ARLA/CLUSTER: Não há consenso entre a FCC e a ARRL sobre a questão 'Symbol Rate' nas comunicações digitais de amador nos EUA

[João Costa > CT1FBF]

No consensus reached for FCC on 'Symbol Rate' issues

ARRL-initiated efforts for rival parties to reach consensus on some of the
issues they raised in the so-called 'Symbol Rate' proceeding have ended

The ARRL say:

In April, the FCC granted ARRL’s request for a 90-day hold in the
proceeding, FCC Docket WT 16-239, to provide an opportunity for ARRL to
lead an effort to determine whether consensus could be reached on some or
all of the issues that commenters have raised in the FCC’s proceeding. The
FCC already has issued a Notice of Proposed Rulemaking in WT 16-239, which
stemmed from ARRL’s rulemaking petition RM-11708.

Discussions were since widened to include issues raised in another Petition
for Rule Making, RM-11831, filed by Ron Kolarik, K0IDT, that seeks, in the
words of his petition, “to ensure Amateur Radio digital modes remain openly
decodable and available for monitoring� by the FCC and by other third
parties, including other radio amateurs. His petition also aims to limit
Automated Controlled Digital Stations (ACDS) to identified HF sub-bands, to
reduce interference. Last month, ARRL filed an interim report with the FCC
summarizing its efforts to bring all sides to the table, and on June 28,
ARRL requested an additional 60-day pause to pursue promising talks.

Read the ARRL story in full with links at
http://www.arrl.org/news/no-consensus-reached-for-fcc-on-symbol-rate-issues

FCC agrees to 90-day pause in consideration of WT Docket 16-239
http://www.southgatearc.org/news/2019/april/fcc-agrees-to-90-day-pause-in-consideration-of-wt-docket-16-239.htm


Brief History of Symbol Rate restriction by M5AKA:

On March 17, 1980 the FCC introduced a Symbol Rate restriction on amateur
digital transmissions. In the earlier public consultations on new rules for
digital transmissions 80% of all respondents had expressed the opinion that
the FCC should impose few if any restrictions, unfortunately that didn't
happen.

There was a view that the bandwidth of ASCII signals should be limited but
in that era the ARRL was strongly opposed to the concept of Regulation by
Bandwidth and had successfully fought a bitter battle over several years
against the FCC's Docket 20777 that had proposed bandwidth regulation.
Restricting the Symbol Rate was seen as a way of restricting the bandwidth
with having to specify an explicit bandwidth restriction, however, this
regulation was to cripple future development of amateur digital modes.

At the ARRL Board of Directors meeting of July 19-20, 2002, the ARRL policy
shifted and it was voted that *"at the next practical opportunity the ARRL
shall petition the FCC to revise Part 97 to regulate subbands by signal
bandwidth instead of by mode."*

Since 2002 various petitions have been made to the FCC to persuade them to
spend resources on introducing Regulation by Bandwidth for the Amateur
Services and to scrap the archaic Symbol Rate restriction, all so far
without success.

Regulatory change in the USA (and other countries) takes a very long time.
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