Black Cat Systems has released an update for DX Toolbox, bringing it to version 1.2. DX Toolbox is a utility designed for gathering information that affects shortwave radio broadcasting. The update adds MUF and LUF calculators. According to Black Cat Systems:
Black Cat Systems announces the release of DX Toolbox version 1.2, a radio propagation / conditions analysis and forecasting tool for amateur radio operators, and other radio enthusiasts.
DX Toolbox is an application which gathers a variety of solar and geomagnetic information from real-time online sources, and presents them in charts and tables.
This version adds calculations of the MUF (Maximum Usable Frequency) and LUF (Lowest Usable Frequency).
You can find more information about the DX Toolbox update at the Black Cat Systems Web site. The update is free for registered users, while the full version is available for US$19.99.