[time-nuts] OCXO sensitive to gravity

[Magnus Danielson]

Bruce Griffiths wrote:
> Some caution is in order as some ferrites used in RF transformer coils
> may be permanently altered by application of a strong magnetic filed.
> Testing at lower fields first would be safer.
> Setupo a pair of Helmholtz coils and excite them with low frequency AC
> and look for associated sidebands in the oscillator output.
> NB a spectrum analyser is unlikely to be sensitive enough for this.

I was just about to say the same. Also, it has much higher repeatability 
and makes quality measures on measures and counter-measures much easier 
to achieve.

Cheers,
Magnus