Ireland

252 LW RTE Radio 1 to be off the air for almost 2 months for mast “essential maintenance”.
Work has commenced on schedule.  So an opportunity to dx Algeria. The Tipaza Longwave transmitter broadcasts the French-speaking station Alger Chaîne 3 on the longwave frequency of 252 kHz. It is situated near Tipaza at 36°33’58” N and 2°28’50” E, and reportedly has a transmission power of 1500 kW during the day and 750 kW at night. The antenna is a 355-meter tall guyed mast, which is the second-tallest structure of Algeria.
(Per Wikipedia)
Mike Terry to Longwaveradiolistening groups.io (2021-06-18)

France

Mediumwave masts in Nomeny demolished.
Translated by Google:
“Mediumwave broadcasting has largely been history in France since 2016. It is therefore not surprising what happened on May 31, 2021, in Nomeny, between Nancy and Metz: the masts of the medium-wave transmitter disappeared from the landscape.
The station Nomeny has been switched off since 2014. At that time, Radio France had already separated from the frequencies 792 kHz from Nieul near Limoges and 945 kHz from Muret near Toulouse. The operation of the medium waves still remaining after that ended in 2015.
In Nomeny there were two frequencies: 1350 kHz in single-frequency operation with Nice-Antibes for France Inter and 837 kHz for the former “Réseau Ondes Moyennes”. France Inter’s mediumwave broadcasting was discontinued at the end of 1996. At that time, the channels on 675, 1071 and 1161 kHz were also switched off.”
Original text in German.
Radio Eins Radio-News (2021-06-11)

United States

RC Amer’s Vision Communications sells Conservative Talk 1410 KKLO 1410 KKLO Leavenworth/92.7 K224FF Lenexa KS to Radio Vida Kansas for $775,000. KKLO serves the Kansas City market, where the buyer’s “Radio Aliento” Spanish Christian programming is heard on Iglesia Pentecostal Casa De Dios Para Las Naciones’ 100.7 KCGG-LP Kansas City KS.
RadioInsight (2021-06-11)

South Korea

The radio station that doesn’t exist.
Translated by Google from German:
“There has been something really interesting in South Korea since 2019: a large medium-wave transmitter that doesn’t even exist. This is to be understood as a further addition to the programs unofficially broadcast by the secret service NIS, (in the opinion of some observers: not only) intended for listeners in North Korea.
The non-existent transmitter is at Yeoncheon, six kilometres from the border area that precedes the actual demilitarized zone around the armistice line (12 km away).
This is the AM radio station that is closest to the inner-Korean border. It is located above the Imjin / Rimjin River, from a tourist vantage point it can be seen as on a presentation plate.
The transmitter was built in the second half of 2018 and put into operation on May 1, 2019. It works on the frequency 756 kHz, which the Korean Broadcasting System had previously cleared in early 2015.
In Pyongyang, they were apparently aware of what the South Korean side was planning as early as 2017. At the time, interference appeared that was not yet present while KBS was using the frequency. Outside observers immediately wondered what might be in the bush here.
The program, which has been broadcast on 756 kHz since 2019, has no real name. Characteristic is the opening of the broadcast hours with encouraging slogans and the announcement of the “news centre” (“News Gwangjang”).
Individual contributions will also appear in English in the programs. They are not produced in-house; rather, the designers use a wide variety of sources here. The Korean-language material also seems to come, at least in part, from KBS, whether officially or not.
From a South Korean listener’s point of view, this station is a real Flying Dutchman. The antenna, which consists of three towers, bundles the signal strength to the north, which means that it can be heard as far as Siberia, but is overlaid in large parts of South Korea by the transmitters in China, which also operate at 756 kHz.
Mention of the station is also undesirable. Something like that has very concrete consequences in South Korea. There is strong internet censorship in the country, one of which can also be viewed from abroad: the warning page to which calls from blocked addresses are redirected.
With domestically operated websites, certain content simply disappears quietly. According to Chris Kadlec, a radio fan from the USA, this is exactly what happened with mentions of the station 756 kHz.

