Radio Australia MFSK tests are successful

The first Radio Australia test of digital text was successful. It was 18 May 2013, 0830-0835 UTC on 7410 and 11945 kHz.

I saw reports of 100% copy on 11945 from listeners in Germany and Kansas City: pretty good range for one transmitter and one frequency.

In norther Virginia, I listened and decoded on 7410 kHz because it was the signal coming in less well. Despite a fair-to-poor signal level, and a Cuban jammer on adjacent 7405 (listen to and decode audio here), copy of both MFSK16 and MFSK32 text was 100%.

Because the broadcast started a bit late, it ended just as the MFSK32 image was beginning. After the text, Radio Australia switched back to a sporting event. The audio gives you an idea of how a voice broadcast sounds given the same reception conditions.

Roger in Petersberg, Germany, provides this image of his reception on 11945 kHz.

Peter Marks in Sydney wrote this blog post about  the Radio Australia digital text test, and he produced this YouTube video.

The MFSK32 image was included during the transmission at 1230-1235 UTC on 9580 kHz. This is what it looked like in northern Virginia. A bit rugged but not bad for half way around the word:

My text copy on 9580 kHz was 100%. This is what it looked like when MFSK16 switched over to MFSK32: 

Reception by Omar Alfredo Ortiz in Bogota, Colombia, 18 May 2013 at 0830 UTC on 11945 kHz in this YouTube video.