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Private Line covers what has occurred, is occurring, and will ocurr in telecommunications. Since communication technology constantly changes, you can expect new content posted regularly.

Consider this site an authoritative resource. Its moderators have successful careers in the telecommunications industry. Utilize the content and send comments. As a site about communicating, conversation is encouraged.

Writers

Thomas Farely

Tom has produced privateline.com since 1995. He is now a freelance technology writer who contributes regularly to the site.

His knowledge of telecommunications has served, most notably, the American Heritage Invention and Technology Magazine and The History Channel.
His interview on Alexander Graham Bell will air on the History Channel the end of 2006.

Ken Schmidt

Ken is a licensed attorney who has worked in the tower industry for seven years. He has managed the development of broadcast towers nationwide and developed and built cell towers.

He has been quoted in newspapers and magazines on issues regarding cell towers and has spoke at industry and non-industry conferences on cell tower related issues.

He is recognized as an expert on cell tower leases and due diligence processes for tower acquisitions.

« Neat Looking Phone Cards | | A Telephone System For A Hundred Bucks? »

May 04, 2001

Posted by Tom Farley & Mark van der Hoek at 12:05 AM

The electromagnetic field and spectrum

I'm working on explaining a few things about the electromagnetic spectrum and field. It's that great, omnipresent energy force that washes over us and through us. Seemingly everything belongs to it since it includes visible light, invisible light, sound, and radio waves. Everything in matter is in fact a wave (internal link) and the electromagnetic spectrum seems to define us and everything around us by frequency. Just as you can separate radio services by frequency, so it is with each color as well. Fascinating stuff. While writing on this I came across a 1964 NASA diagram, showing the earth and the sun at calm and at disturbance with different parts of the elctromagnetic spectrum. You can click here (internal link) or on the graphic below to call up the bigger image. It's 244K but I think it is rather neat:

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