Black Cat Systems
Label Wizard
Trial versionCreate your own custom sheets of labels.
MacRF Toolbox
Trial versionDetermine ham radio antenna design parameters.
MacAudio Spectrum Analyzer
PaidSpectrum Pad turns your iPad, iPhone, or iPod Touch into an audio spectrum analyzer.
iOS
RF Link Calc
PaidRFLinkCalc is a numerical calculation tool for radio engineers. It models the characteristics of an RF link, including Wireless Internet (WiFi)...
iOSMatchMaker
Trial versionFind the optimum match for your antenna and radio.
Mac
SelCall
Trial versionGenerate calling tones and play them as singlets or in bursts.
Mac
Graph Paper Maker
Trial versionCreate & print custom sheets of graph paper.
Mac
Field Strength Calc
PaidField Strength Calc helps you determine the received strength of a transmitted signal.Enter in the transmitter power, antenna gains, distance, and...
iOS
Health Tracker
Paidgraphing tool tracks health-related measurements
Mac
DX ToolBox
Trial versionDX Toolbox: Your Go-To for Radio Propagation Data
Windows
Atomic PC
Trial versionThe Atomic PC: Comprehensive Periodic Table for Windows
WindowsKnitting Wizard
Trial versionKnitting Wizard: Design Custom Knitting Diagrams Effortlessly
Windows
MatchMaker
Trial versionOptimize Your Radio and Antenna Match Instantly
Windows
Sound Byte
Trial versionSound Byte: Digital Cart Machine for Radio and Effects
Windows
Graph Paper Maker
Trial versionCustom Graph Paper Maker with Precise Control
Windows