WBCQ propagation models updated for January, 2013
We’ve updated the shortwave propagation models for each of the four WBCQ shortwave services for January, 2013. The models are useful for prospective programmers and listeners alike.
For each of WBCQ’s four shortwave services, a propagation prediction chart was generated for typical hours of operation. All times listed are in coordinated universal time (UTC). Sunspot numbers were estimated using the predicted sunspot numbers for cycle 24 from the IPS web site.
Signal coverage is shown in a full color graphical display over a map of North America. The median field strength in dBu is shown. Higher numbers translate to a stronger signal. Just beacuse a particular region is not shown in the signal coverage map, it doesn’t necessarily mean that that service cannot be heard there. Shortwave signal propagation varies depending on solar conditions. A solar storm or geomagnetic disturbance can enhance or degrade shortwave signal coverage in a particular area.