WRMI Summer Schedule Update- July 1, 2025

 

The current summer color grid, which includes programming information, is available at: 

https://docs.google.com/spreadsheets/d/1pcIEX8kisrOPqlXHDAq6gympKUgDj0SIb96qce2kGGQ/edit?gid=0#gid=0

All times UTC

Programming in English, French, Italian, Japanese, Portuguese, Russian, Slovak, Spanish

0000-0100  5010ca  5050na  5850na  5950na  7730na  9455na  15770eu     

0100-0200  5050la  5800la  5950na   7780ca   9455na  15770eu

0200-0300  5010ca  5050la  5950na  7780ca  9455na  9955sa  15770eu

0300-0400  5010ca  5050la  5800la  5850na  5950na  15770eu

0400-0500  5850na  5950na  7570na  7730na  7780ca  9455na  9955sa  15770eu

0500-0600  5850na  5950na  7570na  7730na  7780ca  9395na  9455na  9955sa  15770eu  

0600-0700  5850na  5950na  7570na  7730na  7780ca  9395na  9455na  9955sa  15770eu  

0700-0800  5850na  5950na  7570na  7730na  7780ca  9395na  9455na  9955sa  15770eu  

0800-0900  5950na  7730na  7780ca  9395na  9455na  9955sa  15770eu

0900-1000  5950na  7730na  7780ca  9395na  9455na  9955sa  15770eu

1000-1100  5950na  7570na  7730na  7780ca  9395na  9455na  9955sa  15770eu

1100-1200  5850na  7730na  9395na

1200-1300  7730na  9395na  15770eu

1300-1400  7730na  9395na  

1400-1500  7730na  9395na  15770eu

1500-1600  7730na  9395na  9955sa  17790la

1600-1700  7730na  9395na  17790la

1700-1800  7730na  9395na  15770eu  17790la

1800-1900  7730na  9395na  15770eu  17790la

1900-2000  7730na  9395na  17790la

2000-2100  9395na  17790la

2100-2200  7730na  9395na  17790la

2200-2300  5010ca  5050la   5850na  5950na  7570na  7730na  9455na  15770eu  17790la

2300-0000  5010ca  5050la  5850na  7570na  7730na  9455na  17790la

Target Areas:

ca  Central America

eu  Europe

la  Latin America

na  North America

sa  South America

WRMI website:  http://wrmi.net/

Reception Reports: info@wrmi.net 

https://www.wrmi.net/index.php/reception-report-qsl/ 

Rapid E-QSL: Send a reception report and receive an immediate e-QSL to: wrmiqsl@gmail.com

(GVH/Teak Publishing)

Blog Logs-July 2025

 

Welcome to the July issue of Blog Logs. Thank you for your emails, your logging contributions, and following my latest daily tweets on X at Shortwave Central (Gayle Van Horn W4GVH)

@QSLRptMT

Have you subscribed to the Shortwave Central YouTube channel? You will find a vast selection 

of videos and audio airchecks, and the Playlist is growing! Join your fellow radio enthusiasts at: https://www.youtube.com/c/ShortwaveCentral 

The Shortwave Central blog brings you the latest from the ever-changing realm of radio. Additional radio information is covered in my Bits & Bytes monthly column in The Spectrum Monitor e-zine at: https://www.thespectrummonitor.com/

Languages as indicated

// denotes the station heard on a parallel frequency

*Sign-on Sign-Off*/ frequencies in kHz

Monitoring  June 5-29, 2025  

UTC, frequencies kHz 

Mediumwave

Brazil

1110, Rádio Cancão da Divin Providência, Paulinia SP. Portuguese identification “ZYK768” followed by station name …”A Voz do Brasil” at 2200. SINPO 24432. (Rudolf Grimm, São Bernardo SP, Brazil).

Uruguay

1170, Radio Mundo, Montevideo. Spanish talk, ads, and Sports News to ”esta es Radiomundo Montevideo deportes…” SINPO 25442 (Grimm).

Shortwave

Algeria

17600, Ifrikya FM, Bechar, 0830-0906. English news and comments about the Sahara, to African songs, and English comments. Station ID “Ifrikya FM, la voix Africaine.” French comments to 0900 Arabic text // 17600. SINPO 35433 (Manuel Méndez, Spain/BDXC).

Ascension Island

17830, BBC World Service relay at 1855. Sports chat to station ID. Newscast at 1900 amid very poor signal quality. (SIO 222(. (G Van Horn/ LA  Airspy HF+Discovery.).

17780, BBCWS relay, 1701-1711. English service and conversations to BBC identification. Good reception  SINPO 45554 (José Ronaldo Xavier/Brazil/HCDX) Website: https://www.bbc.co.uk/ 

Australia

11870 via Kunumurra, Reach Beyond Australia 1500-1530. Burmese service as indicated on schedule, featuring religious music and text. Closing with station information at 1530. Station website: https://www.reachbeyond.org.au/  YouTube video: https://youtu.be/dID-tLDKe58 

Bolivia

3310, Radio Mosoj Chaski, Catapatchi 0048-0055.  Barely there with rustic Andean music and presumed Quechua announcement. SINPO 32222. (Van Horn/ LA  Airspy HF+Discovery) 3310, 0028-0036 in Quechua comments. SINPO 15422 Also heard 0602-0633 with religious songs and comments. SINPO 25322. (Méndez)

Brazil (Portuguese)

6010, Rádio Inconfidencia, Belo Horizonte 0440-0533. Brazilian songs // 15189.9, SINPO 15421. Additional Brazilian stations noted as:

6150, Rádio Saturno, Belo Horizonte, 0438-0519 with Portuguese comments and music. SINPO 15422.

AirSpy screen capture during broadcast

6180, Rádio Nacional da Amazonia, Brasilia 2029-2042. More Brazilian songs // 11780. SINPO 25422.

9818.5 Rádio 9 de Julho, São Paulo, 2011-2033. Religious comments and music.(Méndez).

China

15760, 1645-1705.  CNR 1/Voice of China via Qiqihar. Chinese text to Asian easy-listening instrumentals to signal time tips at 1658. Announcer’s text and chat. (G Van Horn/ LA  Airspy HF+Discovery)

Additional monitoring China: 13710 China Radio International at 1620-1630 via Kunming-Anning. Turkish service, including conversations for poor reception. Heard CRI on 13790 via Kashi/Kashgar. Arabic service at 1650 for poor reception. SINPO 35432. CRI on 15250, 1609-1619 via Urumqi in English with a lady’s interview. Poor reception, SINPO 25532 (Xavier/HCDX) Website: https://english.cri.cn/ 

Clandestine

11640 Radio Dabanga via Talata-Volonondry. Sudanese service at 1735. Announcers talk to drums and flute music, sung by children. Mentions of programming “to Sudan”. (Grimm).

