RSID: <<2022-04-21T23:31Z MFSK-32 @ 9265000+1500>>


Welcome to program 253 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:

  1:39 MFSK32: Program preview (now)
  2:45 MFSK32: Military intruders in ham bands
  4:59 MFSK64: Cells make more power from heat than a turbine*
12:05 MFSK64: This week's images*
28:38 MFSK32: Closing announcements

* with image(s)




Please send reception reports to

And visit

We're on Twitter now: @SWRadiogram


From Southgate Amateur Radio News:

IARUMS newsletter - Military intruders in ham radio bands

April 15, 2022

IARU Monitoring System (IARUMS) Region 1 newsletter reports
during March, likely as a consequence of the current military
situation, they noticed an increase of transmissions in unknown
modes in HF amateur radio bands

In many cases, their most probably function was to act as jammers
(signals intentionally transmitted over other transmissions in
order to disrupt or nullify their reception).

We also received on several occasions a signal whose possible
function, given its behaviour (transmission of short but powerful
bursts jumping in an organised and repetitive way along the radio
spectrum), could be to act as an ionosonde (radar used to examine
the ionosphere in order to determine the optimum frequency for
the transmission of signals in HF bands).

Also, military modes that we had not observed for long time, such
as the Russian digital mode T-230-1A, also known as "Mahovik"
were copied.

The International Amateur Radio Union Monitoring System (IARUMS)
Region 1 March 2022 newsletter can be read at:


Shortwave Radiogram now changes to MFSK64 ...





RSID: <<2022-04-21T23:35Z MFSK-64 @ 9265000+1500>>

This is Shortwave Radiogram in MFSK64

Please send your reception report to





From New Atlas:

Breakthrough TPV cell makes more power from heat than a steam

By Loz Blain
April 20, 2022

The majority of humanity's electricity comes from heat – burning
coal or natural gas, nuclear fission, concentrating solar –
that's used to boil water and spin steam turbines. This method of
power generation has been around since Charles Parsons first
hooked a steam turbine up to a dynamo in 1884, and licensed the
patent to George Westinghouse. Over the last century and a half,
it's become ubiquitous all over the world as a mature and
well-optimized technology with known strengths and limitations.

One of those limitations is efficiency. While some turbines have
managed to convert up to 60 percent of a heat source's energy
into electricity, the average turbine operates at closer to 35
percent efficiency. Another limitation is heat – the moving parts
in turbines prevent them from operating, for example, at
temperatures over 2,000 °C (3,600 °F).

These figures come from an MIT research team that's been working
on an alternative: a heat engine with no moving parts, a
thermophotovoltaic (TPV) device that the team has now
demonstrated in a small 1 x 1-cm (0.4 x 0.4-in) prototype,
maintaining an efficiency over 40 percent across a temperature
range between 1,900 - 2,400 °C (3,450 - 4,300 °F).

That's a significant advance, says the team, from typical TPV
heat engines, most of which operate at about 20-percent
efficiency, with the previous record being 32 percent, and offers
a more effective way of harvesting energy than turbines under the
right circumstances.

Thermophotovoltaic heat engines boil down to something like this:
heat arrives and is collected by an absorber/emitter material,
which takes in the heat and kicks out photons on the other side.
These photons are harvested by a regular photovoltaic cell in
close proximity, which converts them into usable electricity.

The MIT team made its impressive efficiency advance by tweaking a
few variables. Firstly, the input heat temperature – this device
is designed specifically to work at hot temperatures above the
range where turbines can no longer function. This allows the team
to use higher-bandgap absorber/emitter materials, which take in
more energy and release higher-energy infrared photons on the
emitter side – as well as photovoltaic cells designed to take
maximum advantage of those high-energy photons.

Then, the team layered the photovoltaic cells – the first layer
being designed to harvest the highest-energy photons at
transmission-efficient higher voltages, and the second layer
being there to mop up lower-energy photons. Photons that make it
through both layers are reflected back onto the absorber/emitter
with a mirror, so that any photons outside the optimal ranges can
feed back into the start of the process and help to keep the
emitter temperature up.

In a paper published in Nature, the research team discussed its
record-breaking experimental results, noting that "reaching 40
percent efficiency with TPVs is notable from the standpoint that
it now renders TPV as a heat engine technology that can compete
with turbines. An efficiency of 40 percent is already greater
than the average turbine-based heat engine efficiency in the
United States, but what could make TPVs even more attractive than
a turbine is the potential for lower cost, faster response times,
lower maintenance, ease of integration with external heat sources
and fuel flexibility."

This novel heat engine technology operates in a temperature range
that's "applicable for natural gas or hydrogen combustion,"
raising the prospect of next-generation low-emission power plants
capable of extracting more power, more cheaply, from a combustion
source. In the case of green hydrogen, such a plant could be free
from carbon emissions, if not nitrous oxides.

But the research team also points out that at this level of
efficiency, these TPV heat engines can instantly make thermal
energy grid storage (TEGS) projects an economically viable way to
store and release renewable energy at the grid scale. The team's
proposed design would use excess electricity to heat up "heavily
insulated banks of hot graphite," which would act as an energy
storage medium. When that energy is needed, large banks of TPV
heat engines would convert it back into electricity for the grid.

The team calculates that this heat battery would operate at a
round-trip efficiency somewhere around 40-55 percent. That's
somewhat wasteful compared with lithium batteries, which the team
estimates operate at closer to 70 percent efficiency. But the
researchers believe it'll be so much cheaper – with a capital
cost per unit energy projected at just one-tenth that of lithium
batteries – that TEGS will compete favorably wherever the TPV
heat engine can perform over about 35-percent efficiency.

"Thermophotovoltaic cells were the last key step toward
demonstrating that thermal batteries are a viable concept," says
Asegun Henry, the Robert N. Noyce Career Development Professor in
MIT’s Department of Mechanical Engineering. "This is an
absolutely critical step on the path to proliferate renewable
energy and get to a fully decarbonized grid ... The technology is
safe, environmentally benign in its life cycle, and can have a
tremendous impact on abating carbon dioxide emissions from
electricity production."

What's more, this team's record efficiency figure will surely
soon be eclipsed.

"Turbine costs and performance have already reached full
maturity," reads the study, "so there are limited prospects for
future improvement, as they are at the end of their development
curve. TPVs, on the other hand, are very early in their progress
down a fundamentally different development curve. Consequently,
TPVs have numerous prospects for both improved efficiency (for
example, by improving reflectivity and lowering series
resistance) and lowering cost (for example, by reusing substrates
and cheaper feedstocks)."

This kind of step-change in efficiency could indeed have an
enormous butterfly effect moving forward in the race to zero
carbon emissions. We hope to hear a lot more about these
solid-state heat engines in the next few years.

See also:

Image: Prototype of a thermophotovoltaic heat cell ...

Sending Pic:201x177C;


This is Shortwave Radiogram in MFSK64

Please send your reception report to




This week's images ...

Wild bluebells, which bloom around mid-April turning the forest
floor blue, in Halle, near Brussels, Belgium. ...

Sending Pic:207x157C;


An Eastern tiger swallowtail at Bambi’s Butterfly House, Epcot,
Walt Disney World, Florida. ...

Sending Pic:206x141C;


Turret Gateway in Leicester, England. ...

Sending Pic:165x201C;

Sunrise in Conchra overlooking Bundalloch, Scotland. ...

Sending Pic:200x165C;

Snow on April 19(!) as seen from the National Weather Service
office in Binghampton, New York. ...

Sending Pic:341x191;

Lightning over the Capitol Riverfront in Washington DC, showing a
section of the Frederick Douglass Bridge ovet the Anacostia
River. ...

Sending Pic:206x133C;

Azaleas at the National Arboretum in Washington DC, April 16. ...

Sending Pic:174x197C;



A palm warbler at Washington Crossing State Park, Pennsylvania,
April 13. ...

Sending Pic:170x205C;

Our painting of the week is Untitled (pink spring sky) (1972) by
Canadian artist Robert Newton Hurley. ...

Sending Pic:206x145C;



Shortwave Radiogram returns to MFSK32 ...


RSID: <<2022-04-21T23:58Z MFSK-32 @ 9265000+1500>>

This is Shortwave Radiogram in MFSK32 ...


Shortwave Radiogram is transmitted by:

WRMI, Radio Miami International,


WINB Shortwave,

Please send reception reports to

And visit

Twitter: @SWRadiogram or

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





   Closing music SWRG#253:




 D-06193 Petersberg (Germany/Germania)


 Dipol for 40m-Band    &   Boomerang Antenna 11m-Band

 RX   for  RF:

 FRG-100B + IF-mixer  &    ICOM IC-R75 + IF-mixer

 Software IF:

 con STUDIO1  -  Software italiano per SDR     [S-AM-USB/LSB]   +     beta 11  Version 2.80 (August 21, 2018)  - for scheduled IF-recording

 Software AF:

 Fldigi-4.0.18        +   flmsg-4.0.7                            images-fldigifiles on homedrive.lnk


 German XP-SP3 with support for asian languages

 German W7 32bit + 64bit


 MEDION Titanium 8008  (since 2003)   [ P4 - 2,6 GHz]

 MSI-CR70-2MP345W7  (since2014)   [i5 -P3560 ( 2 x 2,6GHz) ]



RSID: <<2022-04-24T01:30Z MFSK-64 @ 5960000+1500>>

Roy Orbison was born April 23, 1936.

He died in 1988.

Sending Pic:233x205;

Please report your decode to





RSID: <<2022-04-21T02:50Z MFSK-64 @ 5850000+1500>>

This Is A Music Show #162
21 April 2022

0200-0300UTC Thursday on 5850 kHz

via WRMI, Okeechobee USA


TIAnExpressMS w/ Radio Northern Europe International
via Channel 292 in Germany, mainly on 6070 kHz.

Broadcast various dates/times/freqs. Check the schedule here:



The Burbank Philharmonic - These Boots Are Made For Walking


Preetenders - Porcelain
Dennis Coffey And The Detroit Guitar Band - Son Of Scorpio
The Pretty Things - She Says Good Morning


Lee Oskar - Feelin' Happy
Sparks - Don't Leave Me Alone With Her
Curved Air - UHF


Eric Donaldson - Sweet Jamaica VERSION
The Clash - Outside Broadcast
Spooky Tooth - Waitin' For The Wind


Pidgeon - The Dancer


THIS DATA w/ Bert Kaempfert - Cha Bull


Billy Paul - One Man's Junk


TIAMS Website:

Go here for show archives + official shop!


Please send reception reports/comments:

Follow TIAMS on Twitter:


Thanks for listening!





RSID: <<2022-04-21T02:51Z MFSK-64 @ 5850000+1500>>


Sending Pic:300x300Cp4;



 RNEI 28 Playlist, April 2022 - for 🌴 WRMI 🌴 (Spotify Stream numbers included) 








Natasja - Dig Og Mig                   [Natasja Saad 1974 - 2007] 🇩🇰  (840k) 2008-09-29


Elias O - Dansa 🇸🇪 (75k)

- - -



Malka - Maita ja mantuja 🇫🇮  (179k) 2021-09-16
  RNEI Indie Section          


Pixey - Supersonic Love 🇬🇧 (31k)

- - -

5 Mathias Gundhus - Wooden Bones 🇳🇴 (19k) 2017-08-09
6 Marlae - Think Out Loud 🇮🇪  (10k)

- - -



Daniel Oliver - First, Pop        -'s  - song of the month 🇮🇸 (13.4k)

- - -

RNEI Folk Section


Elin Kĺven - Ulda niktá / Ulda allures *Sámi*  (17k) 2012-11-27
  RNEI Dance Section          


Arild Aas & Adren - Left Behind 🇳🇴  (8.7k)

- - -



Mamma's Mest Metal          


Tribulation - Hour of the Wolf 🇸🇪 (642k) 2020-12-18


Svartkonst - Black Light Burning 🇸🇪 (62k) 2018-06-30


Enemy Awake - No Surrender 🇸🇪 (1505)

- - -

13 Monstra - Blossoming 🇮🇸 (< 1k)

- - -



Stephen's Feature - Astro'n'out 🇱🇻     [Astro'n'out ir latviešu popgrupa, kas dibināta 2003 gadā Rīgā.]    


Astro'n'out - Daļa Rīgas 🇱🇻 (861k) 2007-04-04


Astro'n'out - Tici sev 🇱🇻 (8462) 2014-02-02
16 Astro'n'out - Esi Man Klāt 🇱🇻 (NA) 2014-02-02


Astro'n'out - Atskatos 🇱🇻 (119k) 2015-12-11


  RSID: <<2022-04-21T01:27Z MFSK-64 @ 5850000+1500>>


  --- RNEI #28 Playlist ---
  [flag] & (Spotify Streams)
  1, Natasja - Dig Og Mig 🇩🇰 (840k)
  2, Elias O - Dansa 🇸🇪 (75k)
  3, Malka - Maita ja mantuja 🇫🇮 (179k)
  4, Pixey - Supersonic Love 🇬🇧 (31k)
  5, Mathias Gundhus - Wooden Bones 🇳🇴 (19k)
  6, Marlae - Think Out Loud 🇮🇪 (10k)
  7, Daniel Oliver - First, Pop 🇮🇸 (13.4k)
  8, Elin - Kĺven - Ulda niktá / Ulda allures *Sámi* (17k)
  9, Arild Aas & Adren - Left Behind 🇳🇴 (8.7k)

  Our email:

  Til vi mřtes igjen,
  Ha det!