AIM Program Update  
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NEW Oct 20, 2014 -- Version: AIM_882.
This version can be used with the AIMuhf, AIM4170 and the PowerAIM.

New features in version 880 and 882:

  • The problem with the control buttons in version 880 being off the screen has been resolved in version 882.
  • Overlay scan files with any limits. The plotting style can be specified. The plots can be done with circles, squares, wide lines, etc to distinguish overlaid files. (Scan files from earlier versions of the AIM program can be recalled and overlaid.)
  • The graph size can be changed by dragging it with the mouse or specifying numeric values in a dialog box. Graph size and also be entered manually in pixels or percent. (The previous graph size can be restored by clicking "previous graph size".)
  • Programmable Trigger Output (see Appendix 14).
  • Improved performance for low values of series resistance.
  • Improved crystal measurements for high Q crystals.
  • New cal file data format. This allows for new features but new cal files are required for versions after AIM_880.
  • Fixed freq values in CSV file so they're the same as those in the SCN file.
  • Added labels to the band highlight areas, for example, 40M, 20M, 15M, etc
  • Amplitude programming in the Constant Freq mode can be used with AIMuhf and AIM4170D.
  • Added function to calculate length of phasing line.
  • Fixed BitMap function so it always shows the whole AIM graph.
  • Stub tuning runs much faster now.
  • Optional cursor for a tablet pc makes it easier to move the vertical data cursor. (refer to the Setup menu)

    Latest version: AIM_882.zip
    Previous version: AIM_880A.zip (Released on Sept 2, 2014)

    Here's a diagram showing the AIM menus.


    The latest version of the VNAuhf program is here:
    VNAuhf PROGRAM UPDATE


    The latest version of the VNA program is here:
    VNA PROGRAM UPDATE - version VNA_546B


    If you are using a USB interface, here's some helpful information.

  • June 10, 2013 -- Version: AIM_865A.
    This version can be used with the AIMuhf, AIM4170 and the PowerAIM.

    New features in version 865A:

    • The smoothing function has been refined for a more accurate display.
    • The config file is checked more careful to make sure it is valid.
    • The distance scale for the TDR plot is now correct when the scale factor is changed after a scan.
    • The graph overlay feature has been fixed.

    Latest version: AIM_865A.zip
    Previous version: AIM_865.zip

    Here's a diagram showing all the AIM menus.


    The latest version of the VNAuhf program is here:
    VNAuhf PROGRAM UPDATE


    The latest version of the VNA program is here:
    VNA PROGRAM UPDATE - version VNA_542


    If you are using a USB interface, here's some helpful information.

    June 10, 2013 .
    The manual for the AIM4170 is available in html format.
    AIM manual in English:    www.w5big.com/AIM_122212.htm
    By entering this URL into the dialog box of the Google translation program, the manual can be displayed in other languages. Although the translation is not perfect, it can be helpful. Unfortunately, Google does not display the pictures and graphs. (if anyone knows how to resolve this problem, please let me know). You can open the English version in one web browser page and the other language in another browser to view the pictures side by side with the translated text.

    For convenience, some direct links to the manual in other languages are included below:
    Deutsch
    Français
    Español
    Português
    Italiano
    Danske
    Norsk
    Svenska
    Polski
    Russian
    Japanese

    June 2, 2013 -- Version: VNAuhf_625.
    This version can be used with the VNAuhf.

    New features in version 625:

    • TDR plot is consistent when plot distance scale factor changes.
    • Fixed antenna bandwidth measurement.
    • Changed SWR scales to show "round" numbers per division
    • Bandscan magnitude values can be readout with the cursor.
    • Fixed band highlighting flag.

    Dec 31, 2012 -- Version: AIM_862A.
    This version can be used with the AIMuhf, AIM4170 and the PowerAIM.

    New features in version 862A:

    • Tune cable stubs for any specified wavelength.
    • Fixed check for ID number in cal file.
    • Fixed cal file display in lower right corner
    • Point Data logging in tune mode and in single shot mode.
    • Display s11 as a complex number in Point Data window.
    • Update of the DLL and its documentation.
    • Updated manual.
    • Problem loading custom cal files has been fixed.

