Digital Communication in an Analog World
Mother Nature isn't a fan of wireless digital communication. According to her rules, all electromagnetic signals in nature, whether they are created by transceivers or star clusters, must be analog. If this is the case, how can wireless digital communication ever take place? Check out this article to find out how.
Antenna Gain
When you concentrate electromagnetic radiation at a particular location, you effectively concentrate at least a portion of its power at that location as well. Light energy is a type of electromagnetic radiation; so is radio energy. In this article, find out how antennas can concentrate radio waves, just as a magnifying glass can concentrate light.
Discover the Excitement of FT8
One of the most popular operating modes in amateur radio doesn’t involve talking into a microphone or tapping on a Morse code key. Instead, it is one of ham radio’s many digital modes and offers extraordinary performance. Learn more about FT8 in this article.
ARRL On the Air – Episode 20
On this episode of the On the Air podcast, Oliver Dully, K6OLI, gives an introduction to Winlink, the worldwide radio messaging system that uses amateur-band radio that uses amateur-band radio frequencies to provide radio interconnection services.
Impedance in the Real World
Radio operators encounter impedance specifications wherever signals run about. For insight into how impedance can affect your operating experiences in the real world, check out this article.
One Thousand FT8 Contacts in 14 Days
"I’ve been extremely satisfied operating FT8, and it was a lot of fun making contacts with so many people across the world." If you want to learn how to operate this exciting digital mode, check out this blog from Jeromy Alexander, AD8GN.
Hamspeak
CTCSS — Abbreviation for continuous tone-coded squelch system. Some repeaters use this series of subaudible tones to control access to the repeater. CTCSS tones are used to eliminate repeater-to-repeater interference.
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