A selection of past projects

Some past projects to illustrate the broad range of circuits and systems we have designed


  • Motor speed control system - go here for more details
  • Bluetooth network hub and conference system - go here for more details
  • 5.8GHz Video with sound transmitter and matching receiver
  • Automatic meter reading system - go here for more details
  • A wide-band amplifier - go here for more details
  • Remote controlled video camera system for external use
  • Active Radar target enhancer for X-Band marine radar
  • 433MHz receiver module - go here for more details
  • High power noise sources for a test rack
  • Local Oscillator system for communication system test racks
  • RS485 networked industrial controller system (Touchscreen Windows control)
  • Novel Smoke detector design - currently seen in major stores
  • EMC Investigations on hand held computers
  • EMC investigations on in-car DVD players
  • RFID UHF antennas for body worn applications
  • 10W S-Band transmitter
  • 950 to 1750MHz low noise AGC controlled amplifier
  • Mobile phone detector - 900 and 1800MHz GSM
  • Bluetooth RF system design
  • 2.4GHz and 5.8GHz printed band pass filters
  • 2.3GHz Voice transmitter and receiver for linking repeater sites


    • We have a small RF conversions program available for download which may save some time
    on some common RF calculations

    It has routines for converting between serial and parallel equivalent components, Signal level conversions, Reactance calculations, S11 (dB and angle) to series components, and path loss calculation for free space and some more real life models


    Other functions may be added from time to time.

    Download Convert1.exe