Black Cat Systems has released an update for MultiMode OSX, bringing it to version 4.2.0. MultiMode is a short wave and ham radio message transmitter and decoder. The update adds a waterfall display for improved tuning. According to Black Cat Systems:
Version 4.2.0 of MultiMode OSX has been released.
MultiMode is an application which allows your Macintosh to decode and transmit several different modes of non-voice communication often heard on shortwave and ham radio.
It is the only program of its kind for the Macintosh, rivaling commercial packages for the PC platform costing hundreds of dollars. It is ideal for amateur radio operators, shortwave radio listeners, and other radio enthusiasts. MultiMode is localized for for Dutch, French, German, Italian, and Spanish, in addition to English.
This version adds a waterfall display for PSK31 mode, making it extremely easy to tune in PSK31 stations. Just click on the signal of interest, and MultiMode automatically jumps to that transmission.
You can find more information about the MultiMode update at the Black Cat Systems Web site. MultiMode is available for US$59.00.