http://www.rhci-online.net/radiogram/radiogram.htm

https://github.com/GyanD/codexffmpeg/releases/tag/2023-03-05-git-912ac82a3c

set MyFiles=*.flac *.fla *.wav *.aif *.mp4 *.mp3 *.mp2 *.aac *.ogg *.m4a
for %%a in (%MyFiles%) do ffmpeg -i "%%a" -y -lavfi showspectrumpic=s=1920x1080:color=fiery:gain=.7:fscale=lin:orientation=0:saturation=1:mode=combined:legend=enabled:start=0:stop=8000 "%%~na.jpg"

RSID: <<2025-04-24T23:31Z MFSK-32 @ 9265000+1500>>
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Welcome to program 399 of Shortwave Radiogram.

I'm Kim Andrew Elliott in Arlington, Virginia USA.

Here is the lineup for today's program, in MFSK modes as noted:

  1:46 MFSK32: Program preview (now)
  3:06 MFSK32: Digital Radio Mondiale shortwave learning event*
10:12 MFSK64: Judge halts Trump's shutdown of Voice of America
12:46 MFSK64: This week's images
27:42 MFSK32: Closing announcements

* Same as last week's DRM story, including the triangle image, but
this time in MFSK32

 

Please send reception reports to radiogram@verizon.net

And visit http://swradiogram.net

We're on Bluesky now: SWRadiogram.bsky.social

And X/Twitter: @SWRadiogram

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Digital Radio Mondiale press release:

Digital Radio Mondiale DRM Delivers Distance Education – An
Excellent First for Africa and the World

April 10, 2025

The DRM Consortium, in cooperation with St Joseph's Senior
Secondary School in the Gambian capital, Banjul, has conducted
its first public demonstration of an innovative project to
deliver education at a distance via radio on April 8th.

In a Gambian, African and world first for digital radio, a maths
lesson from the Encompass Media Services Woofferton transmitting
station in the UK was broadcast (on 15390 kHz and 21740 kHz),
over 4,000 kilometers to The Gambia. A group of 15-year-old
students received audio and text lessons transmitted via DRM
shortwave. The content was made available to their tablets,
mobiles through a local Wi-Fi connection to the radio.

The demonstration showcased the ability of DRM digital radio to
deliver lessons in multiple languages as the key audio lessons
were in English followed by two AI-generated versions in French
and German.

A central component of the broadcast, alongside the audio, was a
digital textbook (Journaline), showcasing how the lesson content
— including graphics — can be made available in several
languages, both as a live accompaniment and for on-demand access.

The on-demand use for the distance transmitted lessons (the
cached lessons) was shown at the public event held at the St
Joseph's Senior Secondary School in the presence of other
students, teachers, VIPs and the press.

As the technology only requires a single transmitter thousands of
miles or kilometres away, the lessons can be delivered entirely
remotely or supported by teachers locally; this proved that
educational content can be delivered, without the need of IP or
internet.

The revolutionary new application of Digital Radio Mondiale (DRM)
technology is designed to remove barriers to education for
populations most in need worldwide. The technology also has
applications in areas such as medicine and religious education.

The tablets used for this e-learning demonstration were donated
to the school in Banjul as part of the commitment to supporting
continued learning and access to technology by the DRM Consortium
and the key members which supported this ground-breaking
demonstration.

Full text:
https://www.drm.org/digital-radio-mondiale-drm-delivers-distance-education-an-excellent-first-for-africa-and-the-world/
 

On Shortwave Radiogram, we can also transmit lessons for schools
outside the reach of the internet. We can't transmit voice like
DRM does, but we can transmit text, and we can transmit the image
of a triangle. And all of this can be received in reception
conditions in which the DRM signal may drop out.

The subject of the DRM transmission was triangles. Here is our
lesson on triangles ...

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If we, in the following triangle, draw the altitude from the
vertex of the right angle, then the two triangles that are formed
are similar to the triangle we had from the beginning. The two
triangles formed are also similar to each other.
 

RSID: <<2025-04-24T23:38ZMFSK-32 @ 9265000+1500>>

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△ABC ∼ △BCD ∼ △ABD

The measure of the altitude drawn from the vertex of the right
angle to the hypotenuse is the geometric mean between the
measures of the two segments of the hypotenuse. Hence BD is the
geometric mean of AD and DC.


Shortwave Radiogram now changes to MFSK64 ...



 

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This is Shortwave Radiogram in MFSK64

Please send your reception report to radiogram@verizon.net
 

From the BBC:

Judge halts Trump's shutdown of Voice of America

Kayla Epstein
April 22, 2025

A federal judge has ordered the Trump administration to restore
all jobs and funding for the Voice of America and other US-backed
news outlets, ruling that efforts to dismantle it violated the
law and Constitution.

Over 1,300 VOA employees, including about 1,000 journalists, were
placed on leave following President Donald Trump's order. The
White House has accused the broadcaster of being "anti-Trump" and
"radical".

