[Lowfer] Rulemaking Ruminations - THREE: Don't Fence Us In
JD
listread at lwca.org
Sun May 31 17:44:22 EDT 2015
* THREE: At 172, the FCC observes: "If we were to adopt our proposal to
permit amateur operations only when separated by a specified distance from
transmission lines, when a new transmission line is built close by an
amateur station, the station either would have to relocate farther away from
the transmission line or cease operating." Scary, huh. But they go on to
ask: "How should our rules address the potential for new transmission lines
to be constructed closer than the specified distance to pre-existing amateur
stations? We do not want to inhibit the ability of either PLC systems or
amateur services to grow and expand without imposing unnecessary burdens on
either. Is it possible for utilities to refrain from geographically
expanding their PLC operations within the relatively small portion of the
9-490 kHz band that we are making available for amateur operations, and is
this something utilities would do on their own accord, given the Part 15
status of PLC systems? Should our rules explicitly prohibit utilities from
deploying new PLC systems in these bands?"
My short answer: yes, please. Look back at par. 26, in the WRC-07 R&O
section where the Commission explains their basis for adding the 2200 m
allocation: "We intend to structure these service rules to promote shared
use of the band among amateurs and PLC systems. Amateurs will not be able to
use their allocation status to force unlicensed PLC operations out of the
band, and utilities will have no cause to abandon or incur large costs to
modify existing PLC systems." Read part of that again: "Amateurs will not
be able to use their allocation status to force unlicensed PLC operations
out of the band." That's the reality of the matter, but I think it also
works in our favor.
So far as I know, this is unique in the history of radio regulation. I
can't think of another example where an incumbent, but unlicensed and
unallocated, user of radio spectrum has been afforded such protection from
any allocated and licensed service. However, most of us who commented in
the 2013 proceeding DID AGREE with the Commission that PLC technology has
been a special case for a long time, and most recognized that acceptance of
its existence would be the only way to move the discussion off dead center
and get to the point where we are now.
But I maintain this coin has two sides. If we in a licensed, allocated
service accept that we will not displace existing PLCs now or in the future,
then it is ONLY FAIR that the unlicensed, unallocated users should not be
able to displace the licensed ones, either...now or in the future. Letting
someone use a resource only until you decide you want it for
yourself...that's not sharing.
The only way I can see to guarantee such protection to the licensed users is
to modify Part 15 to impose a formal freeze on any changes in power,
transmission mode, route of existing PLC systems, or installation of new
ones, within a reasonable guard band encompassing and immediately adjacent
to the new amateur allocations. That achieves the stated goal of not
displacing existing systems or burdening the utlities by forcing any
changes, while only removing two small slices of spectrum for consideration
for future installations. That seems an entirely reasonable compromise to
me.
Your comments welcome--and necessary!
73
John D
More information about the Lowfer
mailing list