    Latest version: AIM_862A.zip
    Previous version: AIM_860D.zip

    Aug 24, 2012 -- Version: AIM_858B.
    This version can be used with the AIMuhf, AIM4170 and the PowerAIM.

    New features in version 858B:

    • New numbering system for SWR scale so it's easier to read.
    • SWR offset for plotting can be selected on the Setup menu.
    • SWR scale numbers are "round" numbers.
    • New SWR scales with higher resolution when SWR is low.
    • Changed the word "theta" to "phase" on the display, numeric values are the same as before.
    • Multiple colors for plotting Smith chart as the trace loops around.
    • Updated link to twelfth-wave matching transformer application note.
    • Custom cal files have *.ccal extension. Older files can still be used.
    • A problem when calibrating the PowerAIM has been fixed.

    Latest version: AIM_858B.zip
    Previous version: AIM_858.zip

    May 8, 2012 -- Version: AIM_856B.
    This version can be used with the AIMuhf, AIM4170 and the PowerAIM.

    New features in version 856B:

    • Marker data shows capacitance and inductance if these parameters are being plotted.
    • Enable DSP filters for all AIM models. Updated manual.
    • More resonant freq values are printed across the top line of the graph.

    Program download: AIM_856B.zip

    All the files and the manual are included in this zip file.

    Jan 2, 2012 -- Version: AIM_852A.
    This version can be used with the AIMuhf, AIM4170 and the PowerAIM.

    New features in version 852A:

    • DLL file with routines that can be called by a user program in any language.
    • Data logging while in the Point Data Tune mode. An Excel compatible file is created.
    • High resolution flag is now saved in the TDR scan file.

    Program download: AIM_852A.zip

    This update is for all models of the AIM4170, including the new AIMuhf and also the PowerAIM.
    All the files and the manual are included in this zip file.

    Oct 12, 2011 -- Version: AIM_846.
    This version can be used with the AIMuhf, AIM4170 and the PowerAIM.

    New features in version 846:

    • A scan can be saved as a reference and then subtracted from subsequent scans.

    Program download: AIM_846.zip

    This update is for all models of the AIM4170, including the new AIMuhf and also the PowerAIM.
    All the files and the manual are included in this zip file.

    Sept 15, 2011 -- Version: AIM_845C
    This version can be used with the AIMuhf, AIM4170 and the PowerAIM.

    New features in version 845C:

    • More robust to handle early models of the PowerAIM.

    Program download: AIM_845C.zip

    This update is for all models of the AIM4170, including the new AIMuhf and also the PowerAIM.
    All the files and the manual are included in this zip file.

    Sept 3, 2011 -- Version: AIM_845B
    This version can be used with the AIMuhf, AIM4170 and the PowerAIM.

    New features in version 845B:

    • Plot inductance and capacitance.
    • Labels for traces.
    • Documentation on the sync output function.
    • Manual has been updated.

    Program download: AIM_845B.zip

    This update is for all models of the AIM4170, including the new AIMuhf and also the PowerAIM.
    All the files and the manual are included in this zip file.

    May 5, 2011 -- Version: AIM_840A
    This version can be used with the AIMuhf, AIM4170 and the PowerAIM.

    New features in version 840A:

    • TDR (time domain reflectometery) function has been added.
    • TDR files can be viewed in the Demo mode.
    • Both SWR rulers are displayed on the Smith charts.
    • Some issues with TDR scan file names have been fixed.
    • Manual has been updated.

    Program download: AIM_840A.zip

    This update is for all models of the AIM4170, including the new AIMuhf and also the PowerAIM.
    All the files and the manual are included in this zip file.

    Mar 28, 2011 -- Version: AIM_835.
    This version can be used with the AIMuhf, AIM4170 and the PowerAIM.

    New features in version 835:

    • Smoothing function has been improved for the SWR and Return Loss displays.
    • SWR ruler works with logarithmic scales.
    • Scan overlay function has been fixed.
    • Rescan button works with the Band Scan function.
    • Point Data mode has been fixed so it is correct when smoothing is turned on or off.
    • Manual has been updated.