Cuba

5025, Radio Rebelde 0110-0120. Spanish talk, promos, and announcements. Very good signal (Van Horn/ LA  Airspy HF+Discovery( Rebelde on 5025, 0435-0516 with Cuban music program (Méndez). Very weak signal for Radio Habana on 6000 at 0431 in Spanish. (Harold Sellers, Canada/Comm Radio CR-1A)

Denmark

5930, World Music Radio, Bramming, 2014-2035. Latin American and other featured music // 15700. SINPO 25422. WMR via Randers 15700, 0632-0715. Flute music, English pops to Latin American tune. Station ID “World Music Radio” SINPO 45444 (Méndez).Website: https://www.wmr.dk/ 

Ecuador

AirSpy screen capture during broadcast

6050, HCJB. 0110-0125. Spanish biblical readings.. SINPO 43433. Programming at 0215 from Alex Rodriguez’s tune Alabanza.. Possible Quechua talk about programming.to 0235 closure. Additional monitoring on this frequency from 0010. Praise music into Spanish religious text, station monitored to 0210. (Van Horn/LA/AirSpy HF+Discovery)

Finland

6120, Radio Blacksmith Knoll, Pori 1941-2000. English pop tunes to comments. Very weak. At 2000, eclipsed by very strong noise – likely DRM on frequency. Finland’s Scandinavian Weekend Radio on 11690, 2003-2027 // 11720. Freq 11690 via Virrat 0455-0534 in Finnish and English station ID. (Méndez). Website: www.swradio.net Why did this station STOP QSLing ??

France

Classic RFI QSL

15300, Radio France International at 0417. French programming of fair signal // 11700 poor. (Sellers). RFI 17620, 1641-1650 via Issoudun. Hausa service with news and ID. Program interview, additional news for good reception. SINPO 45544 (Xavier).

NHK World Radio Japan via France relay on 17830 at 1435. Comments from male/female announcers to instrumental music. The target area is the Middle East. SINPO 15321 (Grimm).

Guam

15215, Adventist World Radio in Hindi at 1532. Christian song and announcer’s text. The target area is Northern Indonesia. SINPO 25442. Noted on 15710 in Mandarin at 1450. Christina music. No interval signal observed at the end of transmission. SINPO 25222. The target area is China (Grimm). Website: www.awr.org 

India

Classic All India Radio QSL

9620, Akashvani 1840. Arabic service from 1840 tune-in. Indian vocals program and Arabic announcements. (Sam Wright, MS) 15410 Akashavani at 0304. Brief musical interlude to Elton John’s Candle in the Wind song. Additional Nepali service talk and musical tunes. (Paul Walker, AK). Live audio https://akashvani.gov.in/radio/live.php 

Iran

15240, Pars Today-VO Islamic Rep of Iran. Arabic service, monitored from 120-1535. Two males discussing Tehran/Tel Aviv during the Israeli/Iran conflict. YouTube video available at: https://youtu.be/Yr19_uO0taQ  (Van Horn/Kiwi Iraq SDR) Website: https://parstoday.ir/en 

Madagascar

12095, BBC World Service at 0400. English service relay with news headlines from around the world. Poor signal quality. Madagascar’s African Pathways Radio on 13760 at 0315. English program of pop music and Bible scriptures, and on 11825 English This Day in History at 0402. (Sellers).

Mexico

AirSpy screen capture during broadcast

6185, XEPPM-Radio Educacion. 0115-0125    Evening music program of Spanish ballads with guitar accompaniment. Very good signal SINPO 43434 (Van Horn/ LA  Airspy HF+Discovery) Station website: https://radioeducacion.edu.mx/ 

New Zealand

7440 via Rangitaiki, RNZ Pacific 1500-1505. Opening time tips signal to announcers’ good morning intros. English national news topics, sports report, program previews, weather forecast, and special segments. Station ID at 1505 as “RN National.” Station website: https://www.rnz.co.nz/ (Van Horn, LA/Kiwi Australia SDR) YouTube video: http://youtu.be/RKp_3nARi0

Philippines

15450, FEBC Manila, Bocaue, Rakhine. Tentative at 1417 with Christian broadcast included music and text. SINPO 25432, a program targeted to Southeast Asia (Grimm).Website: https://febc.ph/ 

Spain

AirSpy screen capture during broadcast

17715, Radio Exterior Espana 1902-1915. Spanish service: Male/female trade news items. Station ID/promo at 1904. Local talk on events “Radio Nacional de Espana" ID/promo to local time check. Continued chat and phone-in's. Schedule Monday-Friday. (G Van Horn/ LA  Airspy HF+Discovery) // 15520. Poor signal on 15520, 1645-1650.

United Arab Emirates

5960, BBC World Service relay 2128-2140. The annual Midwinter program from BBC to staff overwintering in Antarctica. YouTube videos, Part 1: https://youtu.be/7HHMEVOJ4xs  Part 2 https://youtu.be/MSrc2_YWAkI (Van Horn/Kiwi Qatar SDR).

United States

17790, Radio Africa via WRMI from 1835 tune in to the lady's French text. to instrumental music 1843-1845. Vocal choir hymn from 1845. English religious discussion as "Has Christianity failed?"  (SINPO 33223) Monitored to 1850. (Van Horn/ LA  Airspy HF+Discovery).

Classic WINB QSL

9265, WINB 2025-2035. Religious sermon and prayer during the Call to Worship program. Praise music to program promotional. Vintage gospel hymns to 2035. SINPO 33333 (G Van Horn/ LA  Airspy HF+Discovery.)

9330, World's Last Chance via WBCQ 2010-2025. Announcer’s discussion on book of John, Chapter 3. Promotional for religious publication, with continued discussion on Yaweh from two hosts. SINPO 43343. (Van Horn/ LA  Airspy HF+Discovery.)

9395, Supreme Masters TV via WRMI. 2002-2010.   Lady's station information and address to male's intro. Text on taking your spiritual path. Website information to news about China's relations with USA. SINPO 33333. (Van Horn/ LA  Airspy HF+Discovery.)

AirSpy screen capture during broadcast

9930, Overcomer Ministries via WRMI. 1940-2000.  Some of the last programming from classic Brother Stair broadcast, preaching on the Tribulation, with listeners' letters and questions. Gospel vocal hymns to 1945. Recorded classic scriptures to vintage gospel hymns. Discussion about Peter's early ministry to a replay from a 1987 sermon. Audible with similar Brother Stair format via WWCR on 9350, 2005-2025. (Van Horn/ LA  Airspy HF+Discovery.) WRMI's Alameda Bible Fellowship on 5010, 0105-0110 with biblical scriptures from 1st Samuel. Very good signal. (Van Horn/ LA  Airspy HF+Discovery)

11875, KNLS Anchor Point, Alaska *0800-0810. Chinese service and comments. SINPO 15422 (Méndez). Website: www.knls.org 

13845, WWCR Nashville, TN. 1620-1630  Today's Creation Moment from 1626 with comments on human evolution. Promo for study material. Station ID at 1628. Bible study from the books of Isiah and Hebrews. (Van Horn/ LA  Airspy HF+Discovery.) Website: https://www.wwcr.com/ 

15150, WMLK Bethel, PA. 1632- 1645.  Classic teachings and text references from Bro. Meyer's scriptures on Yahweh.  Facebook https://www.facebook.com/www.wmlkradio.net/ 

Pop Shop Radio slated for Canada Day Programs

 

Clear your listenig calendar!! Pop Shop Radio is ready to celebrate Canada Day, with two different shows. 

