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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.

« Telecom History after 1984 | | The Tipping Point for VOIP? »

January 23, 2005

Posted by Tom Farley & Mark van der Hoek at 03:29 PM

Electromagnetic Spectrum

I've been sick all weekend but I have been contemplating how better to explain the electromagnetic spectrum (external link) was I thought at first one could compare it to a rainbow, with the colors representing bands of frequencies. But that gets too confusing, since radio waves aren't visible, and thus without color. Why suggest something in the visible light band to represent something invisible? And then I thought of different laser light colors used in fiber optics. There are red lights and green and so on. When I investigated further, however, it turns out visible light component of a laser isn't really related to the frequencies it carries. Most often, in the case of fiber optic transmission, the infrared region is used. These are wavelengths longer than visible light, above that band, typically around 850, 1300 and 1550 nanometers. Hmm. I blame my confusion on my fever.

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