Black Cat Systems Downloads

Atomic Mac

7.0.0 download

Periodic table of the elements software with a wealth of nuclear information.

Atomic PC

6.9.5 download

Periodic table of the elements software with a wealth of nuclear information.

Diet Sleuth for Mac OS X

6.0 download

A nutritional database and personal health logbook

DX ToolBox

5.4.0 download

Gathers information shortwave radio propagation, propagation forecasting.

Elmer

9.4.0 download

Will help you study for your amateur radio exams, and prepares sample exams.

Health Tracker

3.5.1 download

Log and graph any health related measurement.

iUnit

3.7.0 download

Measurement unit conversion program

Morse Mania

5.0.1 download

Morse Mania is a morse code tutor for the Macintosh.

MultiMode

6.8.0 download

MultiMode allows you to decode and transmit CW, RTTY, SSTV, PACKET, PSK31, etc

RF Toolbox

5.2.0 download

RF Toolbox is an antenna design and electronics/electrical tool package

RF Toolbox for Mac OS X

5.0.0 download

RF Toolbox is an antenna design and electronics/electrical tool package

Sound Byte

4.7.6 download

Computerized cart machine for playing songs, jingles sound effects, etc.