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Published 20 hours ago • verified publisher icon Manawyrm

XO compensation

Open Manawyrm opened this issue 6 years ago • 1 comments

It seems that the ad9361-phy,xo_correction attribute isn't used to correctly tune the RX LO, the frequency always seems to be out by a couple hundred Hz...

Might also be only a badly configured XO correction value on my PlutoSDR, but I don't have a stable reference clock source at hand ):

Manawyrm avatar Aug 20 '17 17:08 Manawyrm

The ad9361-phy,xo_correction context attribute is purely there for information purposes.

It corrects on the Pluto itself - there isn't anything needed by the host application. It's likely that it might be a temp thing - it does take a bit for the temperature to become stable. (and the oscillator drifts about 10ppm due to temp)..

-Robin

rgetz avatar Dec 19 '18 23:12 rgetz