Hello - I have a BBFO-style iProbe here _at_ 400 MHz where atma is failing
repeatedly on the proton channel. The error message references "unexpected
motor movement" and if I dig deeper into the logs I see mention of motor
over-current. When I issue the atma command, the proton wobb curve
displays and is very poorly matched. ATMA makes a brief attempt to optimize
(as the wobb curve shifts slightly) and then the error condition.
What have I tried?
* atmm (which fails in the same manner)
* "atma reset"
* "atma homing"
* Tuning 1H as F1 and also as F2 (with 19F, 13C and 15N as F1)
* power cycle
With the iProbes, nothing is easily accessible or visible and so Im not sure
what else can be done. Wondering if there are any other suggestions
out there.
Cheers,
Mike
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Received on Fri Nov 14 2025 - 07:33:14 MST