@MPIfR_Bonn @hausderastronomie

It was a wild week indeed. A huge shout-out to the Astro team at Wacken, but also at home helping us with the preparations and social media (in alphabetic order): Andreas Hänel, Carolin Liefke, Ekaterina Moerova, Florian Rünger, Gyula Józsa, Janine Fohlmeister, Jessica Koch, Lucas Krone, Marc Hempel, Nadya Ben Bekhti-Winkel, Patricia Aparicio Marcos, Robert Brose

Thanks a lot to German Astronomical Society, @MPIfR_Bonn and #CRAF for supporting us financially.

Alguén comentou nalgunha ocasión que unha boa banda de música é aquela que é mellor no directo/en vivo que gravada.

Pola dinámica atual aplicábel á maioría dos concertos de rock, punk, etc., diría que se fai difícil afirmar tal cousa das bandas destes tipos de música. E non porque non sexan boas bandas ou capaces de facer bos directos.

Mais, como gozar dun directo amplificado de tal modo que se perden as cualidades do son?, transmitindo o que pode ser boa música con moi baixa fidelidade (quen prefire escoitar música de ficheiros mp3 que de ficheiros wav?). Música transformada en barullo.

Por non falar dos efectos prexudiciais respecto dos oídos dos oíntes.

Baseándome neste último punto, propoño o concepto de CRAS: Concerto de Rock Acústicamente/Auditivamente Saudábel.

Ou baseado no punto anterior, CRAF: Concerto de Rock de Alta Fidelidade. Aquel no que se perciben as cualidades dos distintos instrumento, as melodías, as letras, etc.

HFRC: High-Fidelity Rock Concert
HERC: Healthy Earing Rock Concert

Boa parte da responsabilidade será dos técnicos de son. Pero eles non deixan de ser mandados ás ordes das bandas de música.

#CRAS #CRAF #HFRC #HERC

I just returned from an intense week in Grenoble, where we had our yearly Committee on Radio Astronomy Frequencies (#CRAF) meeting after a 2-day workshop of the IAU/CPS, which I co-organised. Our host, IRAM, was so kind to invite us to the NOEMA observatory on Plateau de Bure, a sub/-mm radio interferometer at 2550 m altitude. NOEMA just got a big extension and now features twelve 15-m antennas. I wanted to go there since many years and I'm super grateful to the IRAM that they made it possible.

I'm not only a big fan of free open source software #FOSS, but also of open data. Compared to when I started with spectrum management (protecting radio astronomy frequencies) some ~10 years ago, the availability of public datasets with fantastic quality has sky rocketed.

Today, we use Lidar-based topographic (height) maps, which help us determining the level of terrain shielding of our sensitive telescopes from terrestrial transmitters such as cell-phone towers. We can query openstreetmap to obtain road data - very useful if you want to study the impact of car radars on observations. Thanks to the European Copernicus programme, we also have access to population densities, land cover data and so much more.

Thanks a lot also to the developers of easy-to-use software, which allows us to work with all these datasets with ease. We are truly standing on the shoulders of giants... The Committee on Radio Astronomy Frequencies (#CRAF https://www.craf.eu/) contributes a small part to this: with our #pycraf (https://pypi.org/project/pycraf/) software package for #Python, which can be used for spectrum management compatibility studies.

Information on image content and licenses in the next post. 1/2

CRAF | Committee on Radio Astronomy Frequencies

Black Wolf 4.6% Mild

Fat Cat Norwich Bitter Session Bitter

Mr Winter's Tranquility Session Bitter

Mad Wolf

Mr Winter's Vanilla Latte

#realale #craftbeer #beer #ale #pub #beerstagram#camra #beerlover #craftale##brewery #paleale #publife #dogfriendly #craftbeers #beersofinstagram #alelover #beerfan #bar#greatyarmouth #ale #alelover #bar #beer #beerfan #beerlover #beersofinstagram #beerstagram #craf

https://www.blackfriarstavern.co.uk/on-now-at-the-blackfriars-tavern-19th-nov-21/

On Now At The Blackfriars Tavern 19th Nov 21

Black Wolf 4.6% Mild Fat Cat Norwich Bitter Session Bitter Mr Winter's Tranquility Session Bitter Mad Wolf Mr Winter's Vanilla Latte

今日飲んだビール
流氷DRAFT
網走ビール
Speciality Ale
ABV 5.0%
IBU 記載なし
#ビール #クラフトビール #beer #craf'beer
Thus, #CRAF is hoping that regulation authorities will consider improving the situation. As this will take time, we are very happy that #SatCon operators so far are very cooperative. 6/

#CRAF also made a press statement about the new finding today. https://www.esf.org/news-media/news-press-releases/article/craf-concerned-over-electromagnetic-leakage-from-satellite-constellations-that-could-impact-astronomical-observations/

CRAF is an expert committee of the European Science Foundation. 4/

CRAF concerned over electromagnetic leakage from satellite constellations that could impact astronomical observations.

Some of us are also heavily involved in spectrum management. That is we go to meetings of the ITU-R and other organisations to fight for an interference-free environment at the radio telescopes.

Our spectrum management work is mostly done under the umbrella of the Committee on Radioastronomy Frequencies (#CRAF, https://www.craf.eu/). CRAF was involved with the compatibility calculations done in ECC Report 271 (https://docdb.cept.org/document/1032).
3/

CRAF | Committee on Radio Astronomy Frequencies

@alexshill @Jwilliams It is not mandatory to join your national delegation. There is #IUCAF or #CRAF for example...

Being part of a national delegation can be both, beneficial or problematic as you are of course bound to your national positions in this case.