Ham Radio 2000 #1

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Text File | 1994-08-13 | 11.1 KB | 267 lines

NOTE: Use Notepad to print this document 4/14/94 1.0 INTRODUCTION: FAISYN is a low cost, effective alternative to expensive commer- cial filter synthesis packages. The program has been used successfully to design countless lumped element filters and diplexers from 10's of KHz to 1.5GHz and is the result of many years experience in filter design. Many designers know that filter design is often an iterative process. In the old days a lot of tedious number grinding was required to arrive at an optimal solution. FAISYN eases the burden by allowing the designer to quickly synthesize a variety of circuits that can be simulated and compared using your favorite circuit simulator ( FAISYN currently supports PSPICE-TM Microsim, MMICAD-TM Optotek and TOUCHSTONE-TM HP/EESOF circuit formats). NOTE: An evaluation version of PSPICE capable of running FAISYN filter circuits is available at very low cost from Microsim Corp. 1.1 INSTALLATION: Under DOS The best approach is to save the all the files contained in FAISYN20.ZIP in a directory labeled FAISYN. Then type FAISYN at the command prompt as in the examples that follow. Example: c:\FAISYN>FAISYN OR C:\>FAISYN --> Assuming the dir FAISYN is in your path. Under Windows FAISYN works just fine when run as a DOS application under Windows. Copy all the files from FAISYN20.ZIP into the directory FAISYN. In Windows, click on File-New to pop up the New Program Object dialog box. Click Program Item and then OK, this causes the Program Item Properties dialog box to pop up. Type "FAISYN" in the Description Box, "c:\faisyn\faisyn.exe" in the Command Line Box and "c:\faisyn" in the Working Directory box. Click OK to finish. Alternatively, the program my be started in a window by typing c:\faisyn\faisyn.pif in the Command Line Box. You may want to change the font size when running in a window so you can see the entire menu. This is done while running FAISYN in the windowed mode and then clicking on the file draw icon in the upper left corner of the window and the "Fonts" submenu, etc (much easier than it sounds). 1.2 RUNNING FAISYN FOR THE FIRST TIME: The best way to get a feel for how the program works is by select- ing all the default settings as you work your way through the menus. If you make a mistake, just keep on going, you will get an opportunity to fix it on the next pass through the design. FAISYN uses modern filter design theory to compute lumped element low, high and bandpass filters. All filters are based on normalized low pass prototypes. The initial design menu will prompt you for the termination resistances and the filter order. Subsequent menus will prompt for the filter type, which can be Butterworth, Chebyshev or user defined (more about that later...), and will identify design options when available. A normalized low pass prototype will be displayed based on these initial design parameters. At this point the user will choose to transform the circuit into the lowpass, highpass or bandpass domains. Select "Start a new low pass prototype" at the appropriate menu to begin a new design. The "Enter prototype from table" option under the desired response menu allows users to enter normalized "gn" values from the many tables available in the literature. This allows the user to design more specialized responses (Gaussian etc.) without having to go through the frequency transformation or impedance scaling by hand. 2.0 REGISTRATION: There are many enhancements planned for the program, however the rate at which these will be implemented will depend on the response from the user community. FAISYN is SHAREWARE and is not free. The beauty of shareware is that it allows the user to try the software for a period of time to determine if it is truly useful before paying for it. Registering the product gives me motivation to make improvements and allows me to cover some of the costs involved (software, books & hardware, etc). So try it for thirty days and let your conscience be your guide! For those of you without a conscience (just kidding!) I have add- itional incentive. For five dollars plus the registration fee of $20.00 you can receive a set of application notes and a free update to the windows version (in development) of FAISYN. Note that program updates will be obtained from Bulletin boards, friends or ShareWare distributors. All registered users will be notified when these occur and where they can be down loaded. 2.1 "IN THE WORKS": Among the enhancements being planned are distributed filter design capability. In fact, the routines for edge coupled band pass filters have been recently been completed. Another product FAISYN-MATCH is also "in the works". FAISYN-MATCH aids in the design of broad band impedance matching networks and has been used to design state of the art high dynamic range RF and Microwave amplifiers. These are real world production designs, both discrete and monolithic. Again, registered users will be notified when this product is released. Comments and suggestions for future releases are welcome and greatly appreciated. Kevin Faison Carriage House Engineering 3.0 License Agreement ----------------- The use of FAISYN is subject to the following terms and condi- tions. FAISYN is copyrighted material. It is protected by the copy- right laws of