Thanks. I found that quite illuminating. How can the Power companies claim
to be permitted to operate under part 15 rules [ antennas and feeder
etc not to exceed 15 metres ] when their antenna systems are hundreds of miles
long ?
----- Original Message -----
Sent: Thursday, December 30, 2004 6:24
AM
Subject: Re: LF: Needless restrictions re
: Trans Atlantic
In a message dated 12/29/2004 3:32:00 AM Eastern Standard Time,
[email protected]
writes:
From what you say (which I did not previously know) a LF
amateur band has been specifically denied in USA . I would be interested to
know what reasons were given.....just tell me if there is a website
We reported quite a bit at lwca.org on the attempt to gain US 2200m
privileges. The ARRL had additionally proposed 160-190kHz in their
petition, but in 2002, the FCC turned down the latter request. It
was claimed this 30kHz segment would be too unwieldy from a spectrum
management standpoint and might place the power grid in too much
jeopardy.
Still, all indications in 2002 were that the relatively
tiny 2.1kHz slice at 2200m would fly through. After another year
dragged by, the power industry persuaded the Commission that a huge guard
band around 137kHz would be necessary because of the extremely lax tolerances
in the industry's PLC gear (thus, my reference to our Fourth World power
grid) and that it would cost them tens of millions to upgrade their
stuff.
ARRL may have some of their stories archived. We have the FCC
Report and Order from 2003, with a summary of all their considerations on the
matter at that time. It's at:
I hope that helps.
John
