. Users can choose from several wireless access methods to talk, text, and connect to the Internet.