ARLA/CLUSTER: Perigos importantes para as bandas de amador dos 144 e 1240 MHz em 2023

[João Costa > CT1FBF]

WRC-23 Agenda Items may impact 144 MHz and 1240 MHz bands

IARU Region 1 notes that there are two proposals under discussion in Europe
as possible future Agenda Items at WRC 2023, which potentially could impact
important amateur radio frequencies

IARU Region 1 says:

The following sets out the current IARU position on these proposals.

A proposal from France to consider the band 144-146 MHz as a primary
allocation to the Aeronautical Mobile service, as part of a broader
consideration of the spectrum allocated to that service.

The band 144-146 MHz is allocated globally to the amateur and amateur
satellite services on a primary basis. This is one of the few primary
allocations to the amateur service above 29.7 MHz and as such is an
important and widely used part of the amateur spectrum with a vast
installed base of users and operational satellite stations.

IARU views with grave concern any proposal to include this band in the
proposed study. It will be representing this view energetically in Regional
Telecommunications Organisations and in ITU to seek to obtain assurances
that the spectrum will remain a primary allocation for the amateur services.

A proposal to study the amateur allocation in the 1240-1300 MHz (“23cm�)
band following reported cases of interference to the Galileo navigation
system.

IARU is aware of a handful of cases where interference to the Galileo E6
signal has been reported. In all cases these have been resolved by local
action with the full cooperation of the amateur stations concerned.

IARU does not want the amateur service to affect the operation of the
Galileo system in any way. Joint studies have been carried out to assess
the true vulnerability of the system and, based on these, IARU regards the
proposal to initiate an Agenda item for WRC-23 as premature.

The IARU position is that proper technical assessment of the issues
involved should be made in the relevant CEPT study group. Proper account
needs to be taken of the operational characteristics of the amateur service
in order to develop sensible and proportionate measures that will
facilitate the continued utility of the band for amateur experimentation
whilst respecting the primary status of the GNSS service.

IARU is ready to cooperate fully in any studies and shares the objective of
reaching a secure and permanent solution to the issues of sharing in this
band.

IARU asks its Member Societies to draw this information to the attention of
their members, and to refrain at this time from making speculative public
comments about the situation until further progress has been made in
regulatory discussions. IARU is also ready to discuss this issue with other
societies not in IARU membership.

Source IARU Region 1
https://www.iaru-r1.org/index.php/88-news/1864-wrc-23-agenda-items

1240-1300 MHz band discussed by CEPT WGFM and CPG/PTA
https://amsat-uk.org/2019/05/31/1240-1300-mhz-band-discussed-by-cept-wgfm-and-cpg-pta/
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