the United States. You may not make any changes or modifications to FAISYN. You may not decompile, disassemble or otherwise reverse engineer the software in any way. You may use FAISYN on a trial basis provided you do not violate the protection afforded the licensed software by the copyright laws, and you agree to the terms of the license agreement. If you continue to use FAISYN past a 30 day evaluation period you are obligated to purchase a license for its use. You may use FAISYN on a Local Area Network providing that a license is obtained for the number of users that may concurrent- ly use the software. Information on site licenses is available by calling the author. A license for the use of FAISYN (DOS version) can be obtained by sending a $20.00 registration fee to: Kevin Faison Carriage House Engineering 16 West Pleasant Hill Rd. Owings Mills, MD 21117 (410)356-7088 (No credit cards are accepted at this time) (Please do not call after 7:00PM EST) The license fee paid for FAISYN is a one time fee. Licensed users may obtain and use future revisions of FAISYN (DOS Versions only) by Carriage House Engineering without re- registration. For a registration fee of $25.00 the user will receive a set of filter application notes and a free update to FAISYN (Windows version) when it becomes available. ********************************************************** * An order form is supplied in the file ORDER.FRM for * * your convenience! * ********************************************************** Title to the licensed software is NOT transferred to the end user. The end user is granted an exclusive license to use the software on one computer or computer work station at any given time. 4.0 Limited Warranty ---------------- Carriage House Engineering does not warrant that the licensed software will meet your requirements or that the operation of the software will be uninterrupted or error free. The warranty does not cover any media or documentation which has been subjected to damage or abuse by you or others. The software warranty does not cover any copy of the licensed software which has been altered or changed in any way. ANY IMPLIED WARRANTIES INCLUDING ANY WARRANTIES OF MERCHANT- ABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE LIMITED TO THE TERM OF THE EXPRESS WARRANTIES. Some States do not allow limit- ations on how long an implied warranty lasts, so the above limitation may not apply to you. The warranties set forth above are in lieu of any and all other express or implied warranties, whether oral, written, or implied, and the remedies set forth above are the sole and exclusive remedies. Carriage House Engineering is not responsible for any problems or damage caused by the licensed software that may result from using the licensed software. This includes, but is not limited to, computer hardware, computer software, operating systems, and any computer or computing accessories. End user agrees to hold Carriage House Engineering harmless for any problems arising from the use of the software. Carriage House Engineering SHALL NOT IN ANY CASE BE LIABLE FOR ANY SPECIAL, INCIDENTAL, CONSEQUENTIAL, INDIRECT OR OTHER SIMI- LAR DAMAGES ARISING FROM ANY BREACH OF THESE WARRANTIES EVEN IF Carriage House Engineering OR ITS AGENTS OR DISTRIBUTORS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. Some states do not allow the exclusion or limitation of incidental or con- sequential damages, so the above limitation or exclusion may not apply to you. In no case shall Carriage House Engineering's liability exceed the license fees paid for the right to use the licensed software. 5.0 FAISYN Distribution ------------------- You are granted a limited license to copy FAISYN only for the trial use of others subject to the terms of this software license agreement described herein, and the conditions described below are met: FAISYN MUST be copied in an unmodified form and MUST contain the following files: FAISYN.exe FAISYN.txt Order.frm No fee, charge or other compensation may be accepted or requested by anyone without the express written permission of Carriage House Engineering. Public Domain Disk Vendors may not charge a fee for FAISYN itself. However you may include FAISYN on a diskette for which you charge a nominal distribution fee. The purchaser of said diskette must be informed in advance that the fee paid to acquire the diskette does NOT relieve said purchaser from paying the Registration Fee for FAISYN if said purchaser uses FAISYN. Operators of electronic bulletin board systems (Sysops) may post FAISYN for downloading by their users without written permission only as long as the above conditions are met. A fee may be charged for access to the bbs as long as no specific fee is charged for downloading FAISYN files without first obtaining express written permission from Carriage House Engineering to charge such a fee. Distributors of public domain and user supported software, such as disk vending services, may not charge a fee for FAISYN itself. However you may include FAISYN on a diskette for which you charge a nominal distribution fee. The purchaser of said diskette must be informed in advance that the fee paid to acquire the diskette does NOT relieve said purchaser from paying the Registration Fee for FAISYN. The above constitutes the license agreement for FAISYN. It supersedes any and all previous license agreements.