A Sampling of South American Logs on Mediumwave

 Frequency

UTC 

Argentina

540    0216    Radio Nacional, Santa Fe (RG)

840    0053    Radio Salta, Salta (RG)

1070   0136   Radio El Destape, Buenos Aires (RG)

1110   0146   Radio Ciudad, Buenos Aires (RG)

1190   0140   Radio Perfil, Buenos Aires (RG) 

1220   0152   Radio Eco Medios, Buenos Aires (RG)

1230   0157   Radio Dos, Rosario (RG)

1280   0016   Radio Provincia de Buenos Aires, Mar del Plata (RG)

1310   0156   Radio Nacional, Gualeguaychu (RG)

1330   0056   AM 1330, Rosario (RG)

1350   0207   Radio Buenos Aires, Buenos Aires (RG)

1530   0024   Radio Buenos Aires, Buenos Aires (RG) 

Bolivia

1500    0139  Radio Tawantinsuyo, Laja (RG)

1560    0118  Radio Luz del Mundo, la Paz (RG)

1560    0208  Radio Luz del Mundo, la Paz (RG)

Brazil (Portuguese)

1000 Rádio Record, São Paulo, on March 1, 2026, after 97 years of uninterrupted years of radio broadcasting to a large part of the Brazilian territory, officially ended its activity on mediumwave, and following the national program for migrating mediumwave stations to FM, will henceforth operate only on FM 77.1 São Paulo.

550    0232    Rádio Santa Cruz, Santa Cruz do Sul, Rio Grande do Sul (RG)

560    0340    Tua Rádio, Caxias do Sul, Rio Grande do Sul (RG)

590    0136    Rádio Cruzeiro da Bahia, Salvador, Bahia  (RG)

730    1642    Rádio Cidade, Jundial, São Paulo (RG)

810    1603    Rádio Difusora Jundiaiense, Jundial, São Paulo (RG)

820    0033    Rádio Cultura, Foz do Iguaçu, Paraná (RG)

830    0042    Rádio Tropical, Nova Iguaçu,, Rio de Janeiro (RG)

830    1612    Rádio Novo Tempo, Campinas, São Paulo (RG)

870    1622    Rádio Central Campinas, São Paulo (RG)

900    0124    Rádio Difusora Arco-Íris, Araputanga,  Mato Grosso (RG)

960    2331    Rádio Dues e Amor, Aparecida del Goiánia, Goiás (RG)

1010  0301     Rádio Tua Voz, Caixas do Sul, Rio Grande do Sul (RG)

1030  0027     Rádio Difusora, Franca, São Paulo (RG)

1070   1631    Rádio Metropolitana, Mogi das Cruzes, São Paulo (RG)

1080   2349    Rádio Aleluia Brasília, Federal District (RG)

1150   2342    Rádio Cabugi do Serido, Jardim do Serido, Rio Grande do Norte (RG)

1260   2334    Rádio Cultura de São  Borja, Rio Grande do Sul (RG)

1290  0113    Rádio Brasil Sul, Londrina, Paraná (RG)

1290   0195   Rádio Novo Tempo, São José do Rio Preto, São Paulo (RG)

1320   0112   Rádio CBN Foz, Foz do Iguaçu, Paraná (RG)

1320   0117   Rádio Sulbrasileira, Panambi, Rio Grande do Sul (RG)

1370   0130   Rádio Mãe de Dues, Caixa do Sul, Rio Grande do Sul

1380   0916   Rádio Cidade, Brazópolis, Mato Grosso (RG)

1410   0200   Rádio Santa Rosa, Santa Rosa, Rio Grande do Sul

1420    0124  Rádio Guarujá, Florianópolis, Santa Catarina (RG)    

1490    0123  Rádio Difusora, Olímpia, São Paulo (RG)

1520   Rede Aleluia, Sorocaba,  São Paulo (RG)

1530    0104   Rádio Sulina, Dom Pedrito, Rio Grande do Sul (RG)

Colombia

570     0115    Radio Nacional, Bogotá (SW)

600   0130   Radio Libertad, Barranquilla (SW)

620    0125   Radio Colmundo Radio, Cartagena (SW)

Paraguay

560    0009    Radio Regional, Concepcion (RG)

570    0237    Radio Amambay, Pedro Juan Caballero (RG) 

