The latest update to the SCS Tracker firmware seems to fix the spurious audio issues outlined in our previous article.
Audio spectrum earlier this year…
Audio spectrum of revision 1.7f
Audio spectrum of revision 1.7k…
Better and better over 2018. Awesome.
On the air…
This is a snapshot of a local SDR. Previously it did show a bit of energy above and below the well defined 500 Hz digital pedestal. Now it looks clean.
Conclusion
SCS fixed it.