Director of Radiocommunication
Bureau (BR)
Geneva, 31 July 2025
Our Ref.: 01RB(DIR)O-2025-002465
Contact: Mario Maniewicz, Director, BR
EST, FIN, LVA, LTU
Telephone: +41 22 730 5800
Telefax: +41 22 730 5785
E-mail:
[email protected]
Subject: Submission co-signed by the Administrations of Estonia (Republic of), Finland, Latvia
(Republic of) and Lithuania (Republic of) concerning harmful interference to receivers in
the radionavigation-satellite service and mobile services
Y/Ref. Letter contained in email dated 23 June 2025
Dear Madam, Dear Sir,
I thank you for your above-mentioned letter and wish to inform you that the Radio Regulations Board (RRB),
at its 99th meeting (14 – 18 July 2025), considered your submission as contained in Document RRB25-2/19
concerning harmful interference to receivers in the radionavigation-satellite and mobile services. The Board
noted for information Document RRB25-2/DELAYED/1, received from the Administration of the Russian
Federation, which had arrived after the deadline for submissions, as providing additional information on this
matter.
The Board took the following decisions and instructed the Executive Secretary of the RRB to inform you as
follows:
“The Board considered in detail Document RRB25-2/19, in which the Administrations of Estonia, Finland,
Latvia and Lithuania reported on harmful interference to receivers in the radionavigation-satellite service
(RNSS) and mobile service (MS). The Board also noted Document RRB25-2/DELAYED/1, from the
Administration of the Russian Federation, for information. The Board noted the following points:
• Cases of harmful interference to RNSS receivers affecting safety services, civil aviation and maritime
services had persisted and expanded to affect larger territories.
• The administrations of Finland and Lithuania had reported new cases of harmful interference
affecting IMT stations.
• Some administrations had not received any response to the interference reports from the
Administration of the Russian Federation, while others had only received acknowledgements of receipt under
RR No. 15.35 without any further action being taken.
• Harmful interference had been deliberately caused to RNSS receivers in the region by the Russian
Federation as a means of protecting its infrastructure.
International Telecommunication Union • Place des Nations • CH-1211 Geneva 20 • Switzerland
Tel: +41 22 730 5111 • Fax: +41 22 733 7256 • E-mail:
[email protected] • www.itu.int •
2
The Board expressed its grave concern at how the situation was evolving and emphasized that a military
conflict between two nations could not justify the non-respect by those nations of their obligations under
the ITU instruments with respect to other nations and put at risk critical infrastructures and lives in those
other nations not party to the conflict.
The Board strongly urged the Administration of the Russian Federation to:
• comply with all the relevant provisions of Articles 45 and 47 of the ITU Constitution, RR Nos. 4.10,
15.1, 15.28 and 15.37, and resolves to urge administrations of Resolution 676 (WRC-23), in particular when
harmful interference adversely affected safety services;
• take the necessary actions to respond to communications from administrations reporting harmful
interference to the RNSS and immediately cease the harmful interference that originated from its territory;
• investigate the cases of interference to IMT stations reported by the Administrations of Finland and
Lithuania, and take appropriate action, in coordination with those administrations, to resolve them.
The Board reiterated the decision made at its 98th meeting and instructed the Bureau to:
• urge the Administration of the Russian Federation to take all possible actions to immediately cease
any source of harmful interference to safety services in the RNSS;
• support the efforts of the administrations concerned to resolve the cases of harmful interference,
in particular by convening bilateral or multilateral meetings between the Administration of the Russian
Federation, on the one hand, and the Administrations of Estonia, Finland, Latvia and Lithuania, on the other,
to resolve the cases of harmful interference to the RNSS reported by administrations and prevent their
reoccurrence;
• report on progress in the matter to the 100th Board meeting.“
The summary of decisions approved at the conclusion of the meeting (Document RRB25-2/20) is now
available on the Board’s pages of the ITU-R website.
Yours faithfully,
Mario Maniewicz
Teema: FW: RRB99 Decisions - A.I 78.1
From: Gozal, Karine <
[email protected] <mailto:
[email protected]> >
Sent: Thursday, July 31, 2025 9:14 AM
To: TTJA Info <
[email protected] <mailto:
[email protected]> >
Subject: RRB99 Decisions - A.I 78.1
Dear Madam, Dear Sir,
Following the RRB99th meeting, please find attached a communication from the Director, Radiocommunication Bureau.
Best Regards,
Karine GOZAL
BR/SSD
International Telecommunication Union
Tel : +41 22 730 5030 | Fax : +41 22 730 5785
www.itu.int <http://www.itu.int/>
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