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ttrftech / NanoVNA

Very Tiny Palmtop Vector Network Analyzer
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Make max SI5351 output frequency user settable #60

Closed erikkaashoek closed 4 years ago

erikkaashoek commented 4 years ago

There is some variation in the quality of the SI5351 being used. Going to 300MHz is formally always out of spec so you are never sure if the nanoVNA will be able to reach 300MHz Would it be an idea to make the max SI5351 output frequency user settable (and stored in flash) so users experiencing stability issues can set the max SI5351 frequency to a lower value?

edy555 commented 4 years ago

Thanks for pointing out the issue. I also have realized it. https://twitter.com/edy555/status/1173029790808301569 I'll implement a configuration command to adjust the threshold of frequency using harmonic mode.

edy555 commented 4 years ago

Added threshold command to configure maximum output frequency in commit https://github.com/ttrftech/NanoVNA/commit/94659a22ba90955a8eb82657bceaff6daa7a96c6 Needs saveconfig to store into flash after threshold command. Please check it out!

erikkaashoek commented 4 years ago

Works very well! Will post updated build on the nanoVNA group.io