[GreenKeys] Frequency Fight
Don Robert House
drhouse at mchsi.com
Wed Sep 29 21:27:26 EDT 2004
Proposed rules pit 'hams' vs. broadband Net users
Interference threatens hobby
By Paul Davidson
USA TODAY
Regulators are set to pass new rules to limit radio interference by
emerging services that offer broadband over electric power lines, but
the curbs are not likely to appease ham radio operators.
The "hams" say widespread rollout of power-line broadband could be a
virtual death knell for their beloved hobby because the service often
emits radio waves on the same channels they use. The problem is that
electric wires are not shielded and data, which travel in energy
waves, can easily disrupt other services.
"Disastrous," says Allen Pitts of the American Radio Relay League.
There are about 700,000 hams in the USA. FCC and utility officials
say their concerns are overstated.
A recommendation made by the staff of the Federal Communications
Commission would afford the greatest protections to the radio
networks of the Coast Guard and trans-oceanic flights, FCC officials
say. Electric companies offering high-speed Internet service would
have to refrain from using any frequencies reserved for those vital
communications services.
Ham radio hobbyists sought the same safeguards, saying they should
not have to wrangle with utilities every time they hear static.
Instead, the FCC plans to require utilities simply to ensure they are
equipped to stop interference by blocking transmissions on certain
channels, cutting power or remotely turning off gear. "We tried to
come up with responsible rules to ensure (power-line broadband) can
get out there but to protect licensed radio operators," says FCC
official Bruce Franca.
Banning power companies from ham-radio bands outright could reduce
the download speeds of the high-speed Internet service or limit the
number of customers who could be served, Franca says.
While the staff proposal could be revised by the five FCC
commissioners when they vote on it next month, it appears to have
their support. FCC Chairman Michael Powell has vigorously backed
power-line broadband as an alternative to DSL and cable-modem.
The service is expected to bring broadband to rural areas that can't
get it today and offer better prices or faster speeds in larger
cities. While it's sold only in Cincinnati and Manassas, Va., about
40 trials have been done nationwide, and utility officials expect
eventual large-scale deployment.
Hams have flooded the FCC with complaints about some of the trials.
In Cedar Rapids, Iowa, Jim Spencer, who lives near a medium-voltage
power line, heard a shrill, alien-like tone "all the time" when he
tried to contact overseas counterparts. The trial ended in June,
partly due to the complaints.
In Raleigh, N.C., Progress Energy cut power on some channels, but
car-based hams still cite interference when trying to pick up weak
signals, such as those overseas.
Current rules bar unlicensed radio emitters, such as utilities, from
disrupting licensed ones, such as hams. But the meaning of "harmful"
interference is debated. For example, Franca says, car-based hams can
move away from static.
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