SCS Tracker RPR spurious audio emissions fixed
The 1.7k version of the SCS Tracker firmware appears to address the spurious signals above and below the primary signal.
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Audio spur above RPR spectrum
The SCS Tracker DSP TNC works very well, but we noticed some additional energy transmitted above and below the primary Robust Packet 500 Hz bandwidth.
Going all in for the SCS Tracker DSP TNC
The SCS Tracker DSP TNC wins its way into the overall design of the VAPN.
SCS Tracker DSP TNC at 1200 baud
Our interaction with SCS engineers reaps an improvement in 1200 AFSK performance in their Tracker DSP Terminal Node Controller yielding one TNC with packet modes for DC to daylight.
Incorporating Direwolf into the VAPN design
Direwolf – What’s not to like The more I learn about the various software demodulating algorithms in the amateur community, the more I like their commitment towards using correlation and other techniques to squeeze a few more good AX.25 frames out of the ether. The Direwolf project appears to be one effort incorporating the lessons … Read more