Part 1 protoboard construction - RadioUser magazine September 2016
Part 2 direct conversion background - RadioUser October 2016
Part 3 long wave receiver - RadioUser November 2016
Part 4 medium wave receiver - RadioUser December 2016
Part 5 NAVTEX primer - RadioUser January 2017
Part 6 NAVTEX circuit - RadioUser February 2017
Part 7 SW crystal controlled receiver - RadioUser March 2017
Part 8 crystal controlled receiver (80m) - RadioUser April 2017
Part 9 crystal controlled receiver (20/25m) - RadioUser May 2017
If you followed this series of constructional SDR articles in RadioUser magazine I hope you found them interesting.
As RadioUser magazine has changed editor and publisher and consequently undergoing editorial changes - time will tell if these changes increase or alienate readers - it is unlikely that I will be contributing another series.
Printed circuit board (57x23mm).
Sorry, all the circuit boards have now been sold.
Direct Conversion Receiver SDR.
Direct Conversion Navtex SDR.