In this article we are going to explore 840 AM, a topic that has captured the attention of many over the years. From its origins to its impact on modern society, 840 AM has been the subject of debate and discussion. As we delve deeper into this topic, we will discover its implications in different areas, as well as the advances and challenges that surround it. Using a critical and analytical approach, we will examine the importance of 840 AM in today's world and how it has shaped our perception and understanding of it. Through this article, we hope to offer a deeper and more complete vision of 840 AM, inviting our readers to reflect on its relevance and meaning today.
2 Shortwave uses a combination of AM, VSB, USB and LSB, with some NBFM and CW/morse code (in the case of time signal stations) as well as numerous frequencies, depending on the time of day/night, season, and solar activity level. A reasonably full list from 16 kHz to 27MHz can be found at
3 Regions 1 and 3 also use Region 2's frequencies as well, with 50 to 100 kHz spacing.