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: <<2025-02-28T00:31Z MFSK-32 @ 9265000+1500>>


Welcome to program 391 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:

  1:47 MFSK32: Program preview (now)
  2:57 MFSK32: Most BBC radio will be unavailable internationally
  5:32 MFSK64: Radiation at 21 cm key to search for aliens
  8:13 MFSK64: This week's images
27:07 MFSK32: Closing announcements


 

Please send reception reports to radiogram@verizon.net

And visit http://swradiogram.net

We're on swradiogram.bsky.social now

And X/Twitter: @SWRadiogram
 

From Radio Today (UK):

Most BBC radio stations to become unavailable for international
users

Roy Martin
February 25, 2025

A new BBC audio website and app will replace BBC Sounds for users
outside the UK later this year.

This means only two radio stations will only be available via
BBC.com, the commercial arm of the corporation, along with
podcasts.

Only BBC World Service and BBC Radio 4 will be available to users
abroad, as revealed by James Cridland earlier this month.
(tinyurl.com/25v94rlr)

No other national or local radio stations will officially be
available due to rights reasons.

The BBC issued a press release on the move today, saying:
"Through this new user experience, listeners can explore deeper
context and analysis on select topics, gaining a richer
understanding of the issues that matter most—all without leaving
the platform.

"As part of this launch, the BBC will also be making BBC Sounds
available exclusively to UK audiences and ending access to the
service for international users beginning Spring 2025. UK users
who go on holiday (outside the UK) for a short period of time
will still be able to use the BBC Sounds app abroad."

BBC Studios is responsible for the monetization of digital news
and factual products including BBC.com, the BBC app, BBC Select
and BBC Podcast Premium, whose profits help continue to fund the
BBC's journalism and reporting.

https://radiotoday.co.uk/2025/02/most-bbc-radio-stations-to-become-unavailable-for-international-users/

See also: tinyurl.com/26drmt7k


Shortwave Radiogram now changes to MFSK64 ...

 

RSID: <<2025-02-28T00:35Z MFSK-64 @ 9265000+1500>>


This is Shortwave Radiogram in MFSK64

Please send your reception report to radiogram@verizon.net
 

From Universe Today via Phys.org:

If you're going to call aliens, use this number

by Paul M. Sutter
February 24. 2025

Let's dive into one of those cosmic curiosities that's bound to
blow your mind: how we might chat with aliens. And no, I'm not
talking about elaborate coded messages or flashy signals. We're
talking about something incredibly fundamental—21 cm radiation.

If you're planning on having a conversation across the vastness
of space, using light waves (electromagnetic radiation) is pretty
much your go-to option. It's fast, reliable, and, well, it's the
most practical way to shout out to other civilizations in the
universe. But why specifically 21 centimeters? That's where
things get juicy.

This 21 cm radiation isn't just some random frequency we picked
out of a hat. It's tied to something very essential, known as the
hydrogen spin flip. Hydrogen atoms consist of one proton and one
electron, and these tiny particles have a property called "spin."

Think of spin like a little arrow pointing up or down. Every so
often, in the vast reaches of space, a hydrogen atom's electron
can flip its spin, going from a state where its spin is aligned
with the proton to one pointing in the opposite direction. This
flip releases energy in the form of radiation at—you guessed it—a
wavelength of 21 centimeters.

So why does this matter? Well, any smart civilization, whether
they have blue skin, tentacles, or something more bizarre, will
eventually discover hydrogen, understand spin, dabble in quantum
mechanics, and figure out this whole 21 cm radiation thing.
They'll call it something different (they won't have "21" or
"cm") but the concept remains universal. It's like the cosmic
Rosetta Stone.

What makes 21 cm radiation perfect for long-distance interstellar
chats is its ability to cut through interstellar dust. Space is
filthy, with dust clouds that block out other forms of light.
However, 21 cm waves are like the VIPs of the universe, slipping
through the velvet ropes of cosmic debris to carry their message
far and wide.

Here's a fun fact: NASA's Pioneer spacecraft, launched in the
early 1970s, carries plaques. On these plaques there's a handy
diagram of the hydrogen spin flip transition. All other
measurements on the plaque, including the height of humans, are
made in reference to this fundamental distance. So the hope is
that aliens can recognize the hydrogen spin-flip transition and
use that to unlock the rest of our message.

Now imagine this scenario: One day, astronomers on Earth detect
an unusual surge of 21 cm radiation. It's not coming from a
random hydrogen cloud; it's directional, purposeful. That could
very well be an alien civilization sending us a "What's up?"
across the cosmos—21 cm radiation makes for a great calling card.

Using 21 cm radiation to communicate with extraterrestrial beings
leverages a basic, universal constant. And who knows? Maybe one
day, when we finally hear that signal, we'll know that somewhere
out there, another intelligent species figured out the same
galactic hack we did.

https://phys.org/news/2025-02-youre-aliens.html
 

[21 cm = 1.42 GHz]
 

This is Shortwave Radiogram in MFSK64

Please send your reception report to radiogram@verizon.net
 

This week's images ...



A male Pin-tailed Whydah at a fuel depot in Mandinari, Gambia. A
winner of the 2025 World Nature Photography Awards.
tinyurl.com/2bgqlc42

Sending Pic:206x126C;








Ukraine supporters mark the third anniversary of Russia's
invasion of Ukraine, near Berlin's Brandenburg Gate.
tinyurl.com/2y2hd2n2 ...

Sending Pic:200x141C;









A sailboat is silhouetted against the setting sun off the coast
of Treasure Island, Florida, February 17. tinyurl.com/2am8jzey
...
Sending Pic:203x129C;










A flower praying mantis (the blue thing) perches on a mushroom. A
winner of the 2025 World Nature Photography Awards.
tinyurl.com/24jagtfv ...

Sending Pic:201x134C;










Edinburgh Trams at Ocean Terminal, Leith, Scotland.
tinyurl.com/2365jhmk ...

Sending Pic:207x131C;









Winter sunrise over West Bay in North Berwick, Scotland.
tinyurl.com/2365jhmk ...

Sending Pic:203x113C;







The beginnings of blossom buds on cherry trees at the Tidal Basin
in Washington DC, February 25. tinyurl.com/2d5at7yr ...

Sending Pic:199x144C;










Sun rising behind The Basilica of the National Shrine in
Washington DC, February 21. tinyurl.com/299bu28n ...

Sending Pic:204x146C;









Flowers at the University of California Santa Cruz Arboretum.
tinyurl.com/22c4lc72 ...

Sending Pic:138x208C;









The ruins of a textile factory destroyed during the Civil War at
Sweetwater Creek State Park, Georgia. tinyurl.com/2yn7wmjk ...

Sending Pic:174x175C;









Our painting of the week is "Still Life with Amaryllis by the
Window" (1939) by Barthel Gilles (German, 1891-1977).
tinyurl.com/22mgty2k

Sending Pic:156x219C;









Shortwave Radiogram returns to MFSK32 ...

 

RSID: <<2025-02-28T00:57Z MFSK-32 @ 9265000+1500>>

This is Shortwave Radiogram in MFSK32 ...


Transmission of Shortwave Radiogram is provided by:

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and

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Please send reception reports to radiogram@verizon.net

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X/Twitter (for now): @SWRadiogram

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

 

RSID: <<2025-02-28T11:30Z MFSK-64 @ 15770000+1500>>

Piet Veerman of The Cats was born on March 1, 1943.

Sending Pic:181x240;

https://en.wikipedia.org/wiki/Piet_Veerman

Please report your decode to themightykbc@gmail.com.