Tag Archives: VOA Radiogram

VOA Radiograms Today (17 March 2013)

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VOARadiogram(Source: VOA Radiogram)

The third airplay of VOA Radiogram is coming soon, at 1300 UTC, on 6095 kHz. Another, directed to Europe, will be at 1930 UTC on 15670 kHz.

Thanks to the many listeners throughout Europe, North America, and even in Asia, who have sent reports, audio, screenshots, spectrum displays, etc. After the last transmission today, I will summarize the results in this website.

WRMI, Radio Miami International, 9955 kHz, is transmitting IDs in the Olivia 8-1000 mode until 0400 UTC Monday (midnight EDT). These are centered on 1300 and 2500 Hz. Don’t be discouraged by the low signal level of WRMI, or by the Cuban jamming on the frequency. You might get a good decode of Olivia 8-1000 anyway.

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VOA Radiogram “soft launch” this weekend

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VOARadioGramKudos to VOA research analyst Dr. Kim Andrew Elliott for his remarkable innovation:  VOA Radiograms (i.e., digital text messages sent over shortwave broadcast radio), and for promoting this concept through the Voice of America. His persistance, with support from forward-thinking shortwave broadcasters like WBCQ, WRMI and The Mighty KBC, who have all broadcasted his digital messages, has paid off.  Classic technology meets current in this new communication mode which makes internet disruption absolutely irrelevant, and which is even impervious, to a great degree, to interference.

This weekend, the VOA Radiogram will become a reality:

(Source: VOA Radiogram)

VOA Radiogram will “soft launch” this weekend. Here is the transmission schedule (all days and times are UTC):

Saturday 1600-1630 17860 kHz

Sunday 0230-0300 5745 kHz (Saturday evening in North America)

Sunday 1300-1330 6095 kHz

Sunday 1930-2000 15670 kHz

All via the IBB Edward R Murrow Transmitting Station in North Carolina.

The digital text modes to be transmitted this weekend on VOA Radiogram are as follows. Each text transmission will be one minute, unless otherwise specified. Asterisk * denotes RSID: if your RxID is on, Fldigi will automatically switch to this mode and audio frequency. The other modes you can decode from your recording.

  1. BPSK31 on 2000 Hz*
  2. QPSK31 on 1000Hz, BPSK31* on 2000 Hz
  3. QPSK31 on 1000Hz*, PSK63F on 1500Hz, BPSK31 on 2000 Hz
  4. QPSK63 on 1000 Hz, PSKR125 on 1500 Hz*, BPSK63 on 2000 Hz
  5. QPSK125 on 1000Hz, PSKR250 on 1500 Hz*, BPSK63 on 2000 Hz
  6. QPSK250 on 800 Hz, PSKR500 on 1500Hz*, BPSK250 on 2200Hz
  7. QPSK500 on 800 Hz, PSKR1000 on 1500 Hz*, BPSK500 on 2200 Hz
  8. PSKR500 on 1000 Hz, PSK63F on 1500 Hz, PSKR125 on 2000 Hz, and PSKR250 on 2500 Hz* (5 min 40 secs).  The latter portions of the PSKR250 and 500 transmissions are formatted for Flmsg. (In Fldigi, Configure > Misc > NBEMS > under Reception of flmsg files, click Open with flmsg and Open in browser, and below that state the location of the flmsg.exe file.)
  9. MFSK32 image on 1500 Hz (54 seconds)

In future weeks, after the “hard launch” of VOA Radiogram, only one mode will be transmitted at one time. This will ensure the highest possible signal-to-noise ratio and the best possible chances for a successful decode.

See also how to decode the modes.

Send reports to radiogram(at)voanews.com

Follow @voaradiogram

Keep up-to-date with all future broadcasts, digital modes and methods for decoding on the VOA Radiogram website, and by following them on Twitter: @voaradiogram.

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VOA’s Radiogram adds digital content to AM broadcasts

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VOARadiogram

VOA Radiogram is a new Voice of America program experimenting with digital text and images via AM shortwave broadcasting.  One might say this is the crossover point between classic shortwave and current technology.  It’s fun and fascinating stuff, and also has real utility.

If you’ve been an SWLing Post reader for very long, you’ll be familiar with the digital messages, otherwise known as radiograms, included in broadcasts from The Mighty KBC and, earlier, from WBCQ.  We’ve also offered a small primer on decoding.

In the near future, Dr. Kim Elliott’s digital radiograms will be broadcast through VOA via the Edward R. Murrow Transmission Station in Greenville, NC.

The new VOA Radiogram website contains time and frequencies and all of the information you’ll need to decode VOA radiograms.

Incidentally, Kim Elliott and I will be presenting on the topic of VOA Radiograms and digital modes at the 2013 NASWA Winter SWL Fest. If you’re interested, it’s not too late to register!  Meanwhile, stay tuned for more information about radiograms.

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