Version One, 146 to 180 MHz

By Ed Lawrence, WA5SWD

ed_bio.jpg (8533 bytes)intro_t.gif (1001 bytes)o read the PDF, you must have Adobe Acrobat Reader 6.0+ installed to download and read the article. If you don't have Acrobat Reader 6.0+ installed, it's available free for download at

Due to the complexity of this article, we have chose to present it in PDF form. Although the loading is a little slower (overall), some of the many advantages of the PDF format is it contains all of the article's intended formatting allowing proper printing of the article as seen on the screen. Further, it has the fonts embedded into the article, especially important when using a character set that may not be on the reader's computer, such as the Greek symbols used for equations. So, the reader can save and print the PDF article totally intact exactly as it was originally intended.

Other important features are, with Acrobat Reader, the reader can magnify (zoom in or out) the article to many different levels so that those superscripts or subscripts can be seen with total clarity. And if the reader wants to, the article can be rotated making it easy to view diagrams from different angles!

For those who have slower Internet connections, or prefer, we have also provided a copy of the PDF article  in a compressed ZIP file. The file is much smaller and will take less time to download. Also, you will be viewing the article from your hard disk and navigation of the article will be faster than over the Internet. Further, for those who choose to load the PDF online, you may also save it to hard disk and view offline as well. To unzip the ZIP file, you need a program like WinZip or comparable available for free trial download at:

~ Download Article (PDF 163kb) ~

Version One, 146 to 180 MHz


Having problems? Check the PDF FAQ for some help.

~ Thanks and enjoy! ~

Remember, for PDF you must have Acrobat Reader 6.0+ installed - Earlier versions will not view properly! To check for the version, launch Acrobat Reader, open "Help" and then look at "About" to see your version.