I have a partially assembled QMX+ sitting on my bench. I need to get it finished.
I'll let somebody else talk about why this firmware update is somewhat earth shattering for the ham radio community and why the QMX itself is a huge deal. We're talking a $1K SDR for $150, multiband up to 6M, fully digital.
I built a QDX - great little radio.
Very nice to see this on the front page!
Would it be capable of Winlink now? If not what would that take?
I don't know anything about the product, but just reading the notes, as soon as I read:
With ALL features enabled (CESSB, compression, mic AGC, Transmit equalization, noise gate, phase and amplitude pre-distortion, you name it), the CPU utilization is approximately 93%. So in other words there is no problem enabling everything.
... I knew I had found some embedded developers. :) Cheers from another STM32 developer. :)
These new little software based radios are amazing! I'm traveling in the UK now now with a truSDX -- I've run it from all sorts of places with a wire hanging out hotel windows.
SSB in these types of radios--including the QMX-- is generated with the "phase method" https://electronicspost.com/draw-and-explain-the-block-diagr...
You can change the phase of the Si5351 chip fast enough over its seral interface to accomplish this.'
I've been an Extra since 1977, and I've never seen a better time to be a radio hobbiest! So many things are possible today. I still run mostly CW, copying in my head, but I enjoy the digital modes when doing "hotel room" operations with makeshift antennas.