ARLA/CLUSTER: RSGB confirma acesso dos radioamadores britânicos ao segmento de 146 MHz com algumas restrições

[João Costa > CT1FBF]

New UK Amateur Radio 146 MHz allocation

The RSGB VHF Manager *John Regnault G4SWX* gave a key presentation to the
RSGB Convention on October 12 about the new amateur radio allocation at 146
MHz

John said the future use of this band is very much in our hands. If we
merely use it for more-of-the-same (conventional modulation and uses) then
future use will not be viewed very favourably.

He suggested we should use the band imaginatively, with digital modes
and/or new services that would not sit easily within the existing band.
Digital ATV with 500 kHz bandwidth, Digital Voice, Spread Spectrum, Data
Services along with things not yet widely thought of are the type of
activity that is desired.

Developers of wideband modes may face challenges in ensuring their
emissions are contained within the new band. Some wideband modes currently
used on 1240 MHz have sidebands just 30 dB down that extend over a wide
range, this would not be acceptable on 146 MHz.

Bandwidth tailoring will be imperative to ensure no RF extends into the
weak signal satellite segment at 145.8-146.0 MHz (the Lunar 4M JT65B beacon
uses 145.980 MHz). Narrow band users on 147 MHz must also be protected from
any increase in the noise floor.

John asked that those trying new things on the band should report the work
they do even if the experiment is a failure. His contact email address is
vhf.manager<at>rsgb.org.uk

It may even be that successful exploitation of the new band could lead to
further release to amateurs of much needed VHF spectrum!

Download the 146 MHz PowerPoint Slides from
http://tinyurl.com/146MHz-Allocation

The new allocation has both Geographical and ERP restrictions.
The Ofcom statement on the allocation can be seen at
http://stakeholders.ofcom.org.uk/binaries/consultations/
vhf-143-169mhz/statement/VHF_Release_statement.pdf
<http://stakeholders.ofcom.org.uk/binaries/consultations/vhf-143-169mhz/statement/VHF_Release_statement.pdf>

At the end of October Full licence holders will be able to obtain an NoV
for 146 MHz operation from the RSGB online NoV page at
http://rsgb.org/main/operating/licensing-novs-visitors/
online-nov-application/
<http://rsgb.org/main/operating/licensing-novs-visitors/online-nov-application/>
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