ARLA/CLUSTER: FCC convida comentários até 20 de Março, sobre a petição da ARRL para a nova alocação na banda de 5 MHz nos EUA

João Costa > CT1FBF ct1fbf gmail.com
Quarta-Feira, 22 de Fevereiro de 2017 - 13:39:21 WET


FCC invites comments on ARRL petition to allocate new 5 MHz band

The FCC has invited comments on the ARRL's January 12 Petition for Rule
Making to allocate a new, contiguous secondary band at 5 MHz to the Amateur
Service.

The League also asked the Commission to keep four of the current five
60-meter channels - one would be within the new band - as well as the
current operating rules, including the 100 W PEP effective radiated power
(ERP) limit. The federal government is the primary user of the 5 MHz
spectrum.

The FCC has designated the League's Petition as RM-11785 and put it on
public notice.

Comments are due Monday, March 20. ARRL plans to file comments in support
of its petition.

The proposed ARRL action would implement a portion of the Final Acts of
World Radiocommunication Conference 2015 (WRC-15) that provided for a
secondary international allocation of 5,351.5 to 5,366.5 kHz to the Amateur
Service; that band includes 5,358.5 KHz, one of the existing 5 MHz channels
in the US. The FCC has not yet acted to implement other portions of the
WRC-15 Final Acts.

"Such implementation will allow radio amateurs engaged in emergency and
disaster relief communications, and especially those between the United
States and the Caribbean basin, to more reliably, more flexibly and more
capably conduct those communications [and preparedness exercises], before
the next hurricane season in the summer of 2017," ARRL said in its petition.

The League said that 14 years of Amateur Radio experience using the five
discrete 5-MHz channels have shown that hams can get along well with
primary users at 5 MHz, while complying with the regulations established
for their use. "Neither ARRL, nor, apparently, NTIA is aware of a single
reported instance of interference to a federal user by a radio amateur
operating at 5 MHz to date," ARRL said in its petition. NTIA - the National
Telecommunications and Information Administration, which regulates federal
spectrum - initially proposed the five channels for Amateur Radio use. In
recent years, Amateur Radio has cooperated with federal users such as FEMA
in conducting communication interoperability exercises.

The League said in its petition that while the Amateur Radio community is
grateful to the FCC and NTIA for providing some access to the 5-MHz band,
"the five channels are, simply stated, completely inadequate to accommodate
the emergency preparedness needs of the Amateur Service in this HF
frequency range," ARRL said. Access even to the tiny 15-kHz wide band
adopted at WRC-15 would "radically improve the current, very limited
capacity of the Amateur Service in the United States to address emergencies
and disaster relief," ARRL said.

The WRC-15 Final Acts stipulated a power limit of 15 W effective isotropic
radiated power (EIRP), which the League said "completely defeats the entire
premise for the allocation in the first place."

ARRL said the FCC should permit a power level of 100 W PEP ERP, assuming
use of a 0 dBd gain antenna, in the contiguous 60-meter band. "To impose
the power limit adopted at WRC-15 for the contiguous band would render the
band unsuitable for emergency and public service communications," the
League said.

The ITU Radio Regulations permit assignments at variance with the
International Table of Allocations, provided a non-interference condition
is attached.

Interested parties may comment on RM-11785 using the FCC's Electronic
Comment Filing System (ECFS) at, https://www.fcc.gov/ecfs/ .
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