I am writing a short chapter on using computers in amateur radio, for the new edition of the RSGB's Radio Communication Handbook. This is about construction and not operating, and I am interested in
For filter design I use AADE Filter Design version 4.03 For circuit simulation I am looking at Linear Technology LTC Spice/SwitcherCAD III but don't claim to be competent yet. 73 John G3PAI ** REPLY
Dear John, Thanks for providing this URL. I used to use a very old program running under DOS for designing filters but the AADE one looks like a very much better and improved tool. I also like the tu