In 1952, the 15-meter band (21.0-21.45 MHz) was added to the amateur radio service as a result of decisions made at the International Telecommunication Union (ITU) conference. This new allocation provided amateur radio operators with an additional high-frequency band that offered excellent propagation characteristics, particularly during periods of high solar activity. The 15-meter band quickly became popular among hams for long-distance (DX) communication, as it allowed for reliable worldwide contacts during daylight hours. The introduction of the 15-meter band expanded the opportunities for amateur radio experimentation and communication, enhancing the overall experience for operators and contributing to the growth and diversity of the hobby.