VOA, still primarily a radio service, was set up during World War
II to counter Nazi propaganda, and has become a major global
media broadcaster.

The ruling noted that because of the cuts, "VOA is not reporting
the news for the first time in its 80-year existence".

Judge Royce Lamberth said the administration acted "without
regard to the harm inflicted on employees, contractors,
journalists, and media consumers around the world".

He ordered the administration to take steps to restore employees
and contractors to the jobs they had prior to the executive
order, and to do the same for Radio Free Asia and the Middle East
Broadcasting Networks.

The judge found the administration also likely violated the
International Broadcasting Act and Congress' power to appropriate
funding.

"My colleagues and I are grateful for this ruling. But we know
that this is just a small step forward, as the government is
likely to appeal," said Patsy Widakuswara, the VOA White House
bureau chief and a lead plaintiff in the lawsuit.

"We are committed to continuing to fight against what we believe
is the administration's unlawful silencing of VOA until we can
return to our congressional mandate: to tell America's stories
with factual, balanced, and comprehensive, reporting," she said.

Trump has long criticised VOA as part of his broader attacks
against the media, frequently accusing mainstream outlets of
bias.

After taking office in January, he appointed a political ally,
Kari Lake, to run VOA. Lake has previously supported Trump's
false claims that the 2020 election was stolen from him.

In March, Trump ordered the US Agency for Global Media (USAGM),
which oversees VOA and funds outlets like Radio Free Europe and
Radio Free Asia, to be "eliminated to the maximum extent
consistent with applicable law".

A separate judge in New York temporarily blocked the executive
order after journalists, advocacy groups and unions sued, arguing
the move was unlawful.

Judge Lamberth, who is based in Washington, DC, ruled the Trump
administration lacked the authority to shutter VOA, which is
funded by Congress and has a legislative mandate to deliver
credible news globally.

"It is hard to fathom a more straightforward display of arbitrary
and capricious actions than the Defendants' actions here," he
wrote.

USAGM and the White House did not immediately respond to a
request for comment.

https://www.bbc.com/news/articles/c0jz58zjllzo
 

This is Shortwave Radiogram in MFSK64

Please send your reception report to radiogram@verizon.net
 

This week's images ...


A Least Grebe, usually not more that 25 cm long, at Três Picos
State Park, Brazil. tinyurl.com/29rawczj ...

Sending Pic:175x179C;








A bicycle ready for a trail at Codorus State Park in
Pennsylvania, not far from our WINB transmitter site.
tinyurl.com/2cdcdjag ...

Sending Pic:158x199C;










A blue-and-white flycatcher in Japan. tinyurl.com/23st98zw ...

Sending Pic:137x202C;










Sunrise over Rock Creek Park in Washington DC, April 22.
tinyurl.com/2yh8xzzy ...

Sending Pic:200x146C;










Oakland mariposa lily showing its geometry in Mount Tamalpais
State Park, California. tinyurl.com/2bax2rwd ...

Sending Pic:199x150C;








A Betty Boop rose at the Los Angeles Arboretum.
tinyurl.com/284wou7m ...

Sending Pic:165x190C;









This pottery tea set was on sale last weekend at the Los Angeles
Arboretum. tinyurl.com/2bc6kc6s ...

Sending Pic:201x149C;







Our art of the week accompanied a New York Times essay about
Votvot, an alternative RFE/RL service for Russian audiences.
tinyurl.com/2cmsjxth ...

Sending Pic:201x191C;









Shortwave Radiogram returns to MFSK32 ...



 

This is Shortwave Radiogram in MFSK32 ...


Transmission of Shortwave Radiogram is provided by:

WRMI, Radio Miami International, http://wrmi.net

and

WINB Shortwave, http://winb.com


Please send reception reports to radiogram@verizon.net

And visit http://swradiogram.net

X/Twitter (for now): @SWRadiogram

I'm Kim Elliott. Please join us for the next Shortwave
Radiogram.
 

Sending Pic:144x108C;
 

RSID: <<2025-04-25T11:30Z MFSK-64 @ 15770000+1500>>
 

Giovanni Giorgio Moroder was born on 26 April 26, 1940.


Sending Pic:187x240;

https://www.giorgiomoroder.com/

Please report your decode to themightykbc@gmail.com.
 

RSID: <<2025-04-25T11:51Z THOR 22 @ 15770000+512>>
 

1
Rubik's Cube, color scheme modified, with shadow and reflection
User: Booyabazooka, User: Meph666 modified by User:Niabot
Creative Commons Attribution-Share Alike 3.0 Unported license. Subject to disclaimers.

2
KBC-logo (in BW12)

3
Puzzle
Author Hans-Peter Gauster sloppyperfectionist
Creative Commons CC0 1.0 Universal Public Domain Dedication
 

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