(UTC)

Canada Day Show #1 : 0300  - 1 July (UT) 11960 250 kw from Woofferton to N. America

Canada Day Show #2 : 0300  - 2 July (UT) 11960 85 kw DRM  from Woofferton to N. America

Canada Day Show #1 : 1600  -   2 July 3955/ 9670  Channel 292

Canada Day Show #2 : 1700  -   2 July 3955/ 9670  Channel 292 

.

Tony explains, "You may ask, why DRM digital mode to North America. The reason is that I want to do a proof of concept showcasing DRM. Therefore, because many people have SDRs capable of DRM or web access to Kiwis, we want to give it a go. Reception reports will receive a special physical QSL card and

a small gift for the first 25. "

(Tony Pavick, Pop Shop Radio, Hope-BC-CAN, BrDXC-UK groups.io news June 9)

U.K .Propagation Update

 

RSGB

June 26, 2025

The last week was good from a geomagnetic disturbance point of view. Up until Wednesday, the 25th, the Kp index had not been higher than 3.67, and had mostly been in the ones and twos. This helped HF propagation to a great extent.

Sunspots have been present with the solar flux index sitting at 120 on Wednesday, the 25th. A look at the visible disk at solarham.com shows five sunspot groups facing Earth. None are groundbreaking, but they are at least helping to keep the solar flux index relatively high.

Daytime F2 MUFs over a 3,000km path have been reaching 18MHz and even 21MHz at times, with 14MHz being more reliable. Sporadic E continues to make 28MHz a useful band for short-skip, with much of Europe being workable mid-morning on the 25th, at least using FT8.

Estonia, Germany, Poland, and Finland were all easily worked on FT8, but nothing was heard on the usual 10m CW and SSB frequencies.

Next week, NOAA predicts that the solar flux index will be in the 140 to 150 range. Unsettled geomagnetic conditions are forecast for 1 to 3 July, when the Kp index could reach 4. Conditions may become unsettled again on the 6th and 7th again with a predicted Kp index of 4.

But in the meantime, make the most of the sporadic E on the 10m band, as it won’t last forever!

VHF and up propagation news from G3YLA and G4BAO :

The more traditional summer weather, with patchy rain and showers, is likely to continue for a bit longer. The more persistent rain is likely in the north closer to low pressure near Iceland, whereas the rain may be more intermittent in southern areas, closer to high pressure over France.

This probably rules out any significant tropo in northern Britain over the coming week but does allow for the occasional enhancement in the southern half of the country. Most areas will have some rain scatter opportunities for the GHz band operators—although perhaps fewer in the south than in the north.

The solar conditions have quietened down a little in terms of aurora recently but, as we said last week, don’t forget to look north in the twilight sky for signs of the pale noctilucent cloud. This is a high summer phenomenon. See if you can detect any wave patterns—like ripples on a sandy beach—in the cloud.

The month of June tends to be quite good for meteor input and the last of the set, the June Bootids, peaked on Friday, the 27th. So, there should be some good chances for hearing the odd ping or two, or even seeing one in the evening sky after dusk.

The primary mode of interest is still sporadic E, which is in full swing and doubtless being topped up by the Bootids meteors, which produce the main ingredient of sporadic E propagation—long-lived ions—as they ablate, or burn up, upon entering the atmosphere.

In terms of the usual search for placement of sporadic E events geographically, the main jet stream interest is likely to be across the northern part of Europe for the coming week. This suggests trying paths to Scandinavia and the Baltic states, whereas for triggers due to upper air ridge patterns use the more southern routes.

The Moon has passed perigee for this month, so path losses are rising. Moon declination is still high, not going negative until Tuesday, 1 July. 144MHz sky noise is low, increasing to moderate by next weekend.

 

https://rsgb.org/main/blog/news/gb2rs/propagation-news/2025/06/26/propagation-news-29-june-2025/

(Mike Terry/BDXC) 

Encore classical music from Radio Tumbril

 

Dear Listener,

Regular Broadcast times of Encore By WRMI and Channel 292 are:

02:00 - 03:00 UTC Friday 5850 kHz WRMI to US

20:00 - 21:00 UTC Friday 15770 kHz WRMI to Europe

10:00 - 11:00 UTC Saturday 9670 kHz Channel 292 to Europe

01:00 - 02:00 UTC Sunday 5850 kHz WRMI to US and Canada

19:00 - 20:00 UTC Sunday 3955 kHz Channel 292 to Europe

02:00 - 03:00 UTC Monday 5950 kHz WRMI to the US and Canada

13:00 - 14:00 UTC Tuesday 15770 kHz WRMI to Europe, east coast of US and Iceland. (Sometimes RTTY on the lower sideband. Suggest to notch out or use USB.)

Some Things to see on The Encore Website:

The Encore website is www.tumbril.co.uk  where you will find:

Important information about funding of Encore - Radio Tumbril.

Up to date transmission times and frequencies.

The playlists for the most recent programs. 

An email link.

Informal reception reports as well as those requesting eQSL cards are welcome.

ENCORE IS A ONE-MAN OPERATION -  PLEASE MAKE A PAYPAL DONATION AND HELP KEEP ENCORE ON THE AIR - Go to - www.tumbril.co.uk

WRMI and Channel 292 are very generous with their airtime but Encore still costs around 100 Dollars/Euros a month to broadcast.

If you can - please send a small contribution to help Encore keep going.

THE DONATION BUTTON is on the homepage of the website - www.tumbril.co.uk - which folks can use if they would like to support Encore.

(Please don't be put off by the POWR security wall when using the PAYPAL button - it is a harmless requirement of WIX, the website hosting service.)

THIS FORTNIGHT'S PROGRAM - First broadcast on FRIDAY 27th June by WRMI at 0200 UTC on 5850, and 2000 UTC on 15770 and then Channel 292 on SATURDAY 28th June at 10:00 UTC on 9670 kHz:

Starts with a Song by 16th Century composer Giobanni Bassano scores for cornet instead of voice, Part of a Ravel string quartet, and some modern sitar music.

After that, part of the violin concerto in E Minor by Mendelssohn, and an aria by Handel.

The programme finishes with some of the 'Trout' Quintet from Schubert, and the poem Pleasure no More by Clément Marot set to music by Ninfea Cruttwell-Reade.

(This bulletin is sent by Bcc to the many hundreds of listeners who have been in contact with Encore over the last nearly six years of broadcasting Encore.)

