Black Cat Systems has released DX Toolbox version 3.7, an update of the Mac OS X radio propagation/conditions analysis and forecasting tool for amateur radio operators, shortwave listeners, and other radio enthusiasts. This version adds a SWBC (Shortwave Broadcast) lookup tool that has information about over 12,000 shortwave radio transmissions.

Broadcasts can be searched by station name, frequency, time of transmission, and country. Those broadcasts currently on the air can be shown. This makes it easy to find and tune into international shortwave broadcasts, according to the folks at Black Cat.

DX Toolbox us designed to help amateur radio operators and shortwave listeners estimate radio propagation conditions. Several propagation forecasting charts are available to estimate signal levels and path conditions between any two points on the Earth.

DX Toolbox sells for US$24.99. A feature complete demo is available at the product web site (