680    0000     Radio Caritas, Nemby (RG)

920    0037    Radio Nacional de Paraguay, Asunción (RG)

1080   2346   Radio Monumental, Chacoi (RG)  

1140   2330   Radio Central Radio, Ypane (RG)

1330   0202   Radio Chaco Boreal, Asunción (RG)

1420   0212   Radio Guyra Campana, Horqueta  (RG)

Peru

750    0105    Radio Altura, Cerro de Pasco (SW)

790    0705    RDP Noticias, Trujillo (SW)

Uruguay

610   0602    Radio Rural, Santiago Vázquez (RG)

1010  0120   Radio Carve Deportiva, Montevideo (RG)

1050  0131   Radio Uruguay, Montevideo (RG)

1090  0141   Radio María Uruguay, Montevideo (RG)

1130  2336   Radio Nacional, Santiago Vázquez (RG)

1160  2140   Radio Agraria del Uruguay, Cervo Chato (RG)

1170  2146    Radiomundo, Montevideo (RG)

1280  0203   Radio Tacuarembó, Tacuarembó (RG)

1430  0016   Radio  Durazno, Durazno (RG)

1510  0114   Radio San Carlos, San Carlos (RG)

1580  0038   Emisora del Este, Minas (RG) 

Venezuela

670   2355  Radio Rumbos, Caracas (VH)

860   2300  Radio Enlace, Valle de la Pascura (VH)

(SM) Sam Wright, MS)

(RG/Rudolph Grimm, São Bernardo, São Paulo, Brazil)

(VH) Gayle Van Horn, LA)

Wavescan presents, Mary Texanna Loomis, Radio Pioneer

 Special thanks to the Wavescan staff for this week's feature from a Texas radio pioneer

Jeff:   Most features we present on the history of broadcast radio, and shortwave in particular, seem to feature men.  But we would be remiss in not mentioning that there were also a number of female pioneers involved in the early days of radio, and today, Ray Robinson in Los Angeles has the story of one of them.

Mary Texana Loomis and one of her transmitter projects

Ray:  Thanks, Jeff.  Yes, today’s feature is about Mary Texanna Loomis, who in 1920 founded the Loomis Radio School in Washington, D.C.  This topic was suggested by Wavescan listener Martin Dawson on Prince Edward Island in Canada, after he had read an old article in Radio World which in turn had been sourced from articles in several old magazines and newspapers of the 1920s and 30’s.

In the 1920s, if you wanted to get a job in America as a commercial radio operator or a shipboard radioman on an American vessel, you needed a Commercial Radio License, issued by the U.S. Department of Commerce.  The best way to obtain such a license was to attend one of the few radio schools that operated in principal cities around the United States.  Two of the most distinguished schools were in Washington, D.C.:  the National Radio Institute and the Loomis Radio School.  The latter was the only woman-owned radio school in the country.  Mary Texanna Loomis was the principal instructor and that rare creature in the 1920’s:  a female authority on radio.

Mary was a distant cousin of Dr. Mahlon Loomis, who in 1866 had experimented with ‘stealing current from the atmosphere’ using kites and metallic string.  In one experiment, he flew kites from two peaks of the Blue Ridge Mountains in Virginia and, using a galvanometer, was able to detect a change in current in one kite when he grounded the line of the other.  Subsequently, he was able to send Morse Code messages between the two locations, a distance of 18 miles.  And that experimentation in wireless communication took place a full nine years before Guglielmo Marconi was even born.

Mary Texanna Loomis was born on August 18, 1880, in a homesteader’s shack near Goliad, Texas, the second child of Alvan and Caroline Loomis.  Her middle name, ‘Texanna’, was bestowed in honor of the state where she was born.

Mary Texanna Loomis

The family moved to Rochester, N.Y., in 1883, where she had a respectable middle-class upbringing.  She was sports-minded in her youth, participating in swimming and horseback riding.  She also took voice lessons and became a good soprano.  She learned to speak three languages:  French, Italian and German.  A grandfather was a strong influence; he taught her to use tools and to build mechanical devices, and he helped develop her interest in science and the new inventions of the industrial age.

Mary Loomis married Turner Erving Howard in October, 1898, in Buffalo, NY.  Sadly, the marriage ended in divorce in 1917, and there’s no record that they had any children.  Mary then reverted to her maiden name of Loomis.

