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 SEPARATOR  ***********

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
>==========