[time-nuts] HP5065a cfield issue

[Poul-Henning Kamp]

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paul swed writes:

Change the polarity of the C-field by swapping the two wires ?

If that changes your frequency, you know you have a residual magnetic
field pushing the frequency of your atoms.

But be aware that the frequency shift does not tell you the magnitude
of the residual field, because it may have a direction different
from the C-field solenoid.

That also means that even with no frequency shift, a magnetic field
could still be present if it is perfectly orthogonal to the C-field
solenoid.

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