After her divorce, Mary moved to Washington, where she looked unsuccessfully for music employment.  But her life took a new turn when she attended a lecture on the emerging technology of wireless communication.  Fascinated, she read everything she could find on the subject.  At the age of 38, at a time when radio was the field of only a few experimenters and inventors, most of them men, she graduated from radio school and earned her first-class radio telegraphy license.

During World War I, she worked for the Red Cross and also as a secretary in a wireless school.  It was only then that she learned about the experiments of her distant cousin, Mahlon Loomis, and she resolved to open a radio operator’s school in his honor.

In 1920, she invested every cent she had and incorporated the Loomis Radio School. Located at 401–411 Ninth Street in the northwest quadrant of Washington, D.C., it offered a six-month course preparing students for the first-class commercial radio license exam.  Most students who graduated found positions as shipboard radio operators.  Loomis was the school’s president and principal lecturer.  She taught radio using equipment she constructed herself in the school’s machine shop, and taught her students not only how to operate, but also how to build radio equipment.  “No man can graduate from my school until he learns how to make any part of the apparatus,” she said.  “I give him a blueprint of what I want him to do and tell him to go into the shop and keep hammering away until the job is completed.  I want my graduates to be able to meet any emergency or mishap that may arise someday far out on the sea.”

The Loomis Radio School in Washington, D.C.

She lived a frugal life in a boarding home, and worked 12 to 15 hours a day teaching, grading papers and writing.  In time, the Loomis Radio School offered four courses, with the main one (for would-be commercial radio operators) leading to a first-class commercial radio operator's license.  A second course for technical training taught how to build a receiving set.  A third course led to a license as an amateur radio operator, and the fourth was for operators who needed only to renew an expired license or who had been military operators and needed only minimal training.

Her students also gained practical experience operating a radio transmitter through the use of the school’s amateur station, W3YA.  Loomis was a noted lecturer and member of the prestigious Institute of Radio Engineers.  She authored and marketed the popular book “Radio Theory and Operating for the Radio Student and Practical Operator.”  This was a reference text of 886 pages with 700 illustrations.  It was advertised at a reasonable price and was offered postage-paid directly by the school.  It subsequently became a textbook used by many educational institutions and government agencies.

By 1928, the Loomis textbook was in its fifth edition, then amounting to 1,006 pages.  “Radio Broadcast” Magazine called it “one of the most comprehensive volumes in its field.”  Mary dedicated her book to her cousin Mahlon Loomis.

Loomis teaching a class of future radio operators

The depression that began in 1929 affected the school severely, as it did tens of thousands of other businesses.  Fewer students could afford the training, and larger schools like the National Radio Institute had more resources to weather the hard times.  Further, a new competitor, the Capitol Radio Institute, would open in Washington in 1932.  In 1930, Loomis reorganized the school as the Loomis Radio College, Inc., but it was dissolved in early 1933.

Not much is known about Mary’s later life.  She is known to have relocated to San Francisco in 1938; the census shows that she lived in the St. Francis Hotel and listed her occupation as a stenographer.  Mary Texanna Loomis died in that city in June 1960 at the age of 79, and was buried at the Woodlawn Memorial Park in Colma, California.

Back to you, Jeff.

Jeff: Thanks, Ray.  And in a few weeks’ time, Ray will have a story about another woman who was active in early radio – Mary Day Lee.

(Wavescan/Ray Robinson)

Weekly Propagation Forecast Bulletins

 Product: Weekly Highlights and Forecasts

:Issued: 2026 Jun 08 0243 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 01 - 07 June 2026

Solar activity reached high levels on 03 Jun when Region 4455 (N14, L=88, class/area=Dki/360 on 03 Jun) produced an M9.3/Sf flare (accompanied by Type-II (253 km/s) and Type-IV sweeps, and a 360 sfu Tenflare) at 03/0136 UTC, followed by an M7.7/1b flare (accompanied by Type-II (313 km/s) and Type-IV radio sweeps, and a 540 sfu Tenflare with Castelli-U signature) at 03/0700 UTC, and finally an

X1.0/1n flare (accompanied by a Type-IV sweep and a 180 sfu Tenflare) at 03/1128 UTC. The CMEs associated with the three significant flares from AR4455 on 03 Jun arrived at Earth on 05 Jun.

