Looking at the AX25 standard it seems designed to withstand some amount of error in the timing accuracy of the devices sending or receiving the message. There can be no more than 5 bits before a transition between the two tones, so if a device can adjust based on the transitions or if it can adjust using the special flags it should be able to synchronise.
<div><br></div><div>I've found in experiments the opposite. I need an accurate clock source in my generator for it to be received - at least by the AGWTracker software.</div><div><br></div><div>What typical errors can I get away with for most receivers if any? I assume I am right in my assessment and it is not a slight change in ratios between different timings that effected it. Changing to an accurate clock meant changing clock speed, so recalculating delays, so different rounding errors.</div>
<div><br></div><div>Thanks</div><div> - Richard</div>