Thursday, April 04, 2013

VOA Radiogram on 6-7 April will feature MT63 modes

From :

VOA Radiogram for the weekend of 6 and 7 April 2013 will feature MT63 modes, comparing them to MFSK modes at similar speeds.

Here’s the menu, showing mode, center audio frequency, and duration (minutes:seconds):

    MFSK16, 750 Hz, 1:56
    MT63-500, 750 Hz, 2:14
    MFSK32, 1000 Hz, 2:12
    MT63-1000, 1000 Hz, 2:47
    MFSK64, 1500 Hz, 1:44
    MT63-2000, 1500 Hz, 2:12
    MT63-2000, 1500 Hz, 3:20 (Flmsg formatted)
    MFSK32, 1500 Hz, 1:20 (image)

The MT63 modes are long interleave. In Fldigi, Configure > Modems > MT63 > check 64-bit (long) interleave.

To view the Flmsg transmission as a web page, in Fldigi, Configure > Misc > NBEMS > under Reception of Flmsg files, check Open with Flmsg and Open in browser, and below that indicate where your Flmsg file is located.

See VOA Radiogram: how to decode the modes.

Here is the 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 IBB Edward R. Murrow transmitting station in North Carolina.

Reception reports with, if possible, audio samples, screenshots, and other attachments, would be appreciated.

E-mail to

Twitter: @voaradiogram