VOA Radiogram is now Shortwave Radiogram. Please visit swradiogram.net


VOA Radiogram is a Voice of America program experimenting with digital text and images via shortwave broadcasting. It is produced and presented by Dr. Kim Andrew Elliott.

VOA Radiogram is now Shortwave Radiogram. Please visit swradiogram.net


VOA Radiogram is a Voice of America program experimenting with digital text and images via shortwave broadcasting. It is produced and presented by Dr. Kim Andrew Elliott.

VOA Radiogram transmission schedule
(all days and times UTC):
Sat 0930-1000 5745 kHz
Sat 1600-1630 17580 kHz
Sun 0230-0300 5745 kHz
Sun 1930-2000 15670 kHz
All via the Edward R. Murrow transmitting station in North Carolina.

To decode the digital text and images transmitted on VOA Radiogram, download Fldigi, Flmsg and Flamp from w1hkj.com. See also how to decode the modes.

  • ask me anything
  • rss
  • archive
  • radiogram@voanews.com
  • Decoding VOA Radiogram on  Android devices

    Some VOA Radiogram listeners had a chance to try the beta AndFlmsg app – Fldigi for Android devices – during the weekend of 7-8 March 2015 (program 101).

    Ricardo in Spain provided this photo of his decoding using a four-year-old Samsung Galaxy S2 and an equally small Icom IC-E92D 144/440 MHz transceiver whose wideband receiver includes HF …

    image


    Ricardo also provided these videos of his And Flmsg decoding …

    https://vine.co/v/OEd9KZZTj5h

    https://vine.co/v/OEdQ6rUXibi

    Emiliano in Italy also decoded the 15670 kHz transmission and provided this screenshot …

    image

    Merkouris in Greece decoded the 17860 kHz broadcast …

    image

    And this from Philip in the Netherlands, same time and frequency …

    image

    Here is my decode of the 5745 kHz transmission, using a Sangean ATS-909X with a patch cord to an inexpensive Asus tablet …

    image

    Most decoding was via “acoustic coupling,” i.e. placing the radio’s speaker next to the Android device’s built-in Mic. (Emiliano placed one half of a set of earphones next to the built-in mic, while listening with the other half.) This generally was successful.

    Feeding the audio via a patch cord is more complicated. Some Android devices do not have the TRRS, 4-pin jack that accommodates an external microphone as well as headphones. If the TRRS jack is available, an adapter is necessary to provide a separate audio input. And, finally, the audio level must be adjusted. Even though an audio cable is plugged in, this does not turn off the built-in mic unless the audio through the cable reaches a certain level. On the other hand, AndFlmsg (like most decoding software) likes a low input level. I have found that, with a higher input level, the decode is good, but the waterfall is noisy, with the trace of the MFSK32 signal difficult to see. Experiments will continue.

    • March 11, 2015 (12:37 pm)
    • 1 notes
    1. voaradiogram posted this