    Program download: AIM_835.zip

    This update is for all models of the AIM4170, including the new AIMuhf and also the PowerAIM.
    All the files and the manual are included in this zip file.

    Feb 16, 2011 -- Version: AIM_832B.
    This version can be used with the AIMuhf, AIM4170 and the PowerAIM.

    New features in version 832B:

    • Test setup parameters can be saved in a user-specified State file and transfered to another AIM if desired,
    • Press CONTROL key when swapping graphs to overlay them.
    • Offset values can be applied for plotting Zmag, Theta, Rs, Xs and Return Loss
    • Two rulers can be displayed to help visualize critical values for SWR, Zmag, Theta, Rs, Xs and Return Loss
    • Display the data corresponding to two frequencies and their differences in a window. (Press numeric 1 and 2 keys.)
    • A problem with custom cal has been fixed.
    • Fixed marker display for parallel impedance values, Rp, Xp.
    • The manual has been updated 2-14-11.

    Program download: AIM_832B.zip

    This update is for all models of the AIM4170, including the new AIMuhf and also the PowerAIM.
    All the files and the manual are included in this zip file.

    Feb 12, 2011 -- Version: AIM_832A.

    New features in version 832A:

    • This version can be used with the AIMuhf, AIM4170 and the PowerAIM.
    • Offset values can be applied for plotting Zmag, Theta, Rs, Xs and Return Loss
    • Two rulers can be displayed to help visualize critical values for SWR, Zmag, Theta, Rs, Xs and Return Loss
    • Display the data corresponding to two frequencies and their differences in a window. (Press numeric 1 and 2 keys.)
    • A problem with custom cal has been fixed.
    • The manual has been updated.

    Program download: AIM_832A.zip

    This update is for all models of the AIM4170, including the new AIMuhf and also the PowerAIM.
    All the files and the manual are included in this zip file.

    Jan 10, 2011 -- Version: AIM_824.

    New features in version 824:

    • This version can be used with the AIMuhf, AIM4170 and the PowerAIM.
    • Crystal measurement function is more robust and the lowest frequency is 25 KHz.
    • Trace colors alternate when doing a Rescan or Recycle.
    • Recycle mode erases the screen after a user specified number of scan (Recycle Depth).
    • A new smoothing algorithm has been implemented.

    Program download: AIM_824.zip

    This update is for all models of the AIM4170, including the new AIMuhf and also the PowerAIM.
    All the files and the manual are included in this zip file.

    Aug 22, 2010 -- Version: AIM_700C.

    New features in version 700C:

    • These features are the same as AIM_700B but a problem with the external control procedure that caused the cpu to be busy too much of the time has been fixed. This allows other programs to run more smoothly when the AIM program is active.
    • Mouse enable function is controlled by Setup Menu instead of the config file.
    • External control function is more reliable. Example control file is included. Manual Appendix 10 is updated.
    • Vertical grid lines are highlighted at frequency labels. This makes the graph easier to read.
    • Complete AIM manual is accessible by the Help menu (pdf format).

    Program download: AIM_700C.zip

    This update is for all models of the AIM4170 and also the PowerAIM.
    All the files and the manual are included in this zip file.

    Aug 2, 2010 -- Version: AIM_700B.

    New features in version 700B:

    • Mouse enable function is controlled by Setup Menu instead of the config file.
    • External control function is more reliable. Example control file is included. Manual Appendix 10 is updated.
    • Vertical grid lines are highlighted at frequency labels. This makes the graph easier to read.
    • Complete AIM manual is accessible by the Help menu (pdf format).

    Program download: AIM_700B.zip

    This update is for all models of the AIM4170 and also the PowerAIM.
    All the files and the manual are included in this zip file.

    Apr 1, 2010 -- Version: AIM_688D.

    New features in version 688D:

    • Averaging for the PowerAIM has been increased to 256x.

    Program download: AIM_688D.zip

    This update is for all models of the AIM4170 and also the PowerAIM.
    All the files and the manual are included in this zip file.

