First, you need to learn how to make a coverage map in Radio Mobile. I won't try to show how to build coverage maps, these guys do a really good job:
http://www.pizon.org/radio-mobile-tutorial/rf-coverage-plot.html http://pe1mew.nl/radiomobile/ After you've figured out how to do the map and become familiar with radio mobile, do the following: Create a map with your AP location as the center point. Make the map size as small as you need based on what your realistic distance will be with your ap. Turn the map gray scale (edit, force gray scale) Then, run either a visual coverage or a (more accurate) single polar radio coverage map. Set the color to solid, not rainbow, no contour line. File, save picture as... Save it as a .png file. Open the file in Paint.net (http://getpaint.net) Use the magic want (shortcut key "S") SHIFT-click on your colored coverage area to select it. Hit CTRL-I to inverse select (select everything BUT the coverage) Hit DELete. This will erase everything BUT the coverage area. Hit F4 to change the opacity. I usually like something around 120 or so. This makes the image semi-transparent. Save the file and exit paint.net Go back to the folder where you saved the .png file. You will find a .kml file with the same name. Double click that to open google earth. You will now see a semi-transparent coverage map over the top of the "earth." Now, in Google Earth, right click on the file name under "Temporary Places." You may want to save it now to My Places. After right-clicking it, do a "Save place as". Save the file as a .kmz file. Post that file on your web server. Go to Google maps on the web http://maps.google.com/ In the "find" box, type the URL where you saved the .kmz file. For example, http://www.infowest.com/earth/1.kmz You will now see an overlay in google maps for your area. You can make a simple page for your employees with links to the various maps this way. I like to look at them with the Terrain option turned on. You can also embed a map on a different web page using the "link" link in Google Maps. See http://www.infowest.com/Residential/Wireless/maps/New-harmony-kanaraville/ for an example. There's more you can do with the Google earth plugin ( http://code.google.com/apis/earth/ ) for browsers as well, but it's much more complex. Have fun, hope this is a useful starting place. -- Randy Cosby Vice President InfoWest, Inc office: 435-773-6071 <http://www.snapanumber.com/> -------------------------------------------------------------------------------- WISPA Wants You! Join today! http://signup.wispa.org/ -------------------------------------------------------------------------------- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
