Radio Australia digital test transmission

[VK3TYG]

Hi guys.
I have been informed that Radio Australia, tonight 19th May, will broadcast a series of digital test transmissions at two different times.
They will be using the MFSK16 & MFSK32 modes. MFSK16 will be first, followed by MFSK32.
Schedules are:-

0830-0835 UTC (1830-1835 EST) - 7410 & 11945
1230-1235 UTC (2230-2235 EST) - 9580 & 12095

Have a go at decoding these transmissions, reception reports are welcome.
Not sure if this will become a regular feature or not.

Cheers, Chris.

[VK3YE]

More on this from VK2TPM at http://blog.marxy.org/2013/05/radio-aus ... -test.html

[VK3AZZ]

Hi Guys,
Can you point those of us who are not so familiar with these digital modes pointers as to what software etc we can use to decode these test transmissions ?

Thanks
Mal
VK3AZZ

[ZL3RC]

It looks like VK2TPM is using good old Fldigi which can decode both MFSK16 & MFSK32.
Its a Mac and PC compatible app so we can all do the decoding

This link will take you to the download site:
http://www.w1hkj.com/Fldigi.html

Enjoy

Roger ZL3THQ

[VK3AZZ]

Thanks Roger

Cheers,
Mal
VK3AZZ

[VK4DU]

That is most interesting.

Many thanks.

The Bureau of Met are doing the same kind of thing, but using DRM.

Looks like Nigel (from Radio Oz) chose a better mode...



73
Glenn

[VK2BLS]

Good copy on 7.410 MFSK-16 & 32 modes.

[VK5EI]

Test transmission at 08:30 UTC all received ok tonight, using DM780 for decoding sofware. I have sent an email to Nigel as requested.

cheers - VK5EI
Joe

[VK2CSW]

Most interesting.

A first for me. Never successfully decoded any digital transmission before.

This could be strangely fascinating.

[VK2PR]

Thanks for the heads-up.

Successfully decoded the transmission and sent report to Nigel.

Screenshot attached.

[VK5IR]

What mode do we set the radio to receive to receive these signals?

[VK2PR]

The transmission is AM.

[VK5IR]

Received the MFSK16 transmission fine here is Adelaide, didn't get much of the MFSK32 transmission very well though. I was using DM780.

Received on 9580 KHz.


Signal was 579. Emailed them a transcript of what I received and an audio recording of their signal as requested.

I wonder what their output power would have been?

[VK2PR]

Pretty sure it's 100kW out of Shepparton.