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

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On 30/06/2005 at 10:25 Mike Dennison wrote:

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 what software is used by group members when designing building and testing amateur radio equipment, including antennas and not just for LF.

This includes any software that is still available, whether it is freeware or paid-for

Also, do you have favourite web sites or discussion groups to exchange technical (not operating) information?

Are there any other ways you use a computer to improve your ability to make radio gear?

Any help would be appreciated, thanks.

73
Mike, G3XDV
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