Other activity included an M1.8/2n (accompanied by Type-II (838 km/s) and 190 sfu Tenflare) flare at 06/1401 UTC from Region 4461 (S20, L=09, class/area=Dao/70 on 02 Jun). The resulting partial-halo

CME, first visible in LASCO C2 imagery at 06/1401 UTC, is anticipated to arrive at Earth around midday on 08 Jun. 

The greater than 10 MeV proton flux became slightly enhanced after midday on 06 Jun, following the M1.8/2n flare at 06/1401 UTC from Region 4461, but remained below event levels with a peak flux of 1.0 pfu observed at 06/1940 UTC. The greater than 10 MeV proton flux gradually returned to background levels on 07 Jun. 

The greater than 2 MeV electron flux at geosynchronous orbit was at normal to moderate levels on 01-05 Jun, with high levels observed on 06-07 Jun. 

Geomagnetic field activity reached G1-G2 (Minor-Moderate) storm levels on 05 Jun, and active levels on 06 Jun, following the arrival and passage of the CMEs from 03 Jun. The shock arrival was observed

beginning at around 05/0425 UTC, and in the hours following, the total magnetic field strength (Bt) reached 20 nT, the Bz component reached as far southward as -17 nT, and solar wind speeds increased

to a peak near 740 km/s. Quiet and quiet to unsettled levels under weak coronal hole high-speed stream influences prevailed throughout the remainder of the period. 

Forecast of Solar and Geomagnetic Activity 08 June - 04 July 2026

Solar activity is expected to be at predominantly low levels through 04 Jul, with M-class flare probabilities ranging from a chance to likely levels throughout the period. 

No proton events are expected at geosynchronous orbit, barring significant flare activity. 

The greater than 2 MeV electron flux at geosynchronous orbit is expected to reach high levels on 09-10, 13-18 Jun and 04 Jul. Normal to moderate levels are expected to prevail throughout the remainder

of the period. 

Geomagnetic field activity is likely to reach G1-G3 (Minor-Strong) storm levels on 08 Jun, with G1-G2 (Minor-Moderate) levels likely on 09 Jun, due to the anticipated arrival of the CME that left the Sun

on 06 Jun. Periods of active conditions are likely on 23-26 Jun due to recurrent CH HSS influences. Quiet and quiet to unsettled levels are expected to prevail throughout the remainder of the period. 

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

:Issued: 2026 Jun 08 0244 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 2026-06-08
#
#   UTC      Radio Flux   Planetary   Largest
#  Date       10.7 cm      A Index    Kp Index
2026 Jun 08     135          50          7
2026 Jun 09     132          32          6
2026 Jun 10     130          12          3
2026 Jun 11     130          15          3
2026 Jun 12     128          10          3
2026 Jun 13     128           6          2
2026 Jun 14     120           6          2
2026 Jun 15     118           8          3
2026 Jun 16     120           8          3
2026 Jun 17     122           5          2
2026 Jun 18     122           5          2
2026 Jun 19     125           5          2
2026 Jun 20     125           5          2
2026 Jun 21     128           8          3
2026 Jun 22     130           8          3
2026 Jun 23     132          10          4
2026 Jun 24     134          15          4
2026 Jun 25     134          15          4
2026 Jun 26     132          15          4
2026 Jun 27     130          10          3
2026 Jun 28     132           8          3
2026 Jun 29     130           6          2
2026 Jun 30     128           8          3
2026 Jul 01     125           5          2
2026 Jul 02     130           5          2
2026 Jul 03     128          12          3
2026 Jul 04     125           8          3
(NOAA)

Audio available for Jen's Eclectic Views & Real Deal from June 7

 

No worries if you missed the June 7 broadcast of Jen's Eclwtic Views and Real Deal!

Audio is now available for download and listening at: 

https://www.dropbox.com/scl/fi/49941icqrmhpk519arym3/Jen-s-Electic-Views-Real-Deal-For-May-.31st-17-20-heard-on-Unique.mp3?rlkey=x1kr7b44ax50huj98h51tpu3w&dl=0

Tiny URL:  https://tinyurl.com/43y68px6

Tune in to Jen's Eclectic Views & Real Deal program on June 7

 

Don't miss it !!

