VUCC is the VHF/UHF Century Club Award offered by the ARRL.

The "VUCC" program creates a map of worked VUCC grid locators from the VUCC Band Listing created by DX4WIN. The program shows checked (submitted), confirmed and worked locators, either in different colors or different fonts. Click this link to see an example of the output. See the color key below for the meaning of each color.


Version 3.0 of the VUCC program was released on September 2016. It is designed for Windows Vista and later, but may run on Windows XP. Go to the Version History to download the installation program.


The VUCC program is supplied "AS IS" without any warranties.

The author assumes no responsibility or liability for the use of the software, conveys no license or title under any patent, copyright, or mask work right to the product.

The author reserves the right to make changes to the software without notification. The author also makes no representation or warranty that such application will be suitable for the specified use without further testing or modification.


IMPORTANT: If you try to run the program and you see either of these two error messages pop up:

MSVCP140.dll is missing


VCRUNTIME140.dll is missing

then you must install the Microsoft Visual C++ Redistributable for Visual Studio 2015. When prompted, download and install vc_redist.x86.exe (not vc_redist.x64.exe).

Creating the VUCC Data

The program requires a VUCC listing from DX4WIN as input. To generate this VUCC listing:

In DX4WIN 7 and earlier:

In DX4WIN 8 and later:

When the listing window comes up, right-click with the mouse and choose "Write to File". Give the file a name (no spaces) with a .csv extension. Save the file in the same directory as the VUCC program.

Using the Program

After starting the program from the desktop icon, click on the Input button and navigate to the folder where you saved the VUCC listing from DX4WIN. Double-click on that filename to close the dialog box.

After selecting the input file, the VUCC program will automatically set the output file to the same as in the input file, but with an .html extension. To change the output file name, click on the Output button and type the new name into the "File name" field. Then click on OK to close the dialog box.

NOTE: If you specify a different directory, the grid fields may not be displayed in the output.

Select the band of interest by clicking on the down-arrow next to Band. Then type in the "field" for the lower left-hand corner of the output. For USA stations "CL" will give you all of the USA and Mexico when printed in landscape mode. "CM" will give you all of the USA and most of Canada when printed in landscape mode.

Next, choose the Print Format. There are three options:

Because each grid square is 2° x 1°, landscape output generally works better than portrait. Try 17"x11" only if you have access to a printer which can handle that size.

Check the Color box if you want colored output (default) and/or the Bold box if you want bold colors (doesn't apply to non-color).

If you want submitted VUCC credits to be printed using the same color as checked VUCC credits, check the "S=*" box. Otherwise, submitted VUCC credits will appear in the same color as confirmed VUCC grids.

Here is the color key for the output:

Note that in non-color mode, confirmed, submitted and checked VUCC credits will all be the same color (bold black).

Finally, click on the Generate button to create the output. Then click on the View button to see it. Windows will open the output using your default web browser. At this point, you can click the Done button to exit the VUCC program. Your web browser will remain open.

Clicking the Help button will being up this web page.


To print using Mozilla Firefox:

To print using Internet Explorer (example is for IE7):

Known Problems:

The map won't wrap properly at the International Date Line. I probably won't fix this.

Other Resources:

The ARRL has some links to help you determine your grid square.

ICOM America has a grid square map for USA on the downloads section of their web site.

Version History

Ver 3.0 - September 2016
Converted to true Windows (GUI) program
Checked (Submitted) grids are shown in blue (color only)
Added bold font selection (default is bold)
HTML file dialog had wrong "Save as type"
Found and fixed another initialized variable

Ver 2.1 - 22 June 2010
Fixed uninitialized variable which caused incorrect output
Title was missing band/frequency if "-f" frequency mode was used
Ver 2.0 - 21 June 2010
Added support for DX4WIN 8
Recognizes submitted and checked status as confirmed
Shows field name in background of 10x10 square (field)
Unworked grids are shown in light gray
Added -b option to specify band
Added -f option to specify frequency
Added -l option to output in landscape mode
Added -17 option to output for 11x17 sheet
Added -c option to output in color

Ver 1.4 - 3 June 2006
Initial release.