AADE Filter Design is FREE for download
Version 4.0 added two new types of SSB crystal ladder filters described in an article " Modern Network Theory Design of Single-Sideband Crystal Ladder Filters, M. Dishal, Proceedings of the IEEE December 1963"
Version 4.11 adds the ability to store up to six sets of crystal parameters from your collection of crystals.
That way you don't have to re-enter them everytime you want to design a crystal filter.
Adds a little more to the crystal filter tutorial in the HELP file.
4.2 adds the ability for odd order Elliptic filters to have user specified input / output impedances that are different.
4.3 is an update to the HELP file. update is optional.
4.4 adds a "troubleshooting installation" item to the HELP menu No change to program so if yours works you don't need this.
Since nobody seems to read the web troubleshooting information I have put it in the program as well.
|TROUBLESHOOTING those rare problems|
For Windows XP, Some functions of Filter Design may not work when the program is launched from the START menu or desktop icon.
|HLink is no longer required
for new downloads so this problem will not exist.
|You try to open the help file and notice a weird error message Cannot
open the file:Mk:@MSITStore:\Filter\fdhelp.chm.
problem is caused by the file hhctrl.ocx located in
your System32 folder and most likely has been overwritten by an application with an
If your version number is less than the current version then install fdupdate.exe (12.1Mbytes)
AADE Filter Design is now FREEWARE.
My apologies to those who paid for it earlier.
Click here to view some of the added features
Download and Installation Instructions.
Download fdinstall.exe (14.3Mbytes) which, with IE shows the following, (Netscape has a similar function)
and select to either which will download the file and then run it to install.
select to which will save the file to your specified location and then you should RUN the fdinstall.exe to install.
Program works best at 1024 X 768 resolution or greater, its nice at 800 X 600, barely usable at 640 X 480
AADE Filter Design version 4.x is greatly enhanced over the previous version.
It offers several new features.
It has STATISTICAL ANALYSIS.
It designs TOROID and AIRWOUND inductors.
It designs resistive ATTENUATORS.
It has several powerful TRANSFORMATIONS
that enable you to modify component values to make the filter easier to build and align.
It also has a giant HELP system
which is far more than just how to use the program. It is a tutorial in filter design and analysis.