Black Cat Systems

DX Toolbox searches the web for you, gathering information on solar conditions.

Digital sound effects at your fingertips!

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

Software to create custom sheets of graph paper.

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

Controls Icom radios with a CI-V Interface.

Antenna analysis program.

Radio station-style cart machine.

Create sample ham radio tests to study for the FCC exams.

Powerful sound effects generator and synthesizer app.

Decode various modes of non-voice radio communications.

Gather web-based information on solar and geometric conditions.

Produce sound effects.

Create custom sheets of graph paper.

Antenna design and electronics calculation for ham radio.

Audio function generator, produces sine, square, triangle, sawtooth waveforms

Log and graph any health related measurement.

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

Morse Mania is a morse code tutor for the Macintosh.

MatchMake can find the optimum match for your antenna and radio.

Label Wizard lets you create your own custom sheets of labels.

Create custom knitting grids and diagrams.

Diet Sleuth is a nutritional database and personal health logbook.

Covert units of measurement like mass, volume, and density.

iUnit is a unit conversion program for the Macintosh.

The Atomic is the award winning periodic table of the elements for the Macintosh

Create your own custom pdf files, containing text and shapes.