[time-nuts] HP E1938 oscillator
rk at timing-consultants.com
Mon May 28 03:30:09 EDT 2007
I've been involved with importing and exporting electronic goods including
Rb and OCXO from the US for more years than I care to remember. Unless
things have been tightened up radically recently, all that was required on
most of these items is an End User Statement - i.e. a record of where the
goods are going to be finally used.
In the good old days, the guideline used to be anything with a stability of
1E-9 per day or better needed an Export Licence!
If coming from another country, then local rules apply, although any members
of NATO would typically be utilising US rules for restricted items.
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Dr Bruce Griffiths
Sent: 28 May 2007 03:47
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] HP E1938 oscillator
SAIDJACK at aol.com wrote:
> In a message dated 5/27/2007 16:10:46 Pacific Daylight Time,
> bruce.griffiths at xtra.co.nz writes:
>> Technical Notes:
>> A resolution of n bit corresponds to a quantization of 2n levels.
>> Random snippet from Supplement No1 to Part 774.
> Hi Bruce,
> I have yet to figure it out too. That's why we have all these lawyers
> here in the US. What's even worse: if you give (well meant) advice,
> and the person get's into trouble, they can come after you :(
> But I think in spirit the export controls mean: anything that is of
> technical value, especially if it can be used militarily, needs to be
> under very close control of the government.
> Then again most Western Countries are free of most export restrictions.
As far as I have been able to ascertain the list of export controlled items
is virtually identical for most western countries and Russia.
There are some slight variations (mainly additions) between countries.
No doubt (for Russia at least) the country list classifications differ.
I stumbled over the local NZ list of export controlled items, as usual
purely by accident, when searching for something somewhat unrelated
(External cavity diode lasers).
As far as I can tell by perusing the complete CCL list (US version) neither
the E1938A nor any of its component parts is a controlled item.
It would take a creative interpretation by an incompetent lawyer to apply
the section on Atomic frequency standards to the E1938A which is not by any
stretch of the imagination an Atomic frequency standard. It is not capable
of being space qualified without substantial redesign nor is it capable by
design of achieving a drift of 1E-11 or less per month.
Since the US has no jurisdiction here I can give well intentioned advice
without worrying about prosecution (as long as I don't visit the US at
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