N6BV Propagation Predictions by Dean Straw N6BV

The sunspots are rising finally! That means the upper HF bands are coming alive again after a long period of inactivity. Many newly licensed hams have never experienced the excitement of working rare DX stations on 15, 12 and 10 meters, where low power and modest antennas can produce astounding results. And as Solar Cycle 24 ramps up many old-timers long to re-experience the thrills of DXing on the higher HF bands!

Let's say you're a newcomer to the HF bands, and that you're trying to work a DXpedition that just came on the air. What time and frequency band would be best to snag that rare DX station? How does your signal compare to all your competition also chasing that new one?

Or perhaps you are an avid contester and you want to plan for an upcoming DX contest. How can you make such a plan in an intuitive and scientific manner?

Perhaps you are planning a DXpedition to a rare DX entity. You want to know what to expect for a particular month a year or two ahead of now.

N6BV Propagation Predictions will answer your questions! With 240+ QTHs, the predictions cover the whole world.

Coverage map for N6BV Propagation Predictions. (Map by DX Atlas)

There are two types of propagation data sets. The first is a single-page Summary Table of propagation for 80, 40, 20, 15 and 10 meters. You can get the big picture on all these bands for a full 24-hour period, in a particular month, at a particular level of solar activity. Here's what a typical Summary table looks like.

Sample: Summary table for Boston in October for High level of solar activity.
  
The second set of predictions is for those folks who really like getting into the details. Each Detailed Table is a nine-page, band-by-band listing (160, 80, 40, 30, 20, 17, 15, 12 and 10 meters), for each transmitting QTH for a particular month, at a particular level of solar activity, to all 40 CQ Zones all around the world. Here is a typical Detailed table for 15 meters. 
  

Sample: Detailed table for 15 meters from Boston to all 40 CQ Zones.

Both the Summary and the Detailed Tables show the highest predicted signal strength (in S-units) throughout the receiving area. If the signal strength is followed by an asterisk (*), then the path is by the long path rather than the short path. Both long and short paths can, and often do, exist at the same time, but an asterisk indicates that the long path is dominant in predicted signal strength.

The new and improved N6BV Propagation Predictions now covers the WARC bands 30, 17 and 12 meters, as well as the traditional HF bands 160 through 10 meters. The 30, 17 and 12 meter bands have become very popular with DXpeditions in the last few years, and many DX chasers take a great deal of pride in working all possible bands and band modes.
  
The N6BV Propagation Predictions work with any computer that has Adobe(tm) Reader installed.
  
N6BV CD-ROM  $30