Sunday, June 7, 2026

17:00 - 20:00 UTC

Live Stream.

http://uk4-vn.mixstream.net:8104/index.html

For contact pleasure.

JenUR@proton.me

Thanks.

Jen In The RAD

Texas Radio Shortwave, June 6, 7-2026

 

UTC/kHz

Saturday, June 6, 2026

1400-1500,  6160 Shortwave Radio Gold to Europe - Michael Strah, Texas Radio Shortwave presents, The Music of Jimmie Vaughn

1800-1900,  3975, 6160 Shortwave Radio Gold to Europe - Michael Strah Texas Radio Shortwave presents, The Music of Jimmie Vaughn

Sunday, June 7, 2026

1200-1300, 9670 Channel 292 to Europe - Michael Strah Texas Rado Shortwave presents, The Music of Jimmie Vaughn

2300-0000, 9670  Channel 292 to North America - Michael Strah, Texas Radio Shortwave presents, The Music of Jimmie Vaughn

This schedule is subject to change based on listener requests for specific Texas artists or music genres, propagation conditions, and other things beyond our control.

Texas Radio Shortwave is an independent producer of musical and topical shows, usually about Texas.

Unless otherwise shown, programs are one hour long.

Programs for Europe (Eur) and beyond on 3975 and 6160 kHz over Shortwave Radio Gold in Winsen, Germany, are transmitted with 1 kW into crossed dipole antennas.

Programs for Europe (Eur) and beyond on 6070 and 9670 kHz over Channel 292 in Rohrbach, Germany, are transmitted with 10 kW into an inverted V antenna.

Programs for North America (NAm) and beyond on 9670 kHz over Channel 292 are transmitted with 10 kW into a 10.5 dB gain beam antenna.

Texas Radio Shortwave uses a version of The Yellow Rose of Texas as its Interval Signal/Signature Song.

Texas Radio Shortwave verifies correct, detailed reception reports by electronic QSL. This includes reports from listeners using remote receivers (SDRs). Texas Radio

Shortwave's email is texasradioshortwave@protonmail.com.

Many TRSW programs are archived at www.mixcloud.com/texasradiosw.

Texas Radio Shortwave's Facebook page is www.facebook.com/texasradiosw.

Texas Radio Shortwave's Listeners' Group Facebook page is www.facebook.com/groups/580199276066655/.

(TRSW)

(photos via Wikipedia) 

(TRS graphics by Gayle Van Horn)

Memories of BFBS Singapore

 

This edition first aired on July 23, 2000

Back in the year 1971, I was on a motor launch in Bangladesh. There had been a horrendous, devastating cyclone in the Bay of Bengal. It is calculated that one million people lost their lives in this overnight cyclone, thus making it the worst natural disaster on earth since Noah's Flood. At the time, I was on temporary loan to ADRA, the Adventist Development and Relief Agency, and we were in the delta areas of Bangladesh carrying relief supplies of food and basic living needs to the homeless survivors.

One afternoon, while the motor launch was travelling from one location to another, I was tuning across the shortwave bands on my Grundig radio when I was very surprised to hear the BBC World Service news in the 60 meter tropical shortwave band. On checking the WRTVH, I discovered that I was listening to BFBS Singapore, the British Forces Broadcasting Service, with 10 kw on 5010 kHz.

On a subsequent visit to Singapore a few years later, I took a taxi one humid rainy day to the British Army base on the outskirts of Singapore City. Even though this was a high security area, I was courteously granted approval to make a visit to BFBS Radio. As I approached the building, I was dismayed to discover that workmen were in the process of dismantling the station. They were removing all of the electronic equipment and refurbishing the building for use as an office.

As I walked through the empty rooms, I visualized what used to be. I saw the old studios and control room, the offices and tape library, of what used to be BFBS Singapore. Obviously, when this station was on the air it was an efficient and modern radio station.

BFBS Singapore was launched in early 1953 with a 10 kW transmitter operating at 7.5 kw. It was on the air on the constant frequency of 5010 kHz in two languages, English and Ghurka. Some 10 years later, a 5 kW FM transmitter was added.

BFBS Singapore had a reputation as an excellent verifier, and the AWR historic collection in Indianapolis contains two QSL cards confirming the reception of both the shortwave and FM transmitters.