Brice Avery - Encore - Radio Tumbril - www.tumbril.co.uk

GMØTLY

Music Programs on Shortwave schedule updates

 

An updated - Verson 3, of my Music Programmes on Shortwave PDF file for the current A-25 broadcast season is now available to download from the permanent link at:

https://app.box.com/s/kbdxb4c5lwpju0kpoi27aiwc35br2g2a 

Tiny URL link: http://tinyurl.com/shortwaveprograms 

You will also find my at-a-glance program grids for BBC World Service, Voice of Turkey, CGTN Radio, Radio Romania International, and Radio Taiwan International.

I hope that you find these of interest.

As always, I appreciate any updates or corrections. 

(BDXC/Alan Roe, Teddington, UK)

Live Kickin' rock and beyond - today at 2100 UTC

 

One hour every Friday of my live afternoon show from KSKO 89.5 McGrath, Alaska is simulcast on 250,000 Watt Shortwave Outlet Spaceline Bulgaria on 5900... 2100-2200UTC. A Loud Mouth With Some 

Kickin' Rock N Pop Music on SW, Live Every Friday! 

The partnership between Spaceline Bulgaria and me is largely driven by the desire to offer something different on shortwave while having some fun. Tune in for a smattering of 80s and 90s AC Gold/Pop Gold/Rock music and play it on my live afternoon show 

If you can't hear it at home, many SDR's in Europe can. ZERO company/station or personal money is spent on this. 

Paul Walker

"The Alaska Radio Nerd"

paul@alaskaradionerd.com

Program Director: KSKO 89.5 FM McGrath, Alaska, USA

Afternoon Host: Hits 106 KLMI-FM Laramie, Wyoming, USA

The Spectrum Monitor e-zine, July 2025

 

The Spectrum Monitor, July 2025, Early Radio Healers and Hucksters

Amateur, Shortwave, AM/FM/TV,WiFi, Scanning, Satellites, Vintage Radio, and More

Don't miss another GREAT issue of The Spectrum Monitor. The July issue features; 

Vintage Radio Special

Marconi at Sea

Harold H Beverage

Jagadish Chandra Bose

The At-Water Kent One-Dialer

plus...

The very latest in shortwave, mediumwave, utility listening, radio restoration, digital, amateur radio, VHF and above ... and MUCH more. Don't miss the July issue. 

For subscription informaiton, go to: www.thespectrummonitor.com 

Radio in Ireland, - Part 1: Wireless and Medium Wave

 Special thanks to Ray Robinson and Jeff White for sharing this weeks special on the radio scene in Ireland - Part 1 of 3.

Classic ads from Ireland

Jeff: We begin this week by asking the question, "Did Ireland ever establish its own shortwave station?"  To answer this question, and to learn a lot more about broadcasting in the Emerald Isle, Ray Robinson has been delving into the long and fascinating history of wireless and radio broadcasting in Ireland.

Ray: Thanks, Jeff.  The island of Ireland is indeed beautiful with its rolling green pastures, rugged mountains and scenic lakes.  Whether seen from the air while flying between Europe and North America, or being visited on vacation, I’m told that Ireland has its charms and fascination, although I’ve never been there myself.

The history of Ireland can be traced back through the distant past to the very dawn of human settlement in Europe.  Many people groups with varying ethnic backgrounds have migrated at times from elsewhere in Europe to this green, verdant and in some places rugged island at the north west extremity of the continent.  The ancient capital of Ireland was at Tara, about 27 miles northwest of present-day Dublin, and there’s a tradition that in 569 BC, the Biblical prophet Jeremiah traveled there from Egypt in his old age and set up a school to teach other Israelites (who had migrated there in earlier generations) wisdom from the books of Moses, Joshua and Samuel, and from the Psalms of David.

From 1542 until 1800, the Kingdom of Ireland, which had united the whole island of Ireland, was a dependent territory, first of England, and then after 1707, of Great Britain.  It was administered from Dublin Castle by a Viceroy appointed by the monarch in London.  Then in 1801, Ireland officially became a part of the United Kingdom of Great Britain and Ireland when the British and Irish Parliaments passed a joint declaration known as the Acts of Union.  This was not universally popular, however, and many Irish nationalists opposed the union.  Three rebellions occurred during the 1800’s, but all were failures.  However, in April 1916 an armed insurrection known as the Easter Rising took place in Dublin, while the British were fighting World War I.  Sixteen of the Rising’s leaders were duly executed the following month, including the grandfather of Ronan O’Rahilly, the founder of Radio Caroline.  Those executions, combined with subsequent political developments led to increasing popular support for Irish independence.  Then, in 1921, the island of Ireland was partitioned into two states – six of the nine counties of Ulster that were predominantly Protestant and Royalist became Northern Ireland, while the other three counties of Ulster and the provinces of Connacht in the west, Leinster in the east and Munster in the south, which were all predominantly Catholic and anti-Royalist, became the Irish Free State, a self-governing dominion of the UK.  The Irish Free State did not participate in World War II, and was officially neutral.  Finally, in 1949, the Irish Free State declared itself independent of the UK, and became the Republic of Ireland, which these days is a part of the European Union, using the Euro for its currency.  The population of the Republic is now about 5 million, with another 2 million in Northern Ireland.

The story of radio broadcasting in Ireland goes way back to the very beginning of early wireless experimentation, and this is how it all happened:

In 1896, the famous wireless experimenter Marconi travelled from Italy to England, where he conducted several demonstrations for the benefit of government officials.  Two years later, Marconi went over to Dublin for the annual Kingstown Regatta in Dublin Harbor where he demonstrated the practical value of wireless communication.

Marconi installed a wireless transmitter on board a tug boat, the "Flying Huntress." and he transmitted the progress of the boat race in Morse Code for the benefit of the "Daily Express" newspaper which printed the results in a special edition.  The Kingstown Regatta was a two-day sporting event that was held on July 20 and 22, 1898.

Three years later in 1901, two coastal wireless stations were established in Ireland, one at Crookhaven in County Cork, and the other at Rosslare in County Wexford.  These two stations were located on the southern coast of Ireland, as the first and last stations for ships travelling along that coastline.  The station at Crookhaven was on the air with spark gap transmissions in Morse Code under the callsign GCK.

Three years later again, Marconi established his famous station at Clifden in County Galway at the center of the west coast of Ireland.  This station was constructed for transatlantic communication in Morse Code.  Originally the callsign was simply CDN, an abbreviation for the location name, Clifden, though later the station was officialized with a British callsign, MFT.

        

Ireland is one of the many countries that claims a world first for wireless broadcasting.  During the previously mentioned Easter Rising in 1916, the undersea cable linking Ireland and England was deliberately cut by the British, making it impossible for immediate news to get out of Ireland.

During the rebellion, republican leaders occupied the Irish School of Wireless Telegraphy in Dublin.  Beginning on April 25th at 5:30 pm using a ship’s wireless transmitter that had been repaired, they transmitted messages in Morse Code for a period of 20 hours, giving news reports on the progress of the rebellion.  That transmission has subsequently been claimed by the Irish as the first wireless ‘broadcast’ in the world.

