CAT4Web is a browser add-on and tool developed by kikimor. It is designed to synchronize amateur radio transceivers with WebSDR. This free program is available on the Chrome platform.

With CAT4Web, users can easily connect their amateur radio transceiver to WebSDR, allowing them to control and operate their transceiver remotely through a web interface. This add-on enhances the functionality of amateur radio enthusiasts by providing them with the convenience of accessing their transceiver from any location with an internet connection.

To use CAT4Web, users need to download and install the accompanying program from the developer's website. Detailed instructions on how to set up the synchronization can be found on the CAT4Web website.

CAT4Web is a valuable tool for amateur radio operators who want to enjoy the benefits of WebSDR while maintaining control over their own transceiver. With its seamless integration and user-friendly interface, CAT4Web provides a convenient solution for remote operation.