Shortwave Radiogram 29 July 2018

Welcome to program 58 of Shortwave Radiogram.

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

Here is the lineup for today’s program in modes as noted:

1:37 MFSK32: Program preview (now)
2:57 Slow Scan Radio* and SSTV from the ISS
9:34 8PSK125F: VOA story about water under Mars**
11:26 8PSK125F: DW story about water under Mars***
14:05 MFSK64: Cooling devices and global warming*
21:22 Images of the week*
28:39 MFSK32: Closing announcements

* with image(s)

** Use AM mode

*** Use USB or LSB modes if available

Please send reception reports to radiogram@verizon.net

And visit http://swradiogram.net

Twitter: @SWRadiogram


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“Slow Scan Radio”

A new radio program providing text and images via analog
shortwave broadcasting is “Slow Scan Radio,” produced by John
Piek, PA0ETE.

As the name implies, the show features images in various SSTV
modes. The SSTV images can be decoded using software such as
MMSSTV from http://hamsoft.ca/pages/mmsstv.php and the
receive-only RXSSTV from
http://users.belgacom.net/hamradio/rxsstv.htm .

Slow Scan Radio also has text in various modes. Several MFSK and
PSK modes were included on the first broadcast on 25 July.

The schedule is Wednesdays at 1830-1900 UTC on 6070 kHz from
Channel 292 in Germany. On 8 August, a special one-hour edition
of “Slow Scan Radio” will begin 30 minutes earlier, at 1800 UTC,
so that Channel 292 can test one antenna from 1800-1830 UTC and
another from 1830-1900 UTC, both on 6070 kHz.

The website of Slow Scan Radio is http://www.slowscanradio.com
and reception reports can be sent to John at x@xdv.me .


@V

Image: Logo of Slow Scan Radio …

Sending Pic:210x200C;

And on the subject of SSTV …

From arrl.org

Slow-Scan TV Transmissions from International Space Station Set
for July 30 – 31

25 July 2018

Russian cosmonauts on the International Space Station are
expected to activate Amateur Radio Slow Scan Television (SSTV)
transmissions on 145.800 MHz FM on July 30 and 31 The SSTV
experiment should be active on Monday, July 30, 1600 – 1930 UTC,
and Tuesday, July 31, 1325 – 1915 UTC, using the RS0ISS call
sign. SSTV images will be transmitted using the Kenwood TM-D710
transceiver in the Russian ISS Service Module. Format is expected
to be PD-120.

http://www.arrl.org/news/slow-scan-tv-transmissions-from-international-space-station-set-for-ju
ly-30-31

See also:
ISS Slow Scan TV (SSTV)

This is Shortwave Radiogram.

Please send reception reports to radiogram@verizon.net

Next on Shortwave Radiogram is an experiment.

Because 8PSK125F involves phase shift keying, any difference in
the lower versus upper sideband could disrupt the phase
modulation. For this reason, our hypothesis is that the decode
will be better in a single sideband mode (USB or LSB) than in AM,
which opens the possibility of clashing sidebands.

To test this hypothesis, we will send content twice, first for
reception in AM, and later for reception in an SSB mode.

If your receiver is not already in the AM mode, please switch to
AM for the next content in 8PSK125F (30 seconds will be provided)

(It stopped working…)

…….and Africa, are at
risk from lack of access to cooling, according to a new report
from the Sustainable Energy for All (SE4ALL) initiative. The 30
hottest cities in the world are in developing countries, which
are already suffering the most from climate change.

“As populations grow and temperatures reach new records, the
health and economic risks associated with lack of access to
sustainable cooling are growing exponentially,” Rachel Kyte,
director and Special Representative to the United Nations
Secretary-General for SE4ALL, told DW.

In India, for instance, almost 20 percent of health care products
that depend on cold supply chains, such as vaccines, arrive in an
unsatisfactory state. Nearly half a million people worldwide die
every year from foodborne illness, or diseases caused by
contaminated food. Insufficient cooling is a main reason for
that, the World Health Organization says.

A lack of cooling also deepens poverty in developing countries,
where farmers regularly lose about 40 percent of their harvest
due to inadequate storage, according to the World Food Programme.
The same happens with fish, which only lasts a couple of hours
without refrigeration. This impedes small retailers from reaching
more lucrative markets and growing.

“The more you can establish a cold chain and maintain food cold,
the farther you can go and the greater economic value you can
get,” Radka said.

Access gaps to cooling also affect productivity at work and study
places.

Warming up the planet

Air conditioners and refrigerators typically use
hydrofluorocarbon gases (HFCs), refrigerants that do not damage
the ozone layer but cause a global warming effect up to 23,000
times greater than carbon dioxide (CO2).

By 2050, HFCs are expected to be responsible for around 12
percent of all global warming. The binding international
agreement Kigali Amendment, which enters into force in January
2019, aims to reduce HFCs by more than 80 percent over the next
30 years.

However, cooling technologies also use a significant amount of
energy – mainly from fossil fuels – which contributes even more
to air pollution. In 20 years, air conditioning systems could
account for 40 percent of electricity consumption in Southeast
Asia.

Air pollution is expected to cause about 13,000 additional deaths
per year by mid-century, about a thousand of them due to air
conditioning, a new study of current air conditioner use in the
United States estimates.

“When we turn the air conditioners on inside to adapt to the heat
outside, we’re creating pollution at the power plants that are
burning coal and gas,” David Abel, lead author of the study, told
DW. As long as we rely on fossil fuels, we’ll address the heat
problem while at the same time contributing to another problem,
air pollution, he added.

A sustainably cooled world

Breaking the vicious circle would likely have to involve the
rapid reduction of HFCs and of fossil fuels. Producing more
efficient cooling devices wouldn’t hurt either.

More efficient products can massively reduce emissions regardless
of the energy source, Brian Holuj, program officer at UN
Environment’s United for Efficiency initiative, told DW.

“It’s one of the fastest, cheapest and cleanest ways to reduce
emissions around the world and reach the Paris targets,” he
added.

But such a transition requires policy-makers to incentivize
manufacturers and buyers. Most countries could increase
efficiency by at least 30 percent for air conditioners and 60
percent for household refrigerators. Therefore, “the key
challenge is not a lack of technology, it’s a lack of good policy
and awareness” Holuj said.

Yet small moves help too. Keeping cooling devices clean, painting
roofs white to reflect sunlight or creating wind corridors to
allow heat to escape are little tricks to keep our planet from
getting hotter. And, of course, reducing our consumption.

“Just becoming aware of this issue is important,” Radka pointed
out. “We all tend to think as individuals and not about what
happens if our behavior is multiplied by a billion people.”

As a final remark, Kyte concludes that for a sustainable world to
become reality, we must bear in mind that “access to cooling is
not a luxury, it’s a human right.”

https://www.dw.com/en/how-to-prevent-cooling-from-warming-up-the-world/a-44734986

 

Accompanying photo: While you’re building your rooftop garden,
you also might want to consider planting some chili. That’s
because spicy food, believe it or not, can keep you cool. It
forces you to sweat, lowering your body temperature. …

Sending Pic:222x188C;

This is Shortwave Radiogram

Please send reception reports to radiogram@verizon.net

THIS WEEK’S IMAGES

A new set of weather-themed postage stamps in Canada includes
this one showing a moon halo in Whistler, British Columbia,
caused by airborne ice crystals refracting moonlight. From
bit.ly/2OjAUus …

Sending Pic:226x176C;

After serving in Sweden, Italian fire fighting planes head to
Greece to help another EU country. From bit.ly/2v7SKHX …

Sending Pic:215x176C;

The painting of the week is acrylic, five floating circles by
Colin McNaught. From

Small Paintings

Sending Pic:216x212C;

Shortwave Radiogram now returns to MFSK32 …

of Shortwave Radiogram is provided by:

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

and

Space Line, Bulgaria, http://spaceline.bg

Please send reception reports to radiogram@verizon.net

And visit http://swradiogram.net

Twitter: @SWRadiogram

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