Radio broadcasting first came to Ireland when a medium wave station was launched by the BBC in Belfast, Northern Ireland, in October 1924.  This station was assigned the call 2BE, and it used 1.5 kW on 440 meters (680 kHz).

The first station in the Irish Free State began testing in Dublin in late 1925, and was officially launched on January 1st 1926 with the callsign 2RN, the letters chosen to sound like "Eireann," the Gaelic name for Ireland.  This was also a 1.5 kW unit, which operated on 390 meters (770 kHz).  The inauguration ceremonies were relayed by the 25 kW BBC station 5XX at Daventry in England.  The studios and transmitter for station 2RN were originally located in a wooden hut next to the police barracks in Dublin, though soon afterwards the studios were relocated above the offices of the Employment Exchange.

The next radio station to be launched in Ireland was 6CK in Cork on the south coast, initially with 1 kW on 400 meters (750 kHz).  This station was inaugurated in 1927 with its own production studios, and it operated as 6CK for three years.  In 1929, it changed wavelength to 224 meters (1337 kHz).  Then in 1930, it became a slave relay of 2RN for a period of nearly 30 years.

In preparation for the broadcasts of the Eucharistic Congress in Dublin in June 1932, a large 60 kW transmitter was installed temporarily for radio station 2RN.  After the conclusion of the Congress, the transmitter was re-installed at Athlone in the dead center of Ireland for nationwide radio coverage on 530 meters (566 kHz).  And that’s why European radios of the 50’s and 60’s have ‘Athlone’ marked on the dial at the far end of the medium waveband.

In January 1941, the BBC donated a new 2 kW medium wave transmitter to replace 2RN’s aging 15-year-old unit in Dublin.

During World War II, the three medium wave stations in Ireland were synchronized on one channel so they couldn’t be used as radio beacons for invading aircraft and ships.

By 1970, the Cork station had been upgraded to 10 kW and the Dublin station to 5 kW, both on 240 meters (1250 kHz).

In 1955, the Athlone transmitter was upgraded to upgraded to 100 kW, and in the 1990’s it was replaced by a 500 kW unit in 

Tullamore, a few miles to the southeast.  Neither transmitter was ever allocated a callsign.

After the creation of the Republic of Ireland in 1949, the stations had adopted the name Radio Eireann, and in 1950, Radio Eireann was one of the 23 founding organizations of the European Broadcasting Union.  Television broadcasts started on December 31st 1961, and five years later, the name was finally expanded to Radio Teilifis Eireann, or RTE.  The radio station that had started life on January 1st, 1926 as 2RN became the foundation for what is today Ireland’s first public service radio network, RTE1, which now operatedson FM and DAB only.

And, we’ll continue the story of radio broadcasting in Ireland, including answering that question about shortwave, next week.

Back to you, Jeff.

(Ray Robinson/NWS Wavescan)

Weekly Propagation Forecast Bulletins

 Product: Weekly Highlights and Forecasts

:Issued: 2025 Jun 23 0047 UTC

# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center

# Product description and SWPC web contact www.swpc.noaa.gov/content/subscription-services

#

#                Weekly Highlights and Forecasts

#

Highlights of Solar and Geomagnetic Activity 16 - 22 June 2025

Solar activity reached high levels on 17 and 19 Jun when Region 4114 (N21, L=35, class/area=Ekc/400 on 19 Jun), the largest and most complex region on the disk throughout the week, produced an X1.2/2b flare at 17/2149 UTC and an X1.9 flare at 19/2350 UTC; the strongest events observed this period. In addition, Region 4114 produced five R1 (Minor) events on 16-17 and 20 Jun, and one R2 (Moderate) event on 16 Jun. Region 4117 (S14, L=303, class/area=210 on 19 Jun) produced a single R1 (Minor) event this period; an M1.0/1f flare at 20/1740 UTC. No Earth-directed CMEs were observed throughout the week. 

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit was at normal to moderate levels throughout the period. 

Geomagnetic field activity was at quiet to active levels on 16, 18-19, and 21-22 Jun, with quiet to unsettled levels observed on 17 and 20 Jun, due to sustained positive polarity CH HSS influences throughout the week. No Earth-directed CMEs were detected in solar wind data. 

Forecast of Solar and Geomagnetic Activity 23 June - 19 July 2025

Solar activity is expected to range from low to moderate levels throughout the period. There is a chance for R1-R2 (Minor-Moderate) radio blackouts, and a slight chance for R3 (Strong) or greater events, through 18 Jul. 

No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is likely to reach high levels on 26-28 Jun, with normal to moderate levels likely to prevail throughout the remainder of the period. 

Geomagnetic field activity is likely to reach G1 (Minor) storm levels on 25-26 Jun, and active levels on 24 and 27 Jun and 01-03, 05-06, and 11-12 Jul, all due to recurrent CH HSS influences. Quiet and quiet to unsettled conditions are expected to prevail throughout the remainder of the period.

Product: 27-day Space Weather Outlook Table 27DO.txt

:Issued: 2025 Jun 23 0047 UTC

# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center

# Product description and SWPC web contact www.swpc.noaa.gov/content/subscription-services

#

#      27-day Space Weather Outlook Table

#                Issued 2025-06-23

#

#   UTC      Radio Flux   Planetary   Largest

#  Date       10.7 cm      A Index    Kp Index

2025 Jun 23     125          12          3

2025 Jun 24     120          12          4

2025 Jun 25     125          35          5

2025 Jun 26     130          25          5

2025 Jun 27     135          15          4

2025 Jun 28     140          15          3

2025 Jun 29     145          10          3

2025 Jun 30     145           5          2

2025 Jul 01     140          15          4

2025 Jul 02     140          15          4

2025 Jul 03     140          12          4

2025 Jul 04     145           5          2

2025 Jul 05     150          15          4

2025 Jul 06     155          15          4

2025 Jul 07     150          10          3

2025 Jul 08     155          10          3

2025 Jul 09     155          10          3

2025 Jul 10     150           5          2

2025 Jul 11     150          15          4

2025 Jul 12     145          15          4

2025 Jul 13     140          10          3

2025 Jul 14     145          10          3

2025 Jul 15     145          12          3

2025 Jul 16     145          12          3

2025 Jul 17     140          10          3

2025 Jul 18     135          10          3

2025 Jul 19     130          10          3

(NOAA)

YouTube videos of BBCWS Midwinter Antarctica Special

Antarctic Midwinter Broadcast 2025  celebration - 70th Anniversary Edition, June 21, 2025

Programming for British Survey (BAS) staff stationed at UK bases during the southern hemisphere's midwinter day.

