Joe Taylor K1JT hints at next generation of digital modes

Stu 2E0XXO

This was taken from an excellent blog by EI7GL.

It would be interesting to hear how; if at all,l it will impact Flex users.
And importantly, how will it be interpreted by potential Flex customers like me.
I do not fully understand  flex architecture.
Would be great to hear this discussed....

"In a recent short talk at the amateur radio show in Friedrichshafen, Germany, Joe Taylor K1JT gave a hint of a new digital mode in the pipeline.
This will use the I and Q output of a SDR transceiver for receiving and sending the signals and over a wider bandwidth. This will be a major departure for the current suite as it will not be compatible with superhet transceivers."

Stu
2E0XXO

John - AI4FR

Sounds interesting. I'll have to find that Blog. It also sounds like it'll be a very wide mode which may be the reason legacy transceivers can not handle it.

tparish

Well this is something I am keen to learn about! Fascinating trend.

Stu 2E0XXO

here the blog and the video is there too.
interesting times ...

https://ei7gl.blogspot.com/

Michael N3LI

It's the I and Q portions that will give them trouble. 

Martin AA6E

Interesting. Well, of course it's quite possible to use broad bandwidth with analog methods. It's just easier and cheaper to make radios with SDR technology now. I and Q outputs, whether analog or digital, are needed if you want to preserve phase information. E.g. separating positive and negative IF frequencies. Fortunately, Flex gives us I/Q through DAX so we're well set for wideband WWSJT or whatever. (On receive but not transmit) What's not so clear is whether there would be FCC support for >3 kHz WB modes on any bands below 450 MHz - unless you're an AM or ESSB op. 73 Martin AA6E

Lee - N2LEE

We are so lucky to have someone with Joe's experience and passion as a member of the Amateur Radio community. I can't wait to see what he and his team come up with for us next.
What a great time to be a ham.

KC2QMA_John

Joe Taylor K1JT hints at next generation of digital modes

One of the huge developments in Amateur radio over the last few years have the development of digital modes like FT8. The software (WSJT-X) for these modes uses the sound card in a PC to decode and encode these digital signals.

Up to now, this approach allows it to be used with standard superhet transceivers.
In a recent short talk at the amateur radio show in Friedrichshafen, Germany, Joe Taylor K1JT gave a hint of a new digital mode in the pipeline.

This will use the I and Q output of a SDR transceiver for receiving and sending the signals and over a wider bandwidth. This will be a major departure for the current suite as it will not be compatible with superhet transceivers.

By John, EI7GL https://ei7gl.blogspot.com/

https://www.youtube.com/watch?v=Kmh748he8bk

Stu 2E0XXO

has anyone heard anymore of this new mode ?

N2WQ

Both the CW and RTTY skimmer servers use the IQ data, not the audio stream. So the concept by itself is no new.

Stu 2E0XXO

ok thats great, but any news of the actual mode/bandwidth itself ?