    Jan 28, 2010 -- Version: AIM_688B.

    New features in version 688B:

    • The hang up problem in the recycle mode has been fixed.

    Program download: AIM_688B.zip

    All the files and the manual are included in this zip file.

    Jan 10, 2010 -- Version: AIM_688A.

    New features in version 688A:

    • Option to set scan limits to correspond to the custom cal file when it's loaded.
    • Min scan width goes down to 1KHz.
    • Stop numbering SWR scale with values less than one.
    • Increase cal and data scan points to 30000.
    • Quarter wave tuning stub routine has been improved.

    Program download: AIM_688A.zip

    All the files should be placed together in the same folder.

    If you have been using a comm port other than port 1, be sure to enter the new port value. The default in the *.ini file is comm 1 now.

    Sept 14, '09 -- Version: AIM_685.

    New features in version 685:

    • "Distance to Fault" function is more robust.
    • Reference value for Zo in Smith chart is set to the user specified value.
    • Zo measurement function has been added.
    • Config file has the correct default name for the voice output file now.
    • For calibration, use the value of averaging set by the user if it is greater than 16x.

    Program download: AIM_685.zip

    All the files should be placed together in the same folder.

    If you have been using a comm port other than port 1, be sure to enter the new port value. The default in the *.ini file is comm 1 now.

    Apr 29, '09 -- Version: AIM_684a.

    New features in version 684a:

    • Twenty markers can be defined to collect data at specific frequencies. The SWR at each marker frequency is displayed both numerically and graphically with an analog gauge to aid in adjusting multiband antennas.
    • Two Smith charts can be displayed simultaneously with different zoom values. The data on one chart can be rotated by a specified amount (electrical degrees).
    • The manual has been updated.
    • Fixed some problems with version 683.

    Program download: AIM_684a.zip

    All the files should be placed together in a new folder.

    If you have been using a comm port other than port 1, run Setup -> Find Comm Port to reinitiallize the comm port number. The default in the *.ini file is comm 1 now.

    Dec 11, '08 -- Version: AIM_675A.

    This version can be used with the AIM4170, AIM4160 or the AIM430.

    New features in version 675A:

    • Low freq resolution alert. If Zmag changes too much between data points, a smaller freq step is recommended (but not required). Sensitivity can be set by the user in the config file.
    • Zo entry box has increment/decrement buttons and refreshes the graph.
    • Test for RF overload and open the isolation relay immediately.
    • Gray out band names if they are not enabled (start freq < 0.1).
    • After custom cal, a comment displays the start/stop/delta limits on the graph.
    • Increased precision of crystal parameter display for more accurate crystal filter calculations.
    • Speed up display rate of Smith chart in Point Data Tune mode.

    Program download: AIM_675A.zip

    All the files should be placed together in a new folder.

    Note: the config file has an new parameter for setting the sensitivity of the frequency step size alert. This is just a reminder feature and can be ignored with no affect on accuracy. The alert can be disabled by setting the parameter to 100.

    If you have been using a comm port other than port 1, run Setup -> Find Comm Port to reinitiallize the comm port number. The default in the *.ini file is comm 1 now.

    Oct 1, '08 -- Version: AIM_670A.

    This version can be used with the AIM4170, AIM4160 or the AIM430.

    New features in version 670:

    • Plot Point Data on Smith chart while tuning or adjusting freq.
    • Option to start graph at freq=0.
    • Click on .scn file to launch program and display the .scn file.
    • Show date and time on Smith chart.
    • Option to load and overlay graphs. (Start/End freqs must be the same.)
    • Custom cal start freq can be as low as 100KHz.
    • Graph legend is in a separate window that can be repositioned.
    • Plot Q vs. Frequency.
    • Display Q in data window on right side.
    • Menu item (under 'Help') to check for program update.

    Program download: AIM_670A.zip

    All the files should be placed together in a new folder.

    If you have been using a comm port other than port 1, run Setup -> Find Comm Port to reinitiallize the comm port number. The default in the *.ini file is comm 1 now.