United Arab Emirates, BBC relay- Midwinter Antarctica Special -

Part 1 https://youtu.be/7HHMEVOJ4xs

United Arab Emirates, BBC relay- Midwinter Antarctica Special 

Part 2 https://youtu.be/MSrc2_YWAkI 

Pope visits Vatican Radio transmitter center, site of possible solar farm

 

Cindy Wooton, Catholic News Service, June 19th

 

Almost a year after Pope Francis set up a commission to develop a large solar-panel array on Vatican property outside of Rome, Pope Leo XIV visited the site and the Vatican Radio employees working there.

 

The 1,060-acre site about 11 miles northwest of Rome is home to Vatican Radio's shortwave transmitters and transmission center.

The Vatican press office said the pope visited the property at Santa Maria di Galeria June 19 along with officials from the Dicastery for Communication and the Vatican City State governor's office. Meeting the center's staff, Pope Leo asked about "the operation of the antennas, transmissions and the digital disaster recovery system," the statement said.

 

The day was the 43rd anniversary of his priestly ordination, which he and the staff celebrated "with light refreshments," the press office added. "Pope Leo emphasized how during his missionary work in Latin America and Africa, it was valuable to be able to receive Vatican Radio's shortwave transmissions, which reach places where few broadcasters can reach, and he reaffirmed the missionary value of communication," it said.

   

Additional story at:

 https://www.usccb.org/news/2025/pope-visits-vatican-radio-transmission-center-site-possible-solar-farm

 

(BDXC/Mike Barraclough)

Antarctic Midwinter Broadcast 2025 celebrates 70th Anniversary Edition, on June 21

 

photo via BBC

ANTARCTICA / U.K.   

The annual midwinter broadcast to British Antarctic Survey staff in Antarctica will be broadcast on Saturday, 21 June.

Tune in Saturday, June 21, 2025, from 2130-2200 UTC, the BBC World Service will broadcast its annual midwinter broadcast to Antarctica for British Survey (BAS) staff stationed at UK bases during the southern hemisphere's midwinter day. In 2024, the broadcast was transmitted on 9585 and 11685 via Woofferton, UK, and 9870 from the Ascension Island relay. 

A slightly shorter version will be carried the same day from 1832-1900 UTC on BBC World Service English streams online as well as via DAB in the UK.

This special 70th Anniversary broadcast, unlike anything else in the BBC World Service, is dedicated to the BAS teams overwintering in Antarctica. Programming features messages from family and friends at home, along with music requests from the station in Antarctica. As the BBC notes, "For decades it has been part of the traditional midwinter celebration." 

Test broadcasts were recently observed on June 14, 2025, at 2030 UTC as:

 5960 kHz - UAE

 9575 kHz - Ascension

12065 Woofferton UK

BBC may use these frequencies on Saturday.:

Additional information is available at: https://www.bbc.co.uk/programmes/w3ct7zyv

(The Spectrum Monitor-Bits & Bytes June 2025/WWDXC Top Nx 1621/19 Jun 2025)

Uncle Bill's Melting Pot, June 2025

 

June's theme will be Bollywood vs. Lollywood, some of my favorite songs from India's and Pakistan's film industries (make music, not war, say I, and there will not be any losers in this episode) and will air as follows: 

UTC

Friday, June 20: 

6070 kHz at 1700

3955 at 2100 

Sunday, June 22 

9670 kHz at 1700 using beam E (repeat of June 20 episode). 

  

For those of you who were avoiding 3955 due to mixing product issues at the station, we have been informed that this has supposedly been fixed. 

**In addition to direct radio reception, we do honor reception reports using remote SDRs as long as the whole program is described and which SDR is specified. 

(Bill Tilford, Owner/Producer)

Tilford Productions, LLC

Recent videos at the Shortwave Central YouTube channel

 

Available at:  https://www.youtube.com/c/ShortwaveCentral 

AM

AM Airchecks - USA, WWL New Orleans, Louisiana https://youtu.be/1huPSfmEZUg

AM Airchecks - USA, KLEB Golden Meadows, Louisiana https://youtu.be/wkmMHQOPAes

AM Airchecks - USA, WLW Cincinnati, Ohio https://youtu.be/P8dNbbluLzo

International Mediumwave

Saudi Arabia, SBA Radio Riyadh https://youtu.be/yUCE6P1QVEc 

Saudi Arabia, SBA Quran Radio https://youtu.be/_gC79sEWF5E

Sweden, Sveriges DX-Forbund  https://youtu.be/_gC79sEWF5E

Sweden, Radio Sweden Int'l/Asfalttelegrafen https://youtu.be/RtP1ftVFsYM 

Longwave

Algeria, Chaine 3,  Tipaza https://youtu.be/a2esccghCI4

Morocco, Medi 1 https://youtu.be/EA4a6AvJ4xI

UK, BBC Radio https://youtu.be/ZPX8H9Vx6O0

Shortwave

Australia, Reach Beyond Australia https://youtu.be/dID-tLDKe58

Brazil, Rádio Inconfidencia https://youtu.be/noYa-XnXBFg

Brazil, Rádio Inconfidencia https://youtu.be/noYa-X

China, CNR 6 Shenzhou EasnXBFgy Radio https://youtu.be/4qJT0ICch9c 

Clandestine, North Korean Jamming Signal https://youtu.be/gXIIr2dxuIc 

Clandestine, Voice of the People https://youtu.be/bPITr5LOwXg 

Ecuador, HCJB  https://youtu.be/Oh4BjQEQn60

Ethiopia, Radio Fana https://youtu.be/ZFPGWBlWd6c

Ethiopia, Radio Oromiya https://youtu.be/r6vyi5XYC_A 

France, NDR Gruß an Bord relay https://youtu.be/9qS3ByTwVuw 

India, Akashvani https://youtu.be/3aFkAPOrqWE 

Indonesia, Voice of Indonesia (English) https://youtu.be/8exhkZ0w00U

Indonesia, Voice of Indonesia (French) https://youtu.be/c6vLEauTs9o

Iran, IRIB/Pars Today VOIRI (Arabic) https://youtu.be/Yr19_uO0taQ

Lithuania, Radio Signal https://youtu.be/MsherVz6Nyw 

Mali, ORTM1-Radio Mali https://youtu.be/P8TqTurpyTE 

Moldova, Vesti FM-Test broadcast   https://youtu.be/fOIWAox7jEQ

Myanmar, Myanma Radio, Yongon https://youtu.be/TAnLsrTSGjs 

New Zealand, RNZ Pacific https://youtu.be/dRKp_3nAri0 

United Arab Emirates, BBC relay- Midwinter Antarctica Special -

Part 1 https://youtu.be/7HHMEVOJ4xs

United Arab Emirates, BBC relay- Midwinter Antarctica Special 

Part 2 https://youtu.be/MSrc2_YWAkI 

United Arab Emirates, IBRA Media/Radio Ibrahim via Al-Dhabbiya https://youtu.be/ymK1Js0vp7I 

United States, WBCQ The Planet https://youtu.be/t7RZ7hNivBQ 

Vatican, Vatican Radio (English) https://youtu.be/P_Z08mkV2cA

Vietnam, VO Vietnam # 4 https://youtu.be/1w5anhE6_JE 

Vietnam, Voice of Vietnam (German) https://youtu.be/nLqm7st730s

Zambia, Voice of Africa https://youtu.be/BqYlMOnzkU0

(Gayle Van Horn W4GVH/

Shortwave Central YouTube https://www.youtube.com/c/ShortwaveCentral

Armstrong Broadcast Returns to New Jersey on June 19

 

The Armstrong Field Lab as it looks today with the original W2XMN building and the radar tower/photo via Radio World

Armstrong Broadcast Returns to New Jersey in June on 42.8 MHz will broadcast from the Alpine Tower for first time in a decade

By Nick Langan 

Published: May 26, 2025-Updated: May 27, 2025

The commemorative Armstrong broadcast station will return next month to 42.8 MHz in the New York City Tri-State area. 

