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Designers of fiber networks for electric utilities and communities.

News and comments on community broadband networks, the communities deploying them and the technologies that support them. Published by Denise Frey and Al Bonnyman.

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Friday, April 09, 2004


Cell phone jammers also jam power utility wireless systems

The New York Times has an excellent article on the ethical and technical issues associated with cell phone jammers.

My employer, Fiber Planners, has at least one power utility client that's reported interference to its' internal wireless communications system. Their system operates on other licensed frequencies, indicating that at least some of the jammers are not very discriminating. Interference with licensed power utility radio systems is a violation of federal law.

This client spent several days investigating before they isolated the problem. Since the first occurrence, they've had a second, unrelated incident.

One of their jammer users was a strip joint that didn't want picture phone users sending pictures of dancers. The other was a church that didn't want interruptions.

(Link from


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