[time-nuts] Datum / Efratom LPRO 101 - ebay
robert8rpi at yahoo.co.uk
Wed Apr 1 12:47:18 UTC 2009
I notice that this seller is using TVB's plots on his listing. This is a bit naughty. Did he ask you Tom?
--- On Wed, 1/4/09, Eamon Skelton <nospam at oceanfree.net> wrote:
> From: Eamon Skelton <nospam at oceanfree.net>
> Subject: Re: [time-nuts] Datum / Efratom LPRO 101 - ebay
> To: "Nils Palm" <nils at stiebeleltronasia.com>, "Discussion of precise time and frequency measurement" <time-nuts at febo.com>
> Date: Wednesday, 1 April, 2009, 11:38 AM
> > Now I was wondering what about these oscillators.
> > Why are they offered so cheap and so many. What have
> > they be used for ?
> These are from used equipment so they can't be expected
> to last as long as a new unit. They are probably from
> surplus telecomms equipment.
> > Also I cannot find any information about the
> > on the internet. Are they out of business ?
> Datum were taken over by Symmetricom.
> > Would such a oscillator be usefull for us, as we need
> > a 10Mhz signal with about 1e-8 precision.
> > Thanks a lot !
> > nils
> The LPRO-101 sounds like the ideal candidate for this
> job. From memory, I think the long term stability spec
> is 1e-9/10 years, 5e-11/month.
> I have had very good service from this seller:
> Friendly helpful and reliable. Very quick shipping from
> China by EMS. I'm not connected to this seller in any
> way, just another happy customer.
> A GPSDO is another cost effective solution that
> would easily meet your requirements. The Trimble
> Thunderbolt is widely available on eBay. You
> should also check out the CW12-TIM module from
> Linux 2.6.26
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