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 […]
An Amateur Radio Blog by DX Engineering HAM Radio 101
HAM Radio 101
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 […]
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 […]
HAM Radio 101
Word of the Day: “175 Mile Radius” in Amateur Radio
Here’s a phrase that pops up in the fine print of many Ham Radio contest rules. It means a geographic requirement for groups of stations jointly submitting their scores as […]
HAM Radio 101
Word of the Day (HAM): What Does HAM Mean in Amateur Radio?
Editor’s Note: CW? SWR? QRM? Yes, Amateur Radio has its own lingo–and we’ll cover that unique terminology in our daily Word of the Day column. We’re kicking off our Word […]