On Thursday, June 19, Steve Hemphill and the staff at the historic Alpine Tower in Alpine, N.J., will celebrate with a commemorative broadcast the 20th anniversary of the Armstrong Memorial event, which Hemphill originally organized in 2005 to honor the man who made FM radio possible, Edwin Armstrong. 

Get Nick's story at: 

https://www.radioworld.com/news-and-business/armstrong-broadcast-returns-to-new-jersey-in-june

he WA2XMN Edwin Armstrong memorial broadcast station, operating on 42.8 MHz, will return to the airwaves on June 19 from Alpine, New Jersey, at 12:00 PM. This station is an experimental FM radio station that broadcasts sporadically from the Armstrong Tower, a site historically significant as the location of the world's first FM broadcast station, W2XMN. 

Iran's IRIB Headquarters Bombed

 

Video via X - 16 Jun 2025

The primary state-run media organization in Iran is the Islamic Republic of Iran Broadcasting (IRIB). It holds a monopoly over domestic radio and television services. IRIB also operates international channels like Press TV (English) and Al-Alam (Arabic)

This is the News - in Morse Code!

 

Another fascinating story from Wavescan - thank you Ray Robinson and jeff White.

Jeff: These days, it’s quite a simple matter to tune in to the many daily bulletins of news, on your car radio as you are commuting to work, on TV in the morning as you are getting ready for work, or in the evening when you are relaxing at the end of the day.  But a century and a quarter ago, if you wanted to acquaint yourself with an update on the latest news events around the world, you would either need to wait for tomorrow’s newspaper, or know how to operate a clumsy wireless receiver, and be proficient in Morse Code.  This week, Ray Robinson has the story of how Morse Code was used by various newspapers in the early 1900’s both to receive and to transmit news bulletins.

Ray: Thanks, Jeff.  First, did you know there have been several versions of Morse Code over the years?  It was in April 1837 that the famous Samuel Morse announced his system of dots and dashes which was a preliminary version of the Morse Code.   Five years later, that original code was amended, and then Morse and his assistant Vail transmitted the first message over a long-distance telegraph line stretching from Baltimore, Maryland to Washington, DC.  This famous message was sent on May 24, 1844 and a Biblical passage was chosen by the daughter of a political patron.  It read: “What hath God wrought?”

Somewhat simultaneously, other inventors in the United States and Europe were experimenting with their own forms of telegraphy and their own systems of dots and dashes for sending messages.  One was Edward Davy in England in 1839, and another was Alexander Bain, also in England some seven years later.

The enterprising Bain actually installed his own competitive telegraph lines in the United States, connecting New York to Boston and Buffalo.  His messages were sent with dots and dashes, not in Morse Code, but in Bain Code.  However, it soon became apparent that the Morse system was superior and Bain dropped out of the picture.

Over in Germany, a man by the name of Steinheil introduced a few variations into Morse Code in 1851, and the German version became known as the Prussian Code. An international telegraph conference in Berlin in the same year, 1851, made a few additional changes to the system of dots and dashes, and this was then accepted as the International Code.

The only alternative system of dots and dashes for sending messages that ever came into wide usage was implemented by the U.S. Navy during World War I.  This new system was used only by the Navy, and it enabled a certain amount of security for the sending of coded messages.

Over the years, all other versions of dots and dashes fell into disuse, including the early Vail-Morse version, and these days only the International Code is used throughout the world, although it is familiarly known simply as Morse Code.

In languages such as, for example, German, Russian or Japanese, additional codes are used for letters that are not found in the English alphabet.  The Japanese form is called Wabun code, which uses the same codes for numbers, but has 48 other codes for the basic Japanese Kana characters.

Well, soon after the invention and development of wireless in the early days of Marconi, the transmission of news and information across the Atlantic began to feature prominently in the commercial business world.  Two leading newspapers in New York City established their own receiving and transmitting stations for the purpose of receiving and disseminating news in the now standard International Morse Code by wireless.

In 1910, the New York Herald established a wireless station in the United States Barge Office at the Battery in New York City under their own informal callsign OHX.

The antenna wires were strung across a busy street between two multi-storey commercial buildings.

This new wireless station received news dispatches, mainly from the British Isles and continental Europe, though also from other parts of the world as well.  In addition, station OHX transmitted wireless news for the benefit of newspapers elsewhere in the United States, and in other overseas countries.

  

As an advertising venture and a service to their land-based readers, on January 16, 1912, the New York Herald sent a bulletin of news in Morse Code to the German passenger liner SS Berlin as it was crossing the Atlantic.  A printing press on board was then used to print the information as a wireless newspaper for the benefit of passengers.

During the era before World War 1, the news items from the New York Herald wireless station were also transmitted from the maritime communication station CC on Cape Cod, Massachusetts and also from the new wireless station at Hillside in San Francisco, California.  In this way, they were able to achieve near global coverage for the dissemination of their news and information.

      

The New York Herald wireless station was first launched on the longwave channel of 640 metres (470 kHz).  The informal callsign OHX was dropped in favor of a regularized callsign WHB in 1913, in accordance with new international regulations governing the wireless spectrum.

  

Not to be outdone, another newspaper in New York City, the New York Times, also established its own wireless station, under the amateur callsign 2UO.  At one stage,

this station was also on the air with a regular bulletin of news in Morse Code for the benefit of an international audience.  However, they found themselves in difficulty due to the fact that they were using an amateur wireless station for a commercial purpose.

Soon after the end of World War 1, in 1919, a commercial company in England began the regular transmission of news bulletins in Morse Code for the benefit of news organizations throughout the world.  These news bulletins were received in the United States, as well as in distant outposts of the British Empire:  India, Australia and New Zealand, and various countries in southern Africa.

The daily news bulletins from the British Official Wireless Press were presented in Morse Code from a new longwave station located at Leafield, in Oxfordshire, England.  These news bulletins from transmitter GBL (for Leafield) with 300 kW on longwave were observed by station VLB at Awarua, at the southern tip of the South Island of New Zealand.