    ==== USB/RS232 CONVERTERS ====

    Since many new computers don't have an RS232 port, you can operate the AIM4170 with a USB/RS232 converter which simulates a comm port. Some converters come with software that defaults to a particular comm port, for example, COMM 5. In that case, you can specify the comm port using the AIM Setup menu tab. Enter the appropriate number and this will be saved in the .ini file. Alternatively, you can click Setup -> Find Comm Port and the program will scan all the ports to find where the USB adapter has been assigned.

    There are a large number of USB/RS232 converters available. If you don't already have a USB adapter, you can get one from Array Solutions at the time you order the AIM4170.

    The driver for this Byterunner USB adapter type Y-105 is supplied on a small CD in the package, or you can download it here.

    There is more information about the USB interface on the FAQ page.

    ==== DEMO PROGRAM ====

    The latest version of the program shown above will run in the demo mode if the AIM hardware is not present. You can load the sample scan files and display the data with the cursor.



    To see if a new version of the AIM program is available, click Help -> Check for Prog Update. This will open your web browser to the program update page.


    To be notified automatically when the AIM4170 program is updated, subscribe here.

    The FORUM can be used to keep up with the latest application news and to ask questions of other users.

    July 2, '08 -- Version: AIM_660.

    This version can be used with the AIM4170, AIM4160 or the AIM430.

    New features in version 660:

    • Band skipping greatly speeds up analysis of multiband antennas.
    • Audible output for SWR reading. Listen to the AIM at a remote location.
    • SWR can be plotted on log scales. Greater dynamic range for SWR display.
    • Graph legend only shows the traces that are enabled.
    • The manual has been updated.

    Program download: AIM_660.zip

    All the files should be placed together in a new folder.

    After downloading the new program, recalibrate your AIM.
    Click: Calibrate -- > Analyzer.

    If you have been using a comm port other than port 1, run Setup -> Find Comm Port to reinitiallize the comm port number. The default in the *.ini file is comm 1 now.

    Apr 4, '08 -- Version: AIM_655.

    This version can be used with the AIM4170, AIM4160 or the AIM430.

    New features in version 655:

    • A line extension function can be used to compensate for adapters and jumper cables.
    • A legend showing the graph styles can be displayed to include in documentation.
    • Smith Chart is updated dynamically while in recycle mode.

    Program download: AIM_655.zip

    All the files should be placed together in a new folder. When the program is unzipped, it will automatically create a new sub-folder called "Applications-Help".

    After downloading the new program, recalibrate your AIM.
    Click: Calibrate -- > Analyzer.

    If you have been using a comm port other than port 1, run Setup -> Find Comm Port to reinitiallize the comm port number. The default in the *.ini file is comm 1 now.

    Feb 2, '08 -- Version: AIM_650.

    This version can be used with the AIM4170, AIM4160 or the AIM430.

    This update has several significant new features:

    • A custom calibration procedure is available for special applications. This allows the user to specify the frequency range over which the calibration is done and also the spacing of the calibration points. This optimizes the calibration for situations involving filters and complex transmission lines. This procedure takes the place of 'ref to antenna method A'. Method B is still available to use when it is not practical to calibrate at the far end of a cable.

      A new section in the manual covers the custom calibration procedure in detail.

      (The original calibration procedure still works the same and files with the extension *.acal are still valid.)

    • The AIM can now be controlled easily by an external program. This makes it possible to integrate the AIM with another program so it can be used as part of a test system.

    • The last two scans are saved so you can flip back and forth between them with the up/down arrow keys.

    • The crystal measurement routine has been improved and the data can be saved in an Excel file. This makes it easier to match crystals that are used in filters.

    • Each trace on the graph can highlighted with special marks. This is especially handy when graphs are printed in black and white. These marks are specified under the Setup->Graph_Styles menu.

    • A comment can be entered when cal data or scan data are saved.

    • A status window (under the Help tab) displays file comments and pathnames.

    • The manual has been updated with information about these new features.

    All the files should be placed together in a new folder. When the program is unzipped, it will automatically create a new sub-folder called "Applications-Help".

    After downloading the new program, recalibrate your AIM.
    Click: Calibrate -- > Analyzer.

