Alan Biocca, W6AKB

Bill of Materials

• Arduino UNO board and development software
  http://www.arduino.com
• USB cable, standard A to B type
• Main Prototyping board, Twin Industries 4” x 5” 8000-45
  http://www.twinind.com
• SWR Detector prototyping board
  http://www.kitsandparts.com
• Sparkfun Arduino ProtoShield kit
  http://www.sparkfun.com
• LCD Keypad Shield v2.0
  http://www.emartee.com/product/42054/Arduino%20Keypad%20LCD%20Shield%20V2.0#tab1
  
• DDS-60 RF synthesizer board
  http://www.amqrp.or
• Voltage regulator board
  http://www.kitsandparts.com
• Rotary Encoder
  http://www.adafruit.com/products/377
• PCB mount BNC connector
  http://www.jameco.com, http://www.digikey.com
• Graphical Display
  http://www.sparkfun.com/products/936

SWR Bridge Parts

• D1,2 - 1N34A or similar germanium signal diode OR
• 1N5711, schottky signal diode OR
• 1N914 or 1N4148, silicon signal diode
• note that both diodes should be the same type, see text for details
• R1,2 - 47, 49.9 or 51 ohm quarter watt non inductive resistors (both same value)
• R3,4 - 100 ohm quarter watt non inductive resistors
• R5,6 - 10K quarter watt resistors
• C1,2,3 - 10 nF 50-100V monolithic ceramic capacitors
• Prototyping board
• Right angle pin, single row, 8 pins long, 0.1” centers

Pre Regulator Parts

• U1 LM7808 or LM7809 Regulator
• C4 47 uF 16VDC or higher
• C5,6 100 nF
• D3 1N4002
• UNO 9V Coaxial Power Plug
• 12Vin Anderson Powerpole

Other Parts

• Misc connectors, pins, wire, 4-40 hardware, rubber feet

References

• Source code for this project
  http://hamradioprojects.com/authors/w6akb/+sweeper/code

• Author’s Website
  http://www.akbeng.com/

• Arduino
  http://arduino.cc/en/Guide/HomePage

• Buddipole
  http://www.buddipole.com

• DDS-60
  http://midnightdesignsolutions.com/dds60/index.html

• Diodes in RF probe use
  http://www.cliftonlaboratories.com/diodes_for_rf_probes.htm

• Resistive SWR Bridge
  http://ludens.cl/Electron/swr/swr.html

Licensing

This software is distributed under the terms of the GNU General Public License. This hardware is licensed under the Creative Commons Attribution Share Alike for Hardware license.

About the Author

Alan Biocca is an extra class amateur radio operator licensed since 1967. He has a bachelor’s degree in Electrical Engineering and a master’s degree in Computer Science from UC Berkeley. He works at Lawrence Berkeley National Laboratory where he manages software projects and leads the controls group at the Advanced Light Source. He is also known for the design and manufacture of Pneumatic Antenna Launchers (www.AntennaLaunchers.com) as well as the Triple Ratio Balun and the FDLog Field Day Logging Program. Alan’s other hobbies include hi-tech flashlights, photography and electric bicycles. He recently changed his callsign from WB6ZQZ to W6AKB. He can be reached via email addressed to W6AKB at ARRL.net or through his website at www.akbeng.com.

License

The Software sketches in this project are licensed under GPL 3.0. COPYING

The hardware design of this project is licensed under the CC-BY-SA 3.0 license:
http://creativecommons.org/licenses/by-sa/3.0/