Because of the ability of CW transmissions to cut through atmospherics, interference and sometimes propagation challenges, and because Morse Code transmissions remained intelligible even when voice transmissions were not, the British Official Wireless Press transmissions continued in Morse Code for several decades.  In 1926, the daily news service from London was transferred from Leafield to the large Post Office wireless station at Rugby in Warwickshire, England.  The high powered 350 kW transmitter, now with the call sign GBR (for Rugby) was tuned to the VLF channel of 18,200 metres, just 16 kHz.  Over a period of time, the spark transmitters at Rugby were replaced by glass tube valve transmitters.  During World War II, the news bulletins were subject to censorship, but they were transmitted on several different channels in the 60 metre band, (around 4.8 MHz), under such callsigns as GBU2, GDU2 and GDW2.

The London Press Service was on the air on VLF and then shortwave for a lengthy period of time, 42 years, and it came to an unceremonial end in 1961.

In 1925, for the benefit of ships at sea, the AWA network in Australia began the broadcast of a daily bulletin of news in Morse Code from three of its coastal stations, VIS Sydney, VID Darwin and VIP Perth.  One report (in 1925) tells of how the ship RMS Niagara received these news bulletins every day while on a voyage across the Pacific from San Francisco to Australia.

How fortunate we now are, to be able to watch newscasts with perfect clarity, in full color video, from the other side of the world, whether on land or on cruise ships at sea, thanks to satellite and Internet technology.  It’s just a pity the news itself hasn’t improved in the same way as the technology that carries it.

Back to you, Jeff.

(NWS 851/Ray Robison)

US scrambles to bring back VOA’s Persian service amid Iran-Israel conflict

 

President Donald Trump ordered the service to shut down in March.

By Ben Johansen

06/13/2025 07:51 PM EDT

Employees of Voice of America’s Persian-language service who were sidelined by the Trump administration have been hastily called back to duty as Iran and Israel exchange missile strikes in a high-stakes Middle East conflict.

The U.S. Agency for Global Media told employees placed on administrative leave to immediately return to their roles providing counter-programming to Iranian state media as the conflict between the two nations escalated Friday, according to an email seen by POLITICO and three people familiar with the situation.

Additional story at: 

https://www.politico.com/news/2025/06/13/voa-persian-service-iran-israel-00406092

Weekly Propagation Forecast Bulletins

 Product: Weekly Highlights and Forecasts

:Issued: 2025 Jun 16 0159 UTC

# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center

# Product description and SWPC web contact www.swpc.noaa.gov/content/subscription-services

#

#                Weekly Highlights and Forecasts

#

Highlights of Solar and Geomagnetic Activity 09 - 15 June 2025

Solar activity was at low levels over 09-12 Jun, moderate levels on 13 Jun, and high levels on 14-15 Jun. In total, five R1 (Minor) events and two R2 (Moderate) events were observed this period, the largest of which was an M8.4/1b flare at 15/1807 UTC from Region 4114 (N17, L=34, class/area=Ekc/380 on 15 Jun). Associated with the M8.4 flare were multi-frequency radio bursts, Castelli U signature, an 1800 sfu Tenflare, Type II (397 km/s) and IV radio sweeps. Region 4105 (S15, L=131, class/area=Eki/310 on 14 Jun) produced an M6.8/1n flare at 14/2301 UTC. 

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit was at normal to moderate levels throughout the period. 

Geomagnetic field activity reached active levels on 09 Jun in response to the effects of a CME that left the Sun on 03 Jun, in addition to negative polarity CH HSS influences. Negative polarity CH HSS influences persisted over 10-12 Jun, with quiet to unsettled levels observed on 10 Jun, and periods of active conditions and G1 (Minor) geomagnetic storming observed on 11-12 Jun. Sustained G1-G2 (Minor-Moderate) storm periods were observed on 13 Jun following the arrival of a CME that left the Sun on 08 Jun. Periods of G1 (Minor) storming were observed on 14 Jun as CME effects waned and were followed by the onset of positive polarity CH HSS influences. Positive polarity CH HSS influences continued on 15 Jun with quiet to unsettled levels observed. 

Forecast of Solar and Geomagnetic Activity 16 June - 12 July 2025

Solar activity is likely to range from low to high levels throughout the period. R1-R2 (Minor-Moderate) events are expected, with a chance for R3 (Strong) or greater events, over 16-22 Jun. Region 4114 (N17, L=34, class/area=Ekc/380 on 15 Jun) continues a trend of growth and increasing magnetic complexity, and has the capacity for additional event-level flaring. The greater than 10 MeV proton flux is likely to became enhanced over 16-18 Jun following the M8.4 flare at 15/1807 UTC. No other proton events are expected during the period. 

The greater than 2 MeV electron flux at geosynchronous orbit is expected to reach high levels on 16-22 Jun and 26 Jun-04 Jul. Normal to moderate levels are expected to prevail throughout the remainder of the period. 

Geomagnetic field activity is likely to reach G1 (Minor) storm levels on 15 Jun due to positive polarity CH HSS influences, and again on 25-26 Jun due to negative polarity CH HSS influences. Periods of active conditions are likely on 17 Jun due to positive polarity CH HSS influences, and on 18 Jun due to the anticipated passage of an interplanetary shock as the 15 Jun CME (M8.4 flare at 15/1807 UTC) passes in close proximity to Earth. Active conditions are again likely on 24 and 27Jun due to negative polarity CH HSS influences.

Additional active periods are likely on 01-03 and 05-07 Jun in response to negative polarity CH HSS effects, and over 11-12 Jul due to positive polarity CH HSS effects. Quiet and quiet to unsettled levels are expected to prevail throughout the remainder of the outlook period. 

Product: 27-day Space Weather Outlook Table 27DO.txt

:Issued: 2025 Jun 16 0159 UTC

# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center

# Product description and SWPC web contact  https://www.swpc.noaa.gov/content/subscription-services

#

#      27-day Space Weather Outlook Table

#                Issued 2025-06-16

#

#   UTC      Radio Flux   Planetary   Largest

#  Date       10.7 cm      A Index    Kp Index

2025 Jun 16     150          15          5

2025 Jun 17     145          10          4

2025 Jun 18     140          12          4

2025 Jun 19     140           5          2

2025 Jun 20     140           5          2

2025 Jun 21     138           5          2

2025 Jun 22     135           5          2

2025 Jun 23     125           8          3

2025 Jun 24     125          12          4

2025 Jun 25     130          25          5

2025 Jun 26     125          20          5

2025 Jun 27     125          15          4

2025 Jun 28     120           8          3

2025 Jun 29     115           5          2

2025 Jun 30     115           5          2

2025 Jul 01     115          15          4

2025 Jul 02     110          15          4

2025 Jul 03     110          12          4

2025 Jul 04     110           5          2

2025 Jul 05     115          15          4

2025 Jul 06     120          15          4

2025 Jul 07     130          12          4

2025 Jul 08     140          10          3

2025 Jul 09     145           8          3

2025 Jul 10     150           5          2

2025 Jul 11     155          15          4

2025 Jul 12     160          15          4

(NOAA)