    If you have been using a comm port other than port 1, run Setup -> Find Comm Port to reinitiallize the comm port number. The default in the *.ini file is comm 1 now.

    Jan 10,'08 -- The Quick Start Guide has been updated.

    Dec 1,'07 -- Version: AIM_628.

    This version can be used with the AIM4170, AIM4160 or the AIM430.

    New Features:

    • There can be separate folders for the cal, scan, config, and bmp files. The last folder used is remembered, making it easier to organize these files.
    • The cursor is disabled/enabled by the left mouse button. The action can be reversed by changing the "cursor enable" flag in the config file.

    Program download: AIM_628.zip

    All the files should be placed together in a new folder. When the program is unzipped, it will automatically create a new sub-folder called "Applications-Help".

    After downloading the new program, recalibrate your AIM.
    Click: Calibrate -- > Analyzer.

    If you have been using a comm port other than port 1, run Setup -> Find Comm Port to reinitiallize the comm port number. The default in the *.ini file is comm 1 now.

    Nov 9,'07 -- Version: AIM_626

    This version can be used with the AIM4170, AIM4160 or the AIM430.

    New Features:

    • Q measurement function.
    • Antenna Bandwidth function.
    • Zmag scales for 50, 20, 10 ohms full scale.
    • Save graph as bitmap.
    • Accept entry of complex numbers for Zo.
    • Use complex value of Zo to calculate SWR.
    • Freq scan limits can be entered in KHz.
    • Config file editor under the Help menu.

    Program download: AIM_626.zip
    (This includes the latest manual dated Nov 7,'07.)

    All the files should be placed together in a new folder. When the program is unzipped, it will automatically create a new sub-folder called "Applications-Help".

    After downloading the new program, recalibrate your AIM.
    Click: Calibrate -- > Analyzer.

    Sept 13,'07 -- Version: AIM_623.

    This version can be used with the AIM4170, AIM4160 or the AIM430.

    New Features:

    • Don't move cursor if the control key is pressed. This makes it easier to position the cursor and then select something from the menu.
    • If theta goes to zero during cal with open circuit, issue a warning. This applies when a long stub is attached to the RF connector for calibration. This warning can be disabled with a flag in the configuration (*.cfg) file.
    • Distance to Fault also displays Zo.
    • Changed date format on graph to MM DD, YY (instead of all numbers). This avoids the problem of ambiguous dates.
    • Fixed several problems in tuning stub trim routine.


    (This includes the latest manual dated Sept 3,'07.)

    All the files should be placed together in a new folder. When the program is unzipped, it will automatically create a new sub-folder called "Applications-Help".

    After downloading the new program, recalibrate your AIM.
    Click: Calibrate -- > Analyzer.

    July 27,'07 -- Version: AIM_622D.

    This version can be used with the AIM4170, AIM4160 or the AIM430.

    New Features:

    The earlier version 622 did not work with some computers due to a communication problem with the USB/RS232 interface. Hopefully, this update will take care of that problem.

    Program download: AIM_622D.zip
    (This includes the latest manual dated June 5,'07.)

    All the files should be placed together in a new folder. When the program is unzipped, it will automatically create a new sub-folder called "Applications-Help".

    After downloading the new program, recalibrate your AIM.
    Click: Calibrate -- > Analyzer.

    July 10,'07 -- Version: AIM_622.

    This version can be used with the AIM4170, AIM4160 or the AIM430.

    New Features:

    • The Help File has been updated, an index has been added and pictures illustrate the command menus.
    • A new applications file has been added. Click the "Help" menu -> "Applications".

    Program download: AIM_622.zip
    (This includes the latest manual dated June 5,'07.)

    All the files should be placed together in a new folder. When the program is unzipped, it will automatically create a new sub-folder called "Applications-Help".

    After downloading the new program, recalibrate your AIM.
    Click: Calibrate -- > Analyzer.

    June 8,'07 -- Version: AIM_620.

    This version can be used with the AIM4170, AIM4160 or the AIM430.

