Austria has become the latest country to impose restrictions on Amateur Radio operation in the 23 cm band (1240-1300 MHz) to protect to protect ground-based receivers for the Galileo RNSS satellite constellation.
Austria’s national amateur radio society ÖVSV say:
Changes to the legal conditions in the AFU area from 03/13/2023:
Annex 2 of the Amateur Radio Ordinance is omitted and is now regulated in the Frequency Use Ordinance Annex 4.
This results in some changes in the frequency ranges and powers.
For the KW bands 80m, 40m, 20m, 17m, 15m, 12m and 10m, 1KW (High-Power) can now be approved for Class 1 FA after 1 year of trouble-free operation.
- Thus, the power limitation of 7100-7200 kHz (previously only 200W) in the 40m band is eliminated and AFU has primary status.
- 30m band still only max. 200W if power level B or C approved (no change)
- 160m band from 1810-1850 kHz now max. 200W if power level B or C approved and AFU has primary status.
- 160m band from 1850-2000 kHz only max. 100W (now instead of 1950 kHz up to 2000 kHz)
- The 6m band has been extended from 52-54MHz. (Limited until 31.12.2030, for research WRAN)
- from 50-52 MHz now max. 200W if power level B or C approved and AFU has primary status.
- from 52-54MHz only max. 100W
- On the 70cm band now also allowed as already on 2m high-power (up to 1KW), if power level B or C approved (but only EME and MS with Yagis from at least 15dBd gain)
- The 23cm band was kept, but the performance was severely limited
- only 10W allowed (previously max. 200W were allowed)
- Repeaters with more than 16kHz bandwidth must cease operation by December 31, 2024.
- On all higher FM bands (except 10 GHz, since only 40dbW EIRB) now also max. 200W (previously only 100W) allowed.
- on 24GHz AFU has only secondary status
Please note the new conditions.
Amateur Frequencies: https://ris.bka.gv.at/Dokumente/BgblAuth/BGBLA_2023_II_61/Anlagen_0004_CAC10589_910D_4FFE_9A8D_3839DC110654.pdfsig
ÖVSV post: https://www-oevsv-at.translate.goog/oevsv/aktuelles/Neue-Frequenznutzungs-Verordnung-in-Kraft/?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-US&_x_tr_pto=nui
As the WRC-23 approaches so the studies regarding AI9.1b (23cm and RNSS) are working towards conclusions. However the IARU is not content that all the operational aspects of the amateur service usage of the 1240-1300 MHz band are being properly considered to develop an acceptable compromise for all concerned parties.
Having been deeply involved in the regulatory work described below it is the opinion of the IARU that for many national authorities the 23cm band WRC23 agenda item 9.1b topic has a very low priority. Many are taking a “generic” stance stating their support for studies without considering the detail of the work or how it is moving forward. Therefore the IARU requests that Member Societies urgently put this issue on the agenda with their national authorities to discuss the views laid out below.
The IARU view is that the potential for widespread or persistent interference to the radio-navigation satellite service (RNSS) from amateur service transmitters is over-stated. However, recognising the regulatory situation, the IARU and the amateur community are ready to accommodate any technical or operational measures deemed necessary on the amateur services so long as they are proportionate, reasonable and evidence based.
The IARU believes that a careful compromise needs to be found in the outcome of the work and the execution of WRC-23 agenda item 9.1b, that properly takes account of the low likelihood of interference events occurring whilst allowing both the amateur services and the RNSS to develop in the band.
The IARU stresses the opportunity that the higher frequency amateur service bands enable for technical skills development for researching and experiencing radio propagation effects. The 1240 – 1300 MHz band is important for the amateur radio service, being the lowest allocation for radio amateurs on which typical microwave propagation can be experienced. Access to these frequencies is facilitated by commercially available equipment and provides a ‘bridge’ building motivation to become involved in more specialized higher frequency microwave and millimeter wave operations providing the self-training which is at the heart of amateur radio.
Read the paper IARU Perspective on the AI9.1b Progress — September 2022
Source IARU 23cm Band and RNSS Coexistence
The Chair of IARU Region 1 Spectrum and Regulatory Liaison Committee, Barry Lewis G4SJH, reports on the response to the EU WRC-23 consultation and the CEPT RNSS/23cm band study.
On the IARU-R1 site he writes:
In a collaboration between the IARU-R1 Spectrum and Regulatory Liaison Committee (SRLC) and the Political Relations Committee (PRC) an IARU Region 1 response has been provided to the European Union consultation on the WRC23 agenda items.
All the agenda items of interest to the IARU are covered with particular attention paid to the AI9.1b issue on the GALILEO / 23cm band amateur service coexistence. This is an important messaging activity and the IARU response again underlines the IARU view that with only two cases of interference recorded globally, the potential for interference is being over-stated and that any regulatory solutions should be proportionate, realistic and appropriate and should not hinder the future development of amateur services. The IARU would be pleased if member societies could share these same views with their national regulators.
The full IARU R1 response can be found at
The PRC/SRLC is also developing a response to the European Commission Radio Spectrum Policy Group (RSPG) on the same topics.
Secondly the CEPT project team SE40 that is carrying out the CEPT studies on the RNSS/23cm band topic met during the week 25 – 28th July 2022. The IARU provided a contribution and participated in the meeting supported by USKA. Good progress was made but further work continues to be required to finalise the conclusions from the studies. The IARU continues to be concerned about the lack of consideration being given to the low probability of interference and more work is needed on this aspect. A summary report can be found at
Source IARU Region 1 https://iaru-r1.org/
The Chair of the IARU Region 1 Spectrum Regulation and Liaison Committee, Barry Lewis G4SJH, took part in a joint session with the IARU-R1 Political Relations Committee (PRC) during the member society International Meeting convened during the HamRadio2022 Friedrichshafen event.
The session highlighted the connections the SRLC maintains with Region 1 regulatory bodies and the work carried out since early 2021. This included engagement in the WRC23 preparatory activities in a number of regional bodies and the detailed study work both with ITU‑R and CEPT. The hot topics affecting amateur spectrum bands were summarised with particular attention being paid to the 23cm band topic on the agenda of WRC23.
The SRLC slide set can be found at
Further detailed information on the 23cm band topic can be found at
Source IARU Region 1 https://iaru-r1.org/
After review and approval by the IARU Region 1 Executive Committee and the IARU Administrative Council a presentation on preliminary Amateur / RNSS Coexistence in the 23cm band has been released.
See the presentation at
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