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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.

« Cell tower and cell site newsletter | | The antecedents of digital (Part 1) »

October 15, 2004

Posted by Tom Farley & Mark van der Hoek at 04:56 PM

More on the control channel in IS-136

Professor Richard Levine and Mark van der Hoek contribute more valuable information on frequencies and call processing in IS-136.

Q: What are the frequencies for the control channel in IS-136 and EDGE?

A: Mark van der Hoek (internal link): "The control channels for IS-136 would be the same as for AMPS. In theory they could be any set of 21 channels, but in practice they are 334-354 for the B side carriers, and 333 to 313 for the A side. EDGE should follow the GSM control channels, although GSM is not my strong point. Some IS-136 handsets are dual mode compatible and so would seek only digital control channels." (continues here -->, internal link)

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