Black Cat Systems has announced that version 5.7.0 of MultiMode OSX has been released and is now available for immediate download. This update to MultiMode includes a major re-write of the SSTV (Slow Scan TV) decoding package, which substantially improves detection of SSTV images, especially under poor reception conditions. MultiMode is an application which allows a Mac to decode and transmit several different modes of non-voice communication often heard on shortwave and ham radio. MultiMode OSX is priced at US$89.