In mid-1971, the British Army base was handed over to the Singapore army. The FM transmitter at this location was given to the BBC, which operated it by remote control. The shortwave transmitter was located at Jurong, near the famous bird park, and it was donated to Radio Singapore, which operated it for many years in parallel with their other 60-meter band outlet on 5052 kHz.

As I walked down the stairway and out of the two-story building, I cast a backward glance at the signboard, which read, "British Forces Broadcasting Service, Singapore."

So "What Happened to them Afterwards?" Well, the studio building became an office for officers in the Singapore Army. Both the shortwave and FM transmitters have long since been removed and junked. All that remains these days are the DX reports in old radio magazines, a cluster of QSL cards in old QSL collections, and the memories in the lives of the staff who were on the air with what was BFBS Singapore.

(A Peterson/Wavescan)

New U.S. Radio Show Seeks to Foster Civil Discourse on Constitutional Issues

 

from the WRMI Facebook page

"America@250: Due Diligence" to debut this weekend on about 50 radio stations

IRONDALE, ALABAMA — No hot takes. No name-calling. That is the self-imposed guidance for a new, 

limited-run weekend one-hour radio show/podcast, America @ 250: Due Diligence.

The public service program will put into historical context key Constitutional issues being debated in American society with experts from across the political spectrum as featured guests.

The program will be co-hosted by two broadcast veterans, Steven L Herman, who is executive director of the Jordan Center for Journalism Advocacy and Innovation at the University of Mississippi, and Illinois-based radio talk show producer Bill Bernardoni.

Herman is a former White House bureau chief of the Voice of America. Bernardoni’s background includes work as a campaign manager and political consultant for candidates from the state to national level.

“At a time when discourse on our airwaves is often dominated by the desire to divide, America @ 250: Due Diligence offers a refreshing remedy rooted in deep research, historical context and civil conversation,” said Dr. Andrea Hickerson, dean of the School of Journalism and New Media at the University of Mississippi. “The program fosters discussion to expand civic literacy to create a more informed electorate.”

America @ 250: Due Diligence will begin airing on about 50 AM and FM radio stations from the first weekend in June with distribution via Talk Media Network, the Public Radio Exchange (PRX), the Radio Free America project and commercial shortwave broadcaster WRMI-Radio Miami.

“There are few issues-oriented or public affairs radio programs independently produced that are free of intended political bias,” said Herman, who formally announced the launch of the program in a presentation on May 28th at the annual meeting of the National Association of Shortwave Broadcasters in Alabama. “We hope more radio stations with a sincere interest in objectively informing the electorate will carry the program.”

America @ 250: Due Diligence will continue through the end of this Semiquincentennial year and a weekly online extended version will be on podcast distribution platforms.

WRMI will air "America@250: Due Diligence" on shortwave each week, beginning Saturday June 6th at 8:00 pm Eastern Time (that's 0000 UTC Sunday June 7th) on 9395 kHz going north and 5050 kHz beaming south.   Your reception reports are welcome and will be answered with a special America@250 QSL card.  Reports can be sent to info@wrmi.net.

Weekly Propagation Forecast Bulletins, June 1, 2026

 Product: Weekly Highlights and Forecasts

:Issued: 2026 Jun 01 0157 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 25 - 31 May 2026

Solar activity reached moderate levels on 29 May when Region 4455 (N15, L=83, class/area=Eko/370 on 29 May) produced an M1.1/Sf flare at 29/0704 UTC; the largest flare of the period. Solar activity was low with C-flare activity observed throughout the remainder of the week. 

The greater than 10 MeV proton flux became enhanced late on 25 May following an eruption from beyond the NW limb. The greater than 10 MeV proton flux exceeded S1 (Minor) levels at 26/0010 UTC, and reached a peak flux of 2,380 pfu at 26/0110 UTC before decreasing below S1 levels by 26/0540 UTC. The greater than 100 MeV proton flux also became enhanced following this event, but did not exceed alert threshold. 

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

Geomagnetic field activity reached unsettled levels on 25 and 27 May, with active levels observed on 26, and 28-31 May, as negative polarity CH HSS influences prevailed throughout the period. 

Forecast of Solar and Geomagnetic Activity 01 June - 27 June 2026

Solar activity is expected to be at predominantly low levels throughout the outlook period, with a chance for M-class (R1-R2/Minor-Moderate) flare activity. 

