• Register
  • Login
  • looking for something?

    RFSim99 is a freeware software that can help you in RF simulation, in your projects, especially if you are trying to design radio filters.

    RFSim99 works with S-parameters. This means that not only will it simulate and analyse circuits built out of its internal library of components, but that it can accommodate any circuit block or stage for which these are known.

    Installing RFSim99 on Windows 7 64-bit OS

    You can download the archived software using the link below, unzip it and then it should work properly. Thanks to Flyb4ck!

    Here is how to make RFSim99 work on Windows 7 64-bit OS. You must be running Windows 7 Professional OR Windows 7 Ultimate. Upgrade if you are running anything less. Next, download the Windows Virtual XP Mode for Windows 7 64-bit OS from Microsoft. This will allow you to run any XP program from Windows 7, 64-bit OS. It can be downloaded from Microsoft here: http://www.microsoft.com/windows/virtual-pc/download.aspx . Next, install RFSim99 under the Virtual XP Mode. It works great.
    Best regards,
    Chris Hudgins

    RFSim99 software screenshot

    rfsim99

    Video presentation of the software

    Please write your opinion and give us a feedback in the comments section about this great rf simulator tool. Did you encountered any problems with it?

    The video below shows a Touchstone S-parameter s2p file that was generated on a homebrew N2PK VNA being simulated in RFSim 99. The s-parameter s2p file is for a ITT 10.7MHz roofing filter.

    Find more projects
    

    37 Responses to "RFSim99 Download"

    subscribe to newsletter
    1. Newton S. says: on May 10, 2009 at 5:18 pm

      Good software

      • Installation on w7 is actually much simpler than described above.

        What doesn’t work on w7 is setup program – but application itself runs without problems.
        So, all you need is to copy sim99 program folder (with it’s content) from another computer, and to create necessary shortcuts (if you wish).

      • I tried following your advice – copied files from old XP machine to 64 bit win7 machine.

        It works ok opening and simulating existing files. Every type I try creating file it crashes.

        Any ideas how to fix this?

        And yes, it is very good software: concise, easy to use.

      • André Grange says: on January 16, 2014 at 10:17 am

        RF SIM 99 is designed to work on 32 bits PC.
        Use VIRTUAL BOX with WINDOWS XP: you can use all old 32 bits Windows softwares.

    2. Awesome software for any RF tech or Engineer to do proper design on the cheap. I like the way let’s open your S-paramters from you Network Analyzer and match the impedance with circuit type and values.

      • Karthikeyan says: on September 10, 2009 at 4:06 am

        Dear RF tech can you explain How to match the S parameters values with the Equivalent circuit to extract the values.

    3. very good.thanks

    4. a very good software

    5. Vasant Rathod says: on January 10, 2010 at 7:22 am

      A very useful software

    6. Very good software,i use this software long time for my radioamateur hoby. Thanks

    7. I wasn’t able to install on my Windows7 64-bit OS. Will there be a version to support that?

      • Hi, From memory, I 1st installed RFSim99 onto a Windows xp laptop then copied and transferred it to my Windows 7 64 bit laptop.

    8. It’s a very complete (and Free) RF software. Thanks

    9. I’ve used this SW off and on for several years. It is very straight forward and provides a number of good calculators for matching and filters. It’s inductor calculator is also usefull covering both hand wound and printed version. Similarly the microstrip calculator is handy for determining 50 ohm tracks on G10

    10. Muy bueno y funciona en linux con el simulador Wine

      gracias

    11. ok…..ok…..ok

    12. Victor C. says: on December 2, 2010 at 5:00 pm

      I love this software, I have used to help in to create commercial products and it works great. It is so easy to use, and it gives very accurate results.
      Esta muy bien este programa, lo utilizo bastante seguido.

      VC

    13. no list 0f transistor componen. but this software is good

    14. Genius. Just used this software to design a comms system – many thanks.

    15. no me anda en win7, alguien sabe como se puede hacer?

    16. very good software
      Thanks

    17. I seem to have a problem installing under Windows 7. I have tried to make sure it is not being “blocked”. I get the winzip extractor box, but then it says “unable to run setup.exe”.

    18. I’m also having trouble downloading onto Windows 7 64-bit.

    19. when i downloaded in my windows 7 (home basic)32-bit operating system, i couldn’t get the HELP section.

      • Has anyone managed to get this working on windows 7?

        I tried to extract the file with a different extractor but still didn’t have any luck. I have tried this with different versions of windows on multiple machines. I have also tried in compatibility mode with all older versions of windows.

        any more suggestions?

        @404wibbs

    20. Windows 7 Solution:

      http://www.eyou.com.au/product/rfsim99/

      Installing on Windows 7 64-bit OS
      Chris Hudgins (18.09.2010 06:11:24)
      Here is how to make RFSim99 work on Windows 7 64-bit OS. You must be running Windows 7 Professional OR
      Windows 7 Ultimate. Upgrade if you are running anything less. Next, download the Windows Virtual XP Mode
      for Windows 7 64-bit OS from Microsoft. This will allow you to run any XP program from Windows 7, 64-bit
      OS. It can be downloaded from Microsoft here: http://www.microsoft.com/windows/virtual-pc/download.aspx .
      Next, install RFSim99 under the Virtual XP Mode. It works great.

      Best regards,
      Chris Hudgins

    21. I have had no success in downloading this
      program for windows 7..does it work for windows 7 and how is it downloaded

    22. Nice tool. Although I have to study how to use it to design an BLF177 MOS VHF output match 70MHz / 50MHz.

      I could not install under WIN7pro64.

    23. Great software. Was looking for something like this! AND it does work on Windows 7 following the above directions.

    24. u r really good..

    25. Thanks a lot.
      This is very good tools for RF simulation.

    26. Thanks a lot.

    27. André GRANGE says: on August 17, 2013 at 4:05 pm

      Good software. It can be used under Linux and Wine.

    28. I have 64bit Win7 Home Premium.

      I loaded the Virtual PC from http://www.microsoft.com/en-us/download/confirmation.aspx?id=3702

      The program still woudldn’t install, but thanks to the tips here, I loaded it onto an old 32 bit machine and just moved the files across.

      It’s now running fine on 64Bit Win7 Home Premium. There seems to be no need for win7 Professional or Ultimate.

    29. Tin Zaw Cho says: on June 22, 2014 at 6:37 pm

      Does not work windws 7 Problem.

    30. Flyb4ck says: on July 9, 2014 at 5:11 pm

      I see people still commenting on this page so I’m assuming there is still interest in this software.
      I want to share my finding: the problem is that setup can’t run under the newest Windows OSs. So I installed using Windows XP and then moved every file on Windows 7. It seems to work good but I ask you if you can test it as well.
      You can find the software ready to be uncompressed here:
      https://drive.google.com/file/d/0B2WlP13cw_nOTldFVWJMXzk3aG8/edit?usp=sharing

    What do you think about this article? Leave a comment!

    You may add a picture too