TELECOM Digest OnLine - Sorted: Re: NewSci: Net Noise Threat to Emergency Radio

Re: NewSci: Net Noise Threat to Emergency Radio

Tony P. (
Tue, 25 Jan 2005 19:14:30 -0500

In article <>,

> To quote the article:

>> Corridor Systems of Santa Rosa, California, thinks it has hit on a way
>> to set up an interference-free power-line internet service. It plans
>> to use overhead power lines to carry data at frequencies between 800
>> megahertz and 10 gigahertz, way above the amateur radio and
>> conventional power-line communications band and, which it will send in
>> an outer power conductor.

> Isn't 800 MHz the preferred frequency band for both the bulk of
> cellular telephones and public safety radio? And if you travel
> outside of North America, isn't 900 MHz the preferred band for
> cellular traffic? When you start getting into the Giggle Hertz
> ranges, aren't you playing with things such as 802.11, 802.15, PCS and
> a whole bunch of other mature services?

> Just some thoughts.

Some public service exists in the band encompassing 800MHz to 900MHz.
900MHz up is for consumer electronics though when you get near 1.2GHz
you have amateur traffic in there.

802.11 works on 2.4GHz which is the same band that your microwave oven
and many cordless phones exist in.

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