Software Radio
| This link is my QEX article in PDF format, with permission from the ARRL. |
Beam Steering on 160 Meters
| The link below was my presentation at the Contest Forum at the 2008 Dayton Hamvention. I will be adding material to these slides as I translate my frequent hand-waving into additional text. |
Beam Steering on 160 Meters
Steerable Phased Array Pictures
| The next link was my initial announcement to the DttSP and Softrock Groups on Yahoo. |
Beam Steering in Combat
| The following links are my soapbox comments from a sequence of 160 meter contests during the 2007-2008 season. These comments represent a sort of development log for my phased array. |
Steerable Phased Array in a Contest
2007 Stew Perry Warm-Up
Steerable Phased Array in a Contest
2007 ARRL 160
Steerable Phased Array in a Contest
2007 Stew Perry
Steerable Phased Array in a Contest
2008 CQ WW 160
Steerable Phased Array in a Contest
2008 ARRL DX CW
| The next link is the paper I presented at the 2003 Digital Communications Conference in Hartford, Connecticut. I used an AD6644 evaluation board and a PC to implement an AM radio. This project was how I taught myself Digital Signal Processing. |
Off-the-Shelf Digital Radio (DCC paper)
Hardware for Software Radio
| I've designed a circuit board for 4 Softrock v6.2 receivers in parallel to facilitate phased antenna studies. The board eliminates the redundant oscillators and divider chains one would have using 4 original Softrock boards. |
 |
4 Channel Softrock Receiver4 Channel Softrock Receiver Schematic4 Channel Softrock Receiver Bill of Material |
