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.

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  • VOA Radiogram, 28-29 March 2015, will try the new 8PSK FEC modes

    image

    For this weekend’s VOA Radiogram, 28-29 March 2015, please download Fldigi 3.22.06 from http://w1hkj.com/download.html.

    We will try two of the new 8PSK modes with forward error correction (FEC). These are available in 3.22.06. The FEC built into 8PSK125F and 8PSK250F might help these modes survive the rigors of shortwave, despite their fast speed.

    Fldigi 3.22.06 also restores the ability to display UTF-8 characters, although this weekend’s program contains no non-Latin characters or exotic punctuation marks.

    This weekend’s program (program 104) will transmit the same 724-word news story about social media in Africa in five different modes, each increasing in speed, until MFSK32 resumes to close the show …

    2:53 MFSK32 (120 wpm)*
    12:18 MFSK64 (250 wpm)*
    18:05 8PSK125F (317 wpm)
    20:55 MFSK128 (480 wpm)*
    25:17 8PSK250F (635 wpm)
    26:51 MFSK32: Closing announcements
    27:33 MFSK32: Bonus image of solar eclipse

    * with image

    It is likely that decoding errors will be seen as the modes increase in speed. Nevertheless, please stay tuned until the closing announcements and image in MFSK32.

    Please send reception reports to radiogram@voanews.com.

    VOA Radiogram transmission schedule
    (all days and times UTC):
    Sat 0930-1000 5910 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.

    * This will change to 5745 kHz beginning 4 April 2015.

    The Mighty KBC will transmit a minute of MFSK64 Saturday at about 1230 UTC on 6095 kHz and Sunday at about 0130 UTC on 7375 kHz. Both frequencies are via Germany. The last KBC Saturday broadcast on 6095 kHz will be 28 March. KBC will continue Sundays at 0900-1600 UTC on 6095 kHz.

    AndFlmsg. If you have an Android device, please try the free beta Android app AndFlmsg from http://www.w1hkj.com/vk2eta/. Although AndFlmsg is designed for Flmsg forms, it also decodes plain text (non-Flmsg) content. Swipe AndFlmsg until you reach the modem screen, the one with the W.Fall On/Off button bottom right. Acoustic coupling – radio speaker near the Android device’s built-in mic – usually works well.

    • March 26, 2015 (10:13 pm)
    • 2 notes
    1. ecstation9 liked this
    2. ecstation9 said: Increasing difficulty decoding faster modes. Also, poor propagation on 16m Band. MFSK32, 64 & 128 decoded good but 8PSK250F was very poor (<10% decoding). Same performance with Image decoding as Text. BALTIMORE MD USA
    3. voaradiogram posted this