Original text in German:
In Südkorea gibt es seit 2019 etwas recht interessantes: Einen Mittelwellen-Großsender, den es überhaupt nicht gibt. Darunter zu verstehen ist eine weitere Ergänzung der vom Geheimdienst NIS inoffiziell ausgestrahlten, (nach Meinung einiger Beobachter: nicht nur) für Hörer in Nordkorea bestimmten Sendungen.
Die nicht existierende Sendeanlage steht bei Yeoncheon, sechs Kilometer vor dem Grenzgebiet, das der eigentlichen demilitarisierten Zone um die (hier 12 km entfernte) Waffenstillstandslinie vorgeschaltet ist.
Damit handelt es sich um den am dichtesten an die innerkoreanische Grenze herangerückten AM-Rundfunksender. Er befindet sich, von einem touristischen Aussichtspunkt wie auf dem Präsentierteller zu sehen, oberhalb des Flusses Imjin/Rimjin.
Die Sendeanlage wurde im zweiten Halbjahr 2018 gebaut und am 1. Mai 2019 in Betrieb genommen. Sie arbeitet auf der Frequenz 756 kHz, die das Korean Broadcasting System zuvor Anfang 2015 geräumt hatte.
In Pjöngjang war man anscheinend schon 2017 darüber im Bilde, was die südkoreanische Seite hier plant. Seinerzeit tauchten Störsendungen auf, die während der Nutzung der Frequenz durch KBS noch nicht präsent waren. Außenstehende Beobachter fragten sich deshalb sogleich, was hier wohl im Busch sein mag.
Das nun seit 2019 auf 756 kHz ausgestrahlte Programm hat keinen wirklichen Namen. Charakteristisch ist die Eröffnung der Sendestunden mit aufmunternden Sprüchen und der Ankündung des „Nachrichtenzentrums“ („News Gwangjang“).
In den Sendungen erscheinen auch einzelne Beiträge in englischer Sprache. Sie werden nicht selbst produziert; vielmehr bedienen sich die Gestalter hier aus den unterschiedlichsten Quellen. Auch das koreanischsprachige Material scheint zumindest teilweise, ob nun offiziell oder nicht, von KBS zu stammen.
Aus südkoreanischer Hörersicht ist dieser Sender ein regelrechter Fliegender Holländer. Die aus drei Türmen bestehende Antenne bündelt das Signal stark nach Norden, wodurch es zwar bis nach Sibirien zu hören ist, in weiten Teilen von Südkorea aber von den ebenfalls auf 756 kHz arbeitenden Sendern in China überlagert wird.
Zudem sind Erwähnungen des Senders unerwünscht. So etwas hat in Südkorea ganz konkrete Folgen. In dem Land gibt es eine ausgeprägte Internetzensur, von der ein Baustein auch aus dem Ausland betrachtet werden kann: Die Warnseite, zu der Aufrufe gesperrter Adressen umgeleitet werden.
Bei den im Inland betriebenen Internetseiten verschwinden bestimmte Inhalte auch einfach still und leise. Nach Angaben von Chris Kadlec, einem aus den USA stammenden Rundfunkfan, ist genau das auch schon mit Erwähnungen des Senders 756 kHz passiert.
Nicht aus Südkorea betrieben und deshalb für die dortigen Zensoren unerreichbar ist eine von Kadlec gepflegte umfangreiche Seite über die Mittelwellenszene aus Seouler Sicht, die auch in Wort und Ton auf die Spezialität 756 kHz eingeht.
Kai Ludwig in Radio Eins Radio-News (2021-06-04)


Ukraine

[….]
Within six months, the government shall ensure the deployment of a nationwide digital multichannel TV network MX-7 based on the Concern of Radio Broadcasting, Radio Communication and Television as the operator of the state multiplex.
It shall also ensure radio broadcasting in the medium-wave range, including with specially designed content, to cover the temporarily occupied territories in Donetsk and Luhansk regions with a signal coming from Ukrainian radio stations.
[….]
unian.info (2021-06-03)

Space

Is our sun going into hibernation?
Each sunspot cycle has been getting less intense. Is our star falling asleep? Solar activity refers to the state of the sun’s magnetic field and associated phenomena: sunspots, flares, solar wind and coronal ejections. During periods of minimal solar activity, such events are often uncommon and weak. During solar maximum, they’re at their strongest and most frequent. Magnetic field fluctuations on the sun can happen on drastically different timescales, ranging from seconds all the way to billions of years. When astronomers speak of a “slowdown” or a period of quiescence in the sun’s activity, it doesn’t mean the sun will stop shining, but that there’s a slowdown in activity. The sun has one particular rhythm, lasting approximately 11 years, in which its polar magnetic field flips polarity. Sunspots serve as an indicator of this change. Indeed, it’s often known as “the sunspot cycle.”
space.com
Mike Terry to WRTH FB group (2021-0-03)

Unid / Italy

Google translated:
For a few days now, music with hits & oldies non-stop has been broadcast around the clock on the 927 kHz without any moderation, such as details of the station name.
The reception and the quality of the modulation are quite good. In most cases, WMR from Denmark on the same frequency is completely displaced by this station.
The music format with disco, dance and funky music is more reminiscent of the former station “I AM-Radio”, which broadcast from Italy on 1350 kHz. A quieter music track is only played at night from about 00:00 to 06:00.

Original text:
Seit einigen Tagen wird auf der 927 kHz Musik mit Hits & Oldies Non Stopp ohne jegliche Moderation, wie Angaben des Sendernahmens, rund um die Uhr ausgestrahlt.
Der Empfang und die Qualität der Modulation ist recht gut. Zumeist wird durch diesen Sender WMR auf selbiger Frequenz aus Dänemark völlig verdrängt.
Das Musikformat mit Disco, Dance und Funkymusik erinnert eher an den ehemaligen Sender “I AM-Radio”, welcher auf 1350 kHz aus Italien sendete. Nur Nachts ca. ab 00:00 – 06:00 Uhr wird eine ruhigere Musikschiene gefahren.
Steffen Mehnert (2021-06-01)

Egypt

The large transmitter 1000 kW at a frequency of 621 kHz of Voice of the Arabs had backup for occasional maintenance work at a low power of about 50 kW.
This transmitter was also not activated anymore.
From this I understand that the station broadcasts only on the air in the Cairo area on FM and on the Internet.
Offer Barth (2021-05-29)

Israel

On July 5 2020 there was a news post that Kan Moreshet was broadcasting on 1458 KHz from She’ar Yashuv, Israel on a reactivated transmitter.  That transmitter is no longer listed on the Kan website’s main frequency list, nor on fmscan.org, but is listed under a separate frequency list from the Kan Tarbut page (another Kan radio station).
Has it closed down?  This would mean that Israel no longer has any stations on mediumwave.

Kan Israel main page: https://www.kan.org.il/
Kan Tarbut station page: https://www.kan.org.il/live/radio.aspx?stationid=5

Current listing (referenced from the bottom of the Kan Israel main page or the Kan Tarbut station page or other Kan website pages, in Hebrew): https://kanstatic.azureedge.net/download/files/180221.pdf
Former listing (referenced from near the top of the Kan Tarbut page, in Hebrew):  
https://kanweb.blob.core.windows.net/download/files/%D7%AA%D7%93%D7%A8%D7%99%D7%9D%20%D7%97%D7%93%D7%A9.pdf   NOTE: AM frequency on the top of page 2.
Liron (2021-05-29)