No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is expected to reach high levels on 12-20 Jun, with normal to moderate levels likely throughout the remainder of the period. 

Geomagnetic field activity is likely to reach G2 (Moderate) storm levels on 11 Jun, with G1 (Minor) storming likely on 12 Jun, due to negative polarity CH HSS influences. Active conditions are likely on 01, 03-05, 13-14, and 23-27 Jun due to multiple recurrent CH HSSs. Quiet and quiet to unsettled conditions are expected to prevail throughout the remainder of the outlook period. 

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

:Issued: 2026 Jun 01 0157 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 2026-06-01

#

#   UTC      Radio Flux   Planetary   Largest

#  Date       10.7 cm      A Index    Kp Index

2026 Jun 01     135          10          4

2026 Jun 02     135           8          3

2026 Jun 03     130          14          4

2026 Jun 04     130          12          4

2026 Jun 05     125          10          4

2026 Jun 06     125           8          3

2026 Jun 07     125           5          2

2026 Jun 08     120           5          2

2026 Jun 09     120           5          2

2026 Jun 10     130           5          2

2026 Jun 11     135          30          6

2026 Jun 12     135          25          5

2026 Jun 13     130          12          4

2026 Jun 14     130          10          4

2026 Jun 15     140           8          3

2026 Jun 16     140           5          2

2026 Jun 17     150           5          2

2026 Jun 18     155           5          2

2026 Jun 19     160           5          2

2026 Jun 20     160           5          2

2026 Jun 21     165           8          3

2026 Jun 22     160           8          3

2026 Jun 23     155          10          4

2026 Jun 24     145          15          4

2026 Jun 25     145          15          4

2026 Jun 26     150          15          4

2026 Jun 27     150          15          4

(NOAA)

The Adelaide River Story

 

Adelaide River via Wikipedia

Thank you to Ray Robinson and Jeff White for this week's feature - we love nostalgia!

Jeff: In our feature in Wavescan today, Ray Robinson brings together four unusual but quite fascinating items of information, under the title, "The Adelaide River Story":

• a large temporary American city in Australia's Outback 

• an American radio station in Australia with a foreign callsign 

• an undetected Australian radio station, and 

• the ‘jumping alligator’!

So, Ray, tell us more!

Ray: Thanks, Jeff.  Yes, the river called Adelaide River is in Australia, but it’s nowhere near the city of Adelaide.  Instead, it’s right at the northern tip of the country in the Northern Territory, and is a short but broad river, just 148 miles long.  It’s navigable for 3/4 of its length and it runs from south to north, emptying into the Van Diemen Gulf about 20 miles east of Darwin.  But like the city of Adelaide, the Adelaide River was named in honor of Queen Adelaide of England, the aunt of Queen Victoria.  Adelaide was a German princess who, as the wife of King William IV, not only became queen of Great Britain and Ireland from 1830-1837, but was also queen of the German state of Hanover.  Adelaide and William had no surviving children, so when William died of heart failure in 1837, their niece, Victoria, became the new monarch.

Now, on the Adelaide River is a town by the same name, Adelaide River, which is a small settlement approximately 70 miles south of Darwin.  Originally, the area was inhabited by the nomadic Kungarakan and Warai Aborigines.  In 1871, a small settlement was established for workers who were installing the overland telegraph that connected the north to the south of Australia.  Two years later, a small store and cafe were opened at Adelaide River, and 15 years later again, the railway line from Darwin reached the little settlement.

During World War II, just four days after the fall of Singapore in February 1942, the Japanese launched two separate air raids against the town of Darwin, the Allied shipping in Darwin harbor, and the town’s two airfields.  Panic-stricken residents and forces personnel fled to the town of Adelaide River, overrunning the area, which quickly became the headquarters of the Australian army in the Northern Territory.

The purpose of the air raids had been to prevent the Allies from using Darwin as a base from which to contest the Japanese invasion of Timor and Java, not far off the northern coast of Australia.  So quite soon afterwards, American personnel began to flood into the area, until, at the height of their activities in Australia, some 30,000 Americans were encamped at Adelaide River.  They brought with them all that was necessary to sustain life and activity in the area, and this included their own hospital, food preparation, living quarters, and all of the necessary hardware to defend Australia's northern border with Asia.

It is understood that the American camp at Adelaide River was the largest single concentration of American personnel anywhere in Australia.  It was indeed a temporary American city, if you please, in Australia's great outback.

There was a need for a major radio station at Adelaide River for long-distance communication and so a search began in January 1943 for a suitable location.  A site was chosen a couple of miles northeast of the town on a huge cattle ranch called Mt. Bundy Station, and U.S. Navy personnel began construction work for the new project.  In less than two months, on March 25, 1943, the communication radio station became operational, with several shortwave transmitters in the range of 10 kW.

Interestingly, this new shortwave radio station was identified on air using the callsign KAZ.  The callsign KAZ was not an Australian callsign, nor an American continental callsign, but rather it was borrowed from the Philippines, which, before the war, had been an American territory.  The callsign KAZ had previously been used by the RCA communication station on the outskirts of Manila from 1930 until the end of 1941.

The decision to use this same callsign, KAZ, in Australia for the large radio communication station at Adelaide River was apparently made by General Douglas MacArthur, partly to confuse unwanted listeners in Asia as to the actual location of the station, and also to indicate a close link with the Philippines.

The Adelaide River station was in frequent communication with other American stations throughout Australia and also in the islands north of Australia.  This station communicated regular forces information, and also the flow of news that was subsequently released for use on radio and in newspapers in Australia and the United States.  During its 1½ years on the air, station KAZ in Australia was also in frequent communication with small groups of people in the Philippine islands.

As decisive events in the Pacific began to move north away from Australia, American personnel moved out of the area, and the main traffic through station KAZ at Adelaide River was transferred to Hollandia in Dutch New Guinea on November 21, 1944.  The shortwave station at Adelaide River remained on the air for almost another year, with the American Seabees (the U.S. Naval Construction Forces) installing their own small communication station at the same location a few months before the entire facility was closed.

The Mt. Bundy Cattle Station itself is now a tourist resort, and the few remains of the U.S. Navy communication station KAZ are simply historic reminders of an important era in the state's illustrious past.

But we should also mention that there was an Australian entertainment radio station on the air at Adelaide River.  In March 1944, a request was made to Australian Army headquarters in Melbourne, and approval was granted.  A small station was installed, apparently running just 20 watts on 1440 kHz.  This new radio station was inaugurated in May 1944 under the callsign 5DR.  The transmitter was provided by the PMG Department, and programming was provided by Army personnel with frequent relays taken off-air from shortwave stations operated by the ABC.  This temporary station was on the air for a period of around six months, but it remained completely undetected by any radio monitors in Australia and New Zealand.

In October of the same year, work commenced on a new and more substantial broadcasting station at Adelaide River, but the project was abandoned just before it was completed; most of the personnel had moved away from the area and the station was no longer needed.  In time, another 5DR medium wave station was erected in Darwin itself, and this call was subsequently amended to 8DR, with shortwave coverage later being added for outback areas in the Northern Territory.

The glory days of the town of Adelaide River with its huge population base, are long since gone.  These days, local surveys tell us that the town of Adelaide River has a population of just 190 people, but it does possess a major tourist attraction.  Travelers passing through the area like to stop at Adelaide River and go for a cruise on the river itself.  The attraction is the unique freshwater jumping crocodile.  This species obligingly will jump 8-10 feet out of the water to catch food suspended from poles by the captains of passing tourist boats.  There are 5 different companies operating on the Adelaide River offering tours for people to see the unique jumping crocodiles, the most famous of which is the Adelaide River Queen.

(Ray Robinson/Wavescan 31 May 2026)

Back to you Jeff ....

For an audio clip of  – Adelaide River Queen, go to this week's edition at: 

https://www.podomatic.com/podcasts/wavescan/episodes/2026-05-30T17_00_00-07_00

Jen's Eclectic Views & Real Deal audio for May 31, now available

 

No problem if you missed Jen's Eclectic Views & Real Deal on May 31, 2026. Audio is now available for listening and downloading.

Tune in at: 

https://www.dropbox.com/scl/fi/49941icqrmhpk519arym3/Jen-s-Electic-Views-Real-Deal-For-May-.31st-17-20-heard-on-Unique.mp3?rlkey=x1kr7b44ax50huj98h51tpu3w&dl=0

Tiny URL:   https://tinyurl.com/43y68px6

For contact pleasure.

JenUR@proton.me

Thanks.

Jen In The RAD