VOA Radiogram bene in notturna sui 5745 kHz

Primo tentativo la scorsa notte per ricevere la trasmissione della VOA Radiogram in MFSK32 sui 5745 kHz dal North Carolina ed i risultati sono stati buoni: 100% del testo decodificato, compresa la parte in carattere cirillico.

The Radio Free Europe/Radio Liberty Russian Service will end its
shortwave transmissions on June 26.
Here is its announcement in Russian, 31 May 2016, which you can
Google-translate ....

Радио Свобода 26 июня прекращает вещание на коротких волнах
мая 31, 2016
Круглосуточное вещание в Интернете сохраняется
С 26 июня Русская служба Радио Свобода прекращает радиовещание в
диапазоне коротких волн.
Круглосуточное вещание сохраняется на интернет-сайте Радио
Свобода. С 0 до 6 часов и с 21 до 22 часов по московскому времени
программы Русской службы можно слушать на средних волнах на
частоте 1386 КГц, также круглосуточно – с помощью спутников Hot
Bird и AsiaSat. Подробности о настройках – на нашем сайте
[www.svoboda.org/howtolisten/waves.html].
Русская служÐrO  acIедакция) Радио Свобода начала коротковолновое
вещание 1 марта 1953 года под названием "Радио "Освобождение".
Первым ее диктором стал бывший московский актер Сергей
Дубровский.
Медиакорпорация Радио Свобода/Свободная Европа ставит своей
задачей распространение ценностей демократии и гражданского
общества, обращаясь к аудитории тех стран, в которых свобода
прессы либо запрещена или ограничена властями, либо пока не стала
нормой жизни общества.
http://www.svoboda.mobi/a/27769319.html
See also:
http://learningenglish.voanews.com/a/russia-seeks-chinas-help-controlling-the-internet/3329257.html

Il segnale arrivava s9+10/s9+20dB sul mio IC-R71 e la decodifica con il software Fldigi presentava un rapporto S/N intorno a -5dB.
Anche le immagini trasmesse sono state decodificate tutte, anche se non con una qualità elevata dovuta alla variabilità del segnale:

Ho utilizzato come antenna la filare da 15 metri con il balun Nooelec 1:9, che sembra rendere leggermente meglio di circa 10dB del vecchio MLB del RF System.

VOA Radiogram 17860 kHz

Discreta ricezione oggi della trasmissione digitale della VOA Radiogram in modo MKSK32 sui 17860 kHz dalle 16:00 alle 16:30 utc.
Non c'era molto rumore in banda e seppure il segnale non fosse elevato sono riuscito a decodificare oltre il 95% del testo, ma solo due delle quattro immagini inviate, credo a causa di alcuni disturbi locali.
Qui parte del testo e le immagini ricevute con Fldigi.

Welcome to program 81 of VOA Radiogram from the Voice of America.

I'm Kim Andrew Elliott in Washington.

Here is the lineup for today's program (all in MFSK32 except
surprise modes):

 1:37  Program preview (now)
 2:46  WakaWaka solar LED light, with image
 8:41  Controlling invasive species by eating them, with image
16:13  Balloons send leaflets to North Korea, with image
24:00  Image: Drone disrupts Serbia-Albania football match
26:59  Closing announcements
28:05  Surprise mode and audio frequencies


Please send reception reports to radiogram@voanews.com.

And visit voaradiogram.net.

Twitter: @VOARadiogram

...

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Image: A WakaWaka LED light ...

Sending Pic:170x190C;

VOA NEWS

North Korean Defector Vows More Airborne Leafleting

Briane zene(ºÂc % 2014

SEOUL - South Korea-based activists recently launched balleJue Noaded with propaganda leaflets over z ªy's

heavily

militarized northern land border, triggering a volley of gunfire

between border security guards and forcing a bilateral relations

dialog to the point of collapse.

...

VOA News Producer in Seoul Youmi Kim contributed to this report.

http://www.voanews.com/content/anti-north-korean-balloon-acitivis

t-promise-propaganda-campaigning/oiA84579.html

 R pre

Image: Activists' balloons just before launch 

B ryt

Sending Pic:250x191C;

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tnrtne ln T   t

Thank you for decoding the modes on VOA Radiogram.

Risposta da VOA Radiogram

Ricevuta dopo 7 giorni la risposta dalla VOA Radiogram per il rapporto inviato sulla trasmissione in MFSK32.
Data la scarsa ricezione, ovviamente non è da considerare una QSL.

Dear Roberto,


Thank you for your first report of VOA Radiogram last weekend.


I hope you have better reception in the future!


All the best,



Kim

Ricezione VOA Radiogram

Avevo già provato altre volte a ricevere le emissioni in digitale della Voice of America denominate Radiogram, ma senza successo.
Ieri finalmente qualcosa sono riuscito a decodificare, nonostante il segnale fosse molto basso ed il rumore di fondo piuttosto accentuato.
La schedula prevedeva un'emissione da Greenville (USA) sui 15670 kHz dalle 19:30 alle 20:00 UTC e così ho sintonizzato l'IC-R71 in AM (come consigliato sul loro sito) ed ho avviato il software Fldigi per la decodifica in MFSK32 centrato a 1500 Hz .
Sono riuscito a decodificare correttamente solo parte della trasmissione, ottenendo anche un immagine, ma di pessima qualità.
Qui la parte di testo ricevuto:

...waste heat into electricity
by improving "thermoelectric" devices.

Untili Lz`bras sò cefficient or expensive for
widespread uisPeeie0jete ctn in the latest issue of the journal Nature,
a material called tin selenide has an unusual combination of
properties that make it particularly good at converting heat into
electric current. Tin selenide is a good conductor of
electricity but a poor conductor of heat.

Scientists say the new device could be a step toward making a
more efficient hybrid car that would use fuel to directly create
electricity rather than the less-efficient current process of
running a gasoline motor to power a generatoobS p://www.voanews.com/content/scientists
-create-highly-efficient
-thermoelectric-material/1895867.html

See also 
http://www.fhtdo*eenewscenter/stories/2014/04/surprising
-material-could-play-role-in-saving eyaS¯ r

...
This is VOA Radiogram from the Voice of America.
...
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just thƒA°aCen m"ek nedd1onS˜e¢te"­ö n‡'e1 9ÿey»dup.

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açgvee¶1Rsz  etßetevhfffer rleoaºbP gasoline einesxn oe s iem}ands, lizte,-¯»uf KpcRtt
( í =ottQiHne is an evolutioq nEuB1gws, says
James BelSiMo iv nBo3 p”a maybe thought was that -- when the Nissan Leaf came out or
 re evrol   iitb was that suddi±qs nuatex 1nSeeeqn ma[wSg ,z«ÌeEha's trÙ]Ru
1>ouP] to go back in. Electrified
vehicles are therm 

Questa l'immagine ricevuta, decisamente indecifrabile:

Per maggiori info e per la schedula delle prossime emissioni VOA Radiogram
I rapporti possono essere inviati a radiogram(at)voanews.com.