    New Features:

  • An audio tone related to the SWR can be output to the PC speaker so tuning adjustments can be made without looking at the monitor. The tone limits can be user specified.
  • An SWR circle is plotted on the Smith chart.
  • Save and restore last graph when closing the program and restarting it.
  • Automatically find comm port up to number 64. Halt button stops scan.

    Program download: AIM_620b.zip
    (This includes the latest manual dated June 5,'07.)

    All the files should be placed together in a new folder.

    After downloading the new program, recalibrate your AIM.
    Click: Calibrate -- > Analyzer.

  • May 17,'07 -- Version: AIM_614.

    This version can be used with the AIM4170, AIM4160 or the AIM430.

    New Features:

  • Specify number of sample points in the "step freq" dialog box with any value greater than 20.
  • Corrected display of electrical length in Smith chart window.
  • Added trend function to filter plotted data.
  • Option to clear screen during Recycle mode (flag in config file)
  • Cursor data readout continues to end of scan, even when Stop Freq is less than full graph width.
  • Corrected meters/feet display in the Cable Measurement routine.

    Program download: AIM_614.zip
    (This includes the latest manual dated May 14,'07.)

    All the files should be placed together in a new folder.

    After downloading the new program, recalibrate your AIM.
    Click: Calibrate -- > Analyzer.

  • Mar 30,'07 -- Version: AIM_610.

    This version can be used with the AIM4170, AIM4160 or the AIM430.

    New Features:

    This version of the program will sense the computer's screen size and adjust the display. There are several parameters in the configuration file (*.cfg) that can be customized by the user. The earlier version (565) was optimized for 1024x768. This new version has all the same features and is intended to work with 1024x768, 800x600, and 640x480. This will make it useable with small PC's for increased portability. The screen size can also be increased for use with larger monitors. You can use the same program and files on all your computers by just changing the config file.

    This has a lot of cosmetic changes. If you see something that needs attention, please send me a screen shot illustrating the problem.

    The operating features are the same as version 565.

    Program download: AIM_610.zip
    (This includes the latest manual dated Mar 6,'07.)

    All the files should be placed together in a new folder.

    After downloading the new program, recalibrate your AIM.
    Click: Calibrate -- > Analyzer.

    Mar 27,'07 -- Version: AIM_601m.

    This version can be used with the AIM4170, AIM4160 or the AIM430.

    New Features:

    This is a preliminary version of a new program that will sense the computer's screen size and adjust the display. There are several parameters in the configuration file (*.cfg) that can be customized by the user. The earlier version (565) was optimized for 1024x768. This new version has all the same features and is intended to work with 1024x768, 800x600, and 640x480. This will make it useable with small PC's for increased portability. You can use the same program and files on all your computers by just changing the config file.

    This has a lot of cosmetic changes. If you see something that needs attention, please send me a screen shot illustrating the problem.

    The operating features are the same as version 565.

    Program download: AIM_601m.zip
    All the files should be placed together in a new folder.

    After downloading the new program, recalibrate your AIM.
    Click: Calibrate -- > Analyzer.



    The latest manual can be downloaded by itself here.

    Mar 20,'07 -- Version: AIM_565.

    This version can be used with the AIM4170, AIM4160 or the AIM430.

    New Features:

    • Fixed communication routine so it will correctly handle port numbers larger than 9.
    • Close Smith chart when Scan/Rescan/Recycle buttons are clicked. This avoids confusion between the new scan data and the previous Smith chart plot.
    • Added a wait-timer in communication routine to allows external devices, like Bluetooth, to sync up. This value can be specified in the config file.
    • The manual is the same as version 564.
    Program download: AIM_565.zip
    (This includes the manual dated Mar 16,'07.)

    All the files should be placed together in a new folder.

    After downloading the new program, recalibrate your AIM.
    Click: Calibrate -- > Analyzer.

    Mar 17,'07 -- Version: AIM_564.

    This version can be used with the AIM4170, AIM4160 or the AIM430.

