[IRCA] VOA Radiogram on 30/31 March will feature MFSK modes

[Mike Terry <miketerry73@xxxxxxxxxxxxxx>]

VOA Radiogram is a Voice of America program experimenting with digital text and images via shortwave broadcasting.
 
VOA Radiogram during the weekend of 30/31 March will feature MFSK modes, including two MFSK32 images.
To ensure that the images are properly aligned, i.e. not slanting (as below), it is useful to calibrate your soundcard.
A useful guide to soundcard calibration is provided by the Pennsylvania Situation Report  http://www.pa-sitrep.com/NBEMS/fldigi_calibration.htm
 
 
VOA Radiogram transmission schedule
(all days and times UTC):

Sat 1600-1630 17860 kHz
Sun 0230-0300 5745 kHz
Sun 1300-1330 6095 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.

VOA Radiogram on 30/31 March will feature MFSK modes - Here is the “menu” for VOA Radiogram on 30 and 31... http://t.co/u8nxGll4Oq@VOARadiogram

Here is the “menu” for VOA Radiogram on 30 and 31 March 2013. This weekend, the MFSK modes are featured. The listing below shows the mode, center audio frequency, and duration of transmission in minutes:seconds.

    1. MFSK4 1500Hz 0:40*
    2. MFSK16 1500Hz 1:00
    3. MFSK32 1000Hz 1:00
    4. MFSK32 2500Hz 1:00
    5. PSKR125 2500Hz 1:00
    6. PSKR250 2500Hz 1:00
    7. MFSK64 2500Hz 1:00
    8. MFSK64 2500Hz 3:07 Flmsg format
    9. PSKR500 2000Hz 0:58
    10. MFSK128 2000Hz 0:57**
    11. MFSK32 2000Hz 1:40 Image
    12. MFSK32 1500Hz 0:58 Image

* No RSID. You must tune the audio frequency very carefully. Don’t worry if it does not work.

**The RSID might not work, so manually select MFSK128 (needs new version of Fldigi) and the 2000 Hz center audio frequency.

Transmission schedule:
(all days and times UTC):
Sat 1600-1630 17860 kHz
Sun 0230-0300 5745 kHz
Sun 1300-1330 6095 kHz
Sun 1930-2000 15670 kHz
All via the Edward R. Murrow transmitting station in North Carolina.

Please send reports, audio samples, screenshots, etc to voaradiogram@xxxxxxxxxxx

If you are unable to listen to the program because of Easter weekend, this MFSK show will be repeated in the next few weeks.
 
http://voaradiogram.net/


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