to guide me. So I'd
welcome any advice on what to expect, what precautions to take and what I shall
need to effect a repair.
John Ponsonby
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Tom Holmes wrote: "If the Earth were homogeneous then g would drop by 1/r^2
outside and 1/r inside the surface. "
This is incorrect. If the earth were homogeneous then g would indeed drop as
1/r^2 outside but would go as r inside. Thus it drops to 0 at the centre as
well as at infinity.
John P
An H-maser works by continuously bleeding a beam of monatomic hydrogen into the
system. This gas has to be continuously 'pumped' out. The ion pumps used don't
have an outlet port. They work by burying the H2 gas in titanium plates. Thus
as Ole Ronningen says the pumps have a finite working life
it,
because of the instability of the sensor, one can't control it.
John Ponsonby
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rical without
any underlying semiconductor theoretical foundation.
John Ponsonby
Do we know what this ?Long Term Aging Process? is or is it proprietary?
On Sat, Sep 26, 2020 at 5:03 PM Bruce Griffiths mailto:bruce.griffi...@xtra.co.nz>>
wrote:
> Drift ~1-2mK per year for suitably condition
When I designed and built my LORAN-C receiver, for navigation not precise time,
it was my understanding that all GRI's (Group Repetition Intervals) were
expressed as four digit numbers. I designed my receiver accordingly. The number
was the repetition time in units of 10 microsecs. This is the