    New Features:

    • A function to find the active comm port has been added to the Setup menu. This is handy when using a USB adapter. Set up the hardware, then click "Find Comm Port".
    • Any comm port up to 65000 can be specified.
    • A smoothing function has been added to the Setup menu. This does a running avg of each scan.
    • The default unit for length can be feet or meters. This is specified by a flag in the configuration (.cfg) file.
    • The start and stop scan limits can be set using the cursor. (see manual for details)
    • When the plot parameters are changed, the graph is redrawn using the last scan data.
    • The manual has been updated and new information is highlighted in red.

    Since there are a lot of changes in this new version, there may be an imperfection or two. Don't hesitate to let me know of any problems you notice and I'll update the program right away.

    Program download: AIM_564.zip
    (This includes the manual dated Mar 16,'07.)

    All the files should be placed together in a new folder.

    After downloading the new program, recalibrate your AIM.
    Click: Calibrate -- > Analyzer.

    Feb 7,'07 -- Version: AIM_562.

    This version can be used with the AIM4170, AIM4160 or the AIM430.

    New Features:

    • RS232 comm ports 1 to 8 can be used.
    • Smith chart shows electrical length of cable.
    • Point Data displays inductance instead of negative capacitance.
    • Averaging value is saved in the scan graph file (.scn).
    • Zplots (by AC6LA) can control the AIM program externally.
    • Links to Utility Files are on the main menu.

    Program download: AIM_562.zip
    (This includes the manual dated Feb 7,'07.)

    All the files should be placed together in a new folder.

    After downloading the new program, recalibrate your AIM.
    Click: Calibrate -- > Analyzer.

    Dec 3, '06 -- Version: AIM_560D.

    This version can be used with the AIM4170, AIM4160 or the AIM430.

    New Features:

    • Option to scan full width of graph or between limits.
    • While recycling in the Point Data mode, the test freq can be incremented/decremented with the mouse.
    • A new method of refering data to the antenna" can be selected for easier set-up.

    Program download: AIM_560D.zip
    (This includes the manual dated Nov 29, '06.)

    All the files should be placed together in a new folder.

    After downloading the new program, recalibrate your AIM.
    Click: Calibrate -- > Analyzer.

    Nov 22, '06 -- Version: AIM_560A.

    This version can be used with the AIM4170, AIM4160 or the AIM430.

    This version features a new method of setting the horizontal frequency scale for the plot which improves the resolution of the graph and the visual appearance.

    Program download: AIM_560A.zip
    (This includes the manual dated Nov 17, '06.)

    All the files should be placed together in a new folder.

    After downloading the new program, recalibrate your AIM.
    Click: Calibrate -- > Analyzer.

    Nov 17, '06 -- Version: AIM_551E.

    This version can be used with the AIM4170, AIM4160 or the AIM430.

    Some of the newest features are:

    • Maximum frequency for the AIM4170 has been increased to 180MHz.
    • Max number of data points up to 1000 can be specified in the config file.
    • Changed format of "Save Graph" data so it doesn't depend on cal data.
    • Reading averaging options: 2,4,8,12,16
    • 1/4 Wave tuning stub adjustment routine in "Functions" menu.
    • Improved calibration in the VHF range.

      Program download: AIM_551E.zip
      (This includes the manual dated Nov 17, '06.)

      All the files should be placed together in a new folder.

      After downloading the new program, recalibrate your AIM.
      Click: Calibrate -- > Analyzer.

    Nov 14, '06 -- Version: AIM_551C.

    This version can be used with the AIM4170, AIM4160 or the AIM430.

    Some of the new features are:

    • Max number of data points up to 1000 can be specified in config file .
    • Changed format of "Save Graph" data so it doesn't depend on cal data.
    • Reading averaging options: 2,4,8,12,16
    • 1/4 Wave tuning stub adjustment routine in "Functions" menu.
    • Improved calibration in the VHF range.

      Program download: AIM_551C.zip
      (This includes the manual dated 110306.)

      All the files should be placed together in a new folder.

      After downloading the new program, recalibrate your AIM.
      Click: Calibrate -- > Analyzer.

      The manual can be downloaded by itself:
      Operator's manual: AIM 430/4160/4170 Manual.
      (Updated Feb 7,'07)