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New to CommCat?

CommCat 4 Demo Version
Download the demo version and try it for 30 days. During the demo period you are limited to 30 entries in the log. CommCat 4 is compatible with Vista and Windows 7. When you purchase CommCat we'll e-mail you the registration key to unlock the program. (4.4.18 was released May 13, 2012. See what's new.)

CommCat 4.4 Manual (PDF Format)

Download the complete CommCat manual which includes the CommCatLive sections. To download, right-click over the button and choose Save Link As...

QSXer (Freeware)

CommCat QSXer is a free program that sends your current operating frequency, mode, and a short note to the MyQSX web site where it is displayed on the MyQSX Activity Map. This and additional info is also shown on your own QSXer web site. Use CommCat QSXer in the Manual Mode by entering your info and clicking Send, or the Automatic Mode where QSXer connects to your logging program and your info is sent automatically.

CommCat QSXer works with CommCat, TRX Manager, Ham Radio Deluxe, Logic, and HAM-LOG. If you are using another logging program you can use the Manual Mode.

Download the file by clicking the button below and install by double-clicking the package icon. Start QSXer and follow the instructions to request your free QSXer account. Within minutes you'll be live on the MyQSX Activity Map. (Version 2.1.1 was released April 4, 2012.)

Updating CommCat from an earlier version (2.x, 3.x, 4.x) to 4.4?

Download the full version to a convenient location, then double-click to start Install. (If using a version earlier than 4.0, you will be guided through a 3-step process. Your data files will be moved to your My Documents folder, the old CommCat version will be uninstalled, and the new version will be installed.) (4.4.18 was released May 13, 2012. See what's new.)

Updating CommCat QSXer to version 2.1 from an earlier version?

Download QSXer using the button for QSXer on the left. This download will update your current version. If updating from version 1.0, please uninstall 1.0 first. (2.1 was released April 3, 2012.)

Using Vista or Windows 7?

Vista/Windows 7 users can install and run CommCat 4 without using "Run as administrator" or modifying your User Access Control (UAC) settings. (Windows 7 is the latest Microsoft operating system, the successor to Vista.)