Black Cat Systems
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Windows Software
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Linux Software
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Radiation Detectors
USB Icom CI-V Interface
MIL-STD-188 Interface

Radio Hobbyist Products

  22m Part 15 Beacon Kit
  Antenna Transformer

General Interest Programs

  Atomic Mac/PC
  Audio Toolbox
  Black Cat Timer
  Diet Sleuth
  Graph Paper Maker
  Health Tracker
  Image Resizer
  Knitting Wizard
  Label Wizard
  Prog Audio Gen
  Sound Byte
  Synth 76477

Amateur Radio Programs
  AirSpyHF+ Server
  Black Cat CW Keyer
  Black Cat SSTV
  Carrier Sleuth
  Cocoa 1090
  Cocoa RTL Server
  DGPS Decoding
  DX Toolbox
  eQSL Factory
  Morse Mania
  RF Toolbox
  Squid Transformer

iPhone/iPad Apps
  Atoms To Go
  dB Calc
  Clik Trak
  DGPS Decoder
  Drill Calc
  DX Toolbox
  Elmer Extra
  Elmer General
  Elmer Tech
  Feld Hellschreiber
  Field Strength Calc
  Function Generator Pad
  HF Weather Fax
  Morse Mania
  Morse Pad
  Packet Pad
  PSK31 Pad
  SSTV Pad
  Photon Calc
  Rad Map Tracker
  RF Link Calc
  SelCall Tone Gen
  Sound Byte
  Sound Byte Control
  Spectrum Pad
  SWBC Schedules
  Synth 76477
  Synth Motion
  Transmission Line Calc
  Weather Calc
  Wire Calc

iPhone/iPad Bundles
  RF Calculator Apps
  Ham Radio Decoder Apps
  Audio Utility Apps
  Shortwave Weather Apps
  Ham Radio Exam Study Apps
  Shortwave Decoder Apps

Android Apps
  Audio Function Generator
Audio Spectrum Analyzer
DGPS Decoder
  HF Weather Fax
  Rad Map Tracker
  SelCall Tone Gen
  Sound Byte Control
  SWBC Schedules
  Wire Calc

About Black Cat Systems
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Our software for Mac OSX
Privacy Policy
Apple /// Emulator

Macintosh Links
Shortwave Radio
Pirate Radio
Spy Numbers Stations
Science and Electronics
Ham Radio Software
Geiger Counters



You can download a copy of Mac Audio Toolbox, and try it out for yourself. The latest beta version, if any, is also listed at the bottom of this page.

For macOS 10.9.5 through 10.14 :
MacAudioToolbox OSX (DMG Disk Image, Version 3.0.0, 64 bit, May 10, 2018)

MacAudioToolbox OSX (Zipped, Version 3.0.0, 64 bit, May 10, 2018)

For Windows 7, 8, 10 (Note! This is a beta version, and is not fully featured):
AudioToolbox (Zipped, Version 4.0.0b1, June 28, 2018)

For Mac OS X 10.6-10.9:
MacAudioToolbox OSX (Zipped, Version 2.2.0)

For Mac OS X 10.5 or earlier:
MacAudioToolbox OSX (Zipped, Version 1.8.0)

For older PowerPC Macs running MacOS 9:
MacAudioToolbox (416k, Version 1.8.0)