SCS Tracker RPR spurious audio emissions fixed

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…

Robust packet spectrum
Robust packet spectrum with audio spurs above and below 500 Hz pedestal.

Audio spectrum of revision 1.7f

Audio spectrum of SCS Tracker firmware version 1.7f
Audio spectrum of SCS Tracker firmware version 1.7f

Audio spectrum of revision 1.7k…

Audio spectrum of SCS Tracker firmware version 1.7k
Audio spectrum of SCS Tracker firmware version 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.

SDR capture of VAPN 30m port sending beacon.

 Conclusion

SCS fixed it.