To speed up the printout of the Chinese characters, let's
see if
MFSK64 can be used successfully.
VOA Radiogram now changes to MFSK64 for the same sample
of
Chinese text...
<EOT>
<STX>
欧洲卫星在返回地球时碎裂燃烧
美国之音
11.11.2013
一枚燃料耗尽的欧洲卫星星期一早上返回地球大气层，卫星的碎片坠入大海，没有造成伤
害。
欧洲空间局的地球重力场和海洋环流探测卫星没能逃出万有引力定律，11月11日它从其
轨道坠落到地球上。
Next on VOA Radiogram, an MFSK64 image of the same
Chinese
text...
<EOT>
Attemptofatranslation ofthe Chinese
text:
[roger]
<STX>
Sending Pic:542x199;
European satellite breaks up and burns on return
to earth
Voice of
America
11.11.2013
A European
satellite that ran out of fuel re-entered the earth's
atmosphere early monday, with some pieces falling
harmlessly into the sea.
The European
Space Agency’s Gravity field and steady-state Ocean Circulation Explorer
satellite surrendered to the laws of gravity, dropped from its orbit and
fell toward earth on November 11th.
<EOT>
<STX>
This is VOA Radiogram from the Voice of America.
VOA Radiogram continues testing the new long-interleave modes
MFSK64L and MFSK128L.
Next will be a VOA News story in MFSK64, followed by the same
Scientists have built a device they say can capture stray
microwave signals and convert them into electrical power capable of recharging a
cell phone or other small electronic
device.
Researchers at Duke University's Pratt School of Engineering
in North Carolina say the device is similar to a solar panel and has a similar
efficiency, and while it harvests
microwaves, the researchers think the harvester could be
tuned to harvest the signal from other energy sources, including satellite
signals, sound signals or Wi-Fi signals.
The harvester uses something called "metamaterials," which
are "engineered structures that can capture various forms of wave energy and
tune them for useful applications."
"Until now, a lot of work with metamaterials has been
theoretical," said graduate student Alexander Katko. "We are showing that with a
little work, these materials can be
useful for consumer applications."
Researchers used a series of five fiberglass and copper
energy conductors wired together on a circuit board to convert microwaves into
7.3V of electricity. By comparison,
Universal Serial Bus (USB) chargers for small electronic
devices provide about 5V.
"We were aiming for the highest energy efficiency we could
achieve," said engineering student Allen Hawkes. "We had been getting energy
efficiency around 6 to 10 percent, but
with this design we were able to dramatically improve energy
conversion to 37 percent, which is comparable to what is achieved in solar
cells."
With additional modifications, the researchers said the
power-harvesting metamaterial could potentially be built into a cell phone,
allowing the phone to recharge wirelessly
while not in use. This feature could, in principle, allow
people living in locations without ready access to a conventional power outlet
to harvest energy from a nearby cell
phone tower instead.
"Our work demonstrates a simple and inexpensive approach to
electromagnetic power harvesting," said lead investigator Steven Cummer. "The
beauty of the design is that the
basic building blocks are self-contained and additive. One
can simply assemble more blocks to increase the scavenged power."
The Duke study appears in the journal Applied Physics Letters
in December 2013.
See also <a href="http://www.pratt.duke.edu/news/wireless-device-converts-lost-energy-electric-power">www.pratt.duke.edu/news/wireless-device-converts-lost-energy-electric-powe
r</a>
[WRAP:chksum 0AF9][WRAP:end]
... end
<EOT>
<STX>
VOA Radiogram now changes to MFSK32...
<EOT>
Voice of America
News / Science & Technology
Device Turns Stray Microwaves into Energy
VOA News
November 12, 2013
Scientists have built a device they say can capture stray microwave signals
and convert them into electrical power capable of recharging a cell phone
or other small electronic device.
Researchers at Duke University's Pratt School of Engineering in North Carolina
say the device is similar to a solar panel and has a similar efficiency,
and while it harvests microwaves, the researchers think the harvester could
be tuned to harvest the signal from other energy sources, including satellite
signals, sound signals or Wi-Fi signals.
The harvester uses something called "metamaterials," which are "engineered
structures that can capture various forms of wave energy and tune them for
useful applications."
"Until now, a lot of work with metamaterials has been theoretical," said
graduate student Alexander Katko. "We are showing that with a little work,
these materials can be useful for consumer applications."
Researchers used a series of five fiberglass and copper energy conductors
wired together on a circuit board to convert microwaves into 7.3V of electricity.
By comparison, Universal Serial Bus (USB) chargers for small electronic
devices provide about 5V.
"We were aiming for the highest energy efficiency we could achieve," said
engineering student Allen Hawkes. "We had been getting energy efficiency
around 6 to 10 percent, but with this design we were able to dramatically
improve energy conversion to 37 percent, which is comparable to what is
achieved in solar cells."
With additional modifications, the researchers said the power-harvesting
metamaterial could potentially be built into a cell phone, allowing the
phone to recharge wirelessly while not in use. This feature could, in principle,
allow people living in locations without ready access to a conventional
power outlet to harvest energy from a nearby cell phone tower instead.
"Our work demonstrates a simple and inexpensive approach to electromagnetic
power harvesting," said lead investigator Steven Cummer. "The beauty of
the design is that the basic building blocks are self-contained and additive.
One can simply assemble more blocks to increase the scavenged power."
The Duke study appears in the journal Applied Physics Letters in December
2013.
www.voanews.com/content/device-turns-stray-microwaves-into-energy/1788608.html
See also www.pratt.duke.edu/news/wireless-device-converts-lost-energy-electric-power
