Black Cat Systems

iUnit

iUnit converts between over 1400 different units of distance, mass, volume, velocity, density, and other types of units. iUnit is perfect...

By Black Cat Systems | Added April 18, 2019

Black Cat ACARS

Black Cat ACARS is a full featured program that decodes and displays VHF ACARS transmissions. Feed the audio into your computer's sound...

By Black Cat Systems | Added April 2, 2019

Sonde

Sonde is an app to decode radio transmissions from radiosondes (weather balloons). It currently can decode LMS6 and Mark IIa style...

By Black Cat Systems | Added April 2, 2019

Black Cat HF Weather Fax

Black Cat HF Weather Fax is a full featured program that decodes and displays weather fax transmissions transmitted over shortwave...

By Black Cat Systems | Added April 2, 2019

Morse Mania

Morse Mania is a morse code tutor for the Macintosh. The software packagehelps you learn morse code at speeds ranging from 5 to 30...

By Black Cat Systems | Added March 3, 2019

Graph Paper Maker

Graph Paper Maker lets you create your own custom sheets of graph paper. You have complete control over the graph characteristics:...

By Black Cat Systems | Added November 26, 2018

DX ToolBox

DX Toolbox searches the web for you, gathering information on solar and geomagnetic conditions that affect radio propagation. It also...

By Black Cat Systems | Added October 2, 2018

DGPS Decoder

Now you can decode DGPS (Differential Global Positioning System) beacon transmissions. DGPS stations transmit the difference between...

By Black Cat Systems | Added June 22, 2018

Audio Toolbox

Using no additional hardware, you can produce sine, square, triangle, and sawtooth waveforms of any frequency up to 22 kHz, as well...

By Black Cat Systems | Added May 13, 2018

RF Toolbox

RF Toolbox is an antenna design and electronics/electrical tool package. It takes you step by step through the design of the following...

By Black Cat Systems | Added May 13, 2018

HF Weather Fax

Do you want to get your weather charts without using an internet connection or a dedicated computer? HF Weather Fax lets you receive...

By Black Cat Systems | Added October 9, 2017

Weather Calc

If you're a pilot, you often need to make lots of weather related calculations. Now there's an easy solution, as close as your iPhone....

By Black Cat Systems | Added October 1, 2017

Synth Motion

Synth Motion is a programmable sound effects generator, inspired by the famous SN76477 integrated circuit chip from the 1970s. It contains...

By Black Cat Systems | Added September 30, 2017

SSTV Slow Scan TV

Want to display or send ssTV transmissions, without using a bulky computer? ssTV Pad lets you decode and display Ham (Amateur) Radio...

By Black Cat Systems | Added September 30, 2017

Shortwave Broadcast Schedules

Are you a shortwave radio listener (SWL) in need of an up to date set of schedules for international broadcast stations? Shortwave...

By Black Cat Systems | Added September 30, 2017