What is Ferrite Used For, Anyway (Part 2)
In the OnAllBands entry, “What is Ferrite, Anyway?” we discussed what ferrite is and what makes up a “mix.” We also explored how ferrite behaves at different frequencies. Ferrite has […]
An Amateur Radio Blog by DX Engineering Recent Posts
Technical Articles
HAM Radio 101
Word of the Day (Digital Voice Keyer): What is a Digital Voice Keyer?
Hardware which digitally records one’s voice for CQs, contest exchanges and other frequently spoken information. The recording is played back using keystrokes defined by software (or by pushing a button […]
HAM Radio 101
Word of the Day (Cheerleading): What is Cheerleading in HAM Radio?
Everybody loves a cheerleader, right? Not if you’re in the heat of a highly competitive Amateur Radio contest! Cheerleading describes the practice of a station or group of stations actively […]
Events
Check Out DX Engineering’s Booth at Hamvention 2019
With Hamvention 2019 just around the corner (May 17-19), operators from around the world are anticipating another exciting three days of immersing themselves in the world’s greatest hobby. Once again, […]
HAM Radio 101
Word of the Day (QRM): What is QRM in Ham Radio?
What is QRM…and why do so many Ham Radio abbreviations start with Q? Let’s answer the latter first. Original Q Codes (45 abbreviations beginning with the letter Q) were developed […]
Events
For Those Who Operate QRP, Four Days in May is a Big QRO Deal
For many QRP enthusiasts, the main Amateur Radio event in May every year isn’t Hamvention®—it’s a much smaller gathering that appropriately celebrates operators who are well accustomed to doing more […]
HAM Radio 101
Word of the Day (Band Edge): What is a Band Edge in Amateur Radio?
The band edge generally refers to the lowest (or highest) frequency in the band where one can legally operate within the limits of his/her license. For U.S. operators, for example, […]
HAM Radio 101
Word of the Day (4-Square): What is a 4-Square?
An increasingly common array of four vertical antennas arranged in a square that is electronically steered in four, switchable directions. Once used mostly as transmit antennas, particularly on lower frequencies […]
Technical Articles
What is Ferrite, Anyway?
Ferrites are made from oxides of iron, cobalt (Co), barium (Ba), and strontium (Sr). The type of ferrite most useful to hams are soft ferrites. (The hard ferrites are good […]
HAM Radio 101
Word of the Day (73!): What Does 73 Mean?
When a Ham concludes a transmission or meet-and-greet by saying “73,” he or she is honoring a tradition that goes back to the early days of telegraph communications. Western Union […]
