Last weekend’s experiment with the simultaneous transmission of MFSK32 text and an MFSK64 image was fairly successful. We still need to determine the best combination of modes and audio frequencies for simultaneous text and image transmissions.

This weekend we will resume more conventional sequential text and image transmissions. MFSK32, MFSK64L, and MFSK64 will be used.

Here is the lineup for VOA Radiogram, 22-23 February 2014, program 47:

  1:40  MFSK32: Program preview
  2:55  MFSK32: Greetings to WinteRFest in Iowa, with images
  6:03  MFSK32: Winter SWL Fest forums, with image
  7:24  MFSK32: Lasers for space communication, with image
12:09  MFSK64L: Restrictions on Turkish media, with MFSK64 image
19:19  MFSK64: Independent bookstores in USA, with image
26:35  MFSK32: Closing announcements

Please send reception reports to radiogram@voanews.com

VOA Radiogram transmission schedule
(all days and times UTC)
Sat 0930-1000 5745 kHz
Sat 1600-1630 17860 kHz
Sun 0230-0300 5745 kHz
Sun 1930-2000 15670 kHz
All via the Edward R. Murrow transmitting station in North Carolina.

The Mighty KBC, with studios in the Netherlands but leased transmitters in Germany, will transmit a minute of MFSK64 Saturday at about 1230 UTC on 6095 kHz, and again Sunday at about 0130 UTC (Saturday evening 8:30 pm EST) on 7375 kHz. The 6095 kHz is usually not audible in North America except via this SDR receiver in the Netherlands: http://websdr.ewi.utwente.nl:8901/ . Please send reception reports to Eric at themightykbc@gmail.com.

The Winter SWL Fest will be 14-15 March 2014, near Philadelphia. I will be there to demonstrate VOA Radiogram and the decoding of text and images from shortwave broadcast. Information at swlfest.com.