[OKDXA] FCC Rules Action
Jeff Martin
jeffk5we at gmail.com
Tue Nov 14 07:40:42 EST 2023
ARRL Hails FCC Action to Remove Symbol Rate Restrictions
11/13/2023
ARRL The National Association for Amateur Radio® reports that earlier
today, the FCC Commissioners unanimously voted to amend the Amateur
Radio Service rules to replace the baud rate limit on the Amateur HF
bands with a 2.8 kHz bandwidth limit to permit greater flexibility in
data communications.
“The Federal Communications Commission today adopted new rules to
incentivize innovation and experimentation in the amateur radio bands by
removing outdated restrictions and providing licensees with the
flexibility to use modern digital emissions,” announced FCC.
“Specifically, we remove limitations on the symbol rate (also known as
baud rate) -- the rate at which the carrier waveform amplitude,
frequency, and/or phase is varied to transmit information -- applicable
to data emissions in certain amateur bands,” concluded the FCC Report
and Order and Further Notice of Proposed Rulemaking, adopted November
13, 2023. “The amateur radio community can play a vital role in
emergency response communications, but is often unnecessarily hindered
by the baud rate limitations in the rules.”
Consistent with ARRL’s request, the amended rules will replace the
current HF restrictions with a 2.8 kHz bandwidth limit. “We agree with
ARRL that a 2.8 kilohertz bandwidth limitation will allow for additional
emissions currently prohibited under the baud rate limitations while
providing sufficient protections in the shared RTTY/data subbands,”
concluded the FCC Report and Order.
ARRL President Rick Roderick, K5UR, hailed the FCC’s action to remove
the symbol rate restrictions. Roderick stated that “this action will
measurably facilitate the public service communications that amateurs
step up to provide, especially at times of natural disasters and other
emergencies such as during the hurricane season. Digital technology
continues to evolve, and removing the outmoded data restrictions
restores the incentive for radio amateurs to continue to experiment and
develop more spectrum-efficient protocols and methods while the 2.8 kHz
bandwidth limit will help protect the shared nature of our bands. We
thank Congresswoman [Debbie] Lesko (AZ-08) for her efforts on behalf of
all Amateurs to get these restrictions removed.”
In a Further Notice of Proposed Rulemaking (FNPRM), the FCC proposes to
eliminate similar restrictions where they apply in other bands. “We
propose to remove the baud rate limitation in the 2200 meter band and
630 meter band … and in the very high frequency (VHF) bands and the
ultra-high frequency (UHF) bands. Additionally, we seek comment on the
appropriate bandwidth limitation for the 2200 meter band, the 630 meter
band, and the VHF/UHF bands.” ARRL has previously expressed its support
for eliminating the symbol rate limits in favor of bandwidth limits
where they apply on the VHF and UHF bands but suggested that the
bandwidth limits themselves be reviewed in light of today’s technology
and tomorrow’s possibilities. Similarly, when eliminating the baud
limits on the 2200 and 630-meter bands, consideration should be given to
what, if any, bandwidth limits are appropriate.
The FCC will announce a period for public comment on the additional
proposed changes based upon publication of the